ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • Volumetrie
  • pheromone
  • Springer  (212)
  • Frontiers Media
  • 2015-2019
  • 1980-1984  (83)
  • 1975-1979  (129)
Sammlung
Schlagwörter
Verlag/Herausgeber
Erscheinungszeitraum
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Short-term variations in catches of the pea moth,Cydia nigricana, in interacting pheromone traps (1984)
    Springer
    Entomologia experimentalis et applicata 36 (1984), S. 145-149 
    Details
    ISSN: 1570-7458
    Schlagwort(e): Pea moth ; Cydia nigricana ; pheromone ; trap ; interactions ; trapping period ; trap catch ; flight behaviour ; model
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Beschreibung / Inhaltsverzeichnis: Résumé Des données antérieures concernant les interactions entre des pièges à phéromone alignés le long du vent ont été utilisées pour déduire les caractéristiques du comportement d'orientation deC. nigricana. Ces données ont été introduites dans un modèle de simulation quantitative qui prédisait que quand les captures totales sur une ligne ont été regroupées sur une période globale de piégage, la proportion capturée dans chaque piège devrait aussi avoir des valeurs moyennes semblables, mais varie plus largement que précédemment indiqué. Les simulations concernant des intervalles consécutifs beaucoup plus courts pendant la même période de piégage ont suggéré une forme spécifique de cette variation. Cette note signale des variations à court terme dans la proportion capturée au piège qui confirment ces prédictions. Nous montrons que sur des intervalles consécutifs brefs pendant une simple période de piégage, la proportion capturée dans le piège central d'une ligne de 3 pièges est contstante, bien que sa valeur change suivant les périodes de piégage. La proportion capturée dans le piège face au vent de 2 ou 3 lignes de pièges suit cette tendance dans le temps, ce qui est généralement bien représenté avec des courbes simples. Ces tendances changent suivant les périodes de piégage, mais des lignes de pièges fonctionnant simultanément fournissaient des résultats similaires. On suggère que ces résultats sont dus à des changements dans des processus comportementaux systématiques et non à des effects aléatoires. Les mécanismes possibles sont discutés.
    Notizen: Abstract Short-term variations in the relative catch in each of two or three interacting pheromone traps for the pea moth,Cydia nigricana (F.), were investigated for traps aligned along the wind. The proportional catch in each trap varied widely, although the mean values accorded with previous estimates. Over consecutive short intervals during a single trapping period the proportion caught in the centre trap of a three-trap line was constant. The proportion caught in the upwind trap of two-and three-trap lines showed trends in time. These trends differed between trapping periods, but two lines of traps operated simultaneously gave similar results to each other. It is suggested that these results, which are predicted by a model based on various components of moth orientation behaviour, are caused by changes in systematic behavioural processes, not random effects. Possible mechanisms are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00569955
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    A field test on a third component of the female sex pheromone of the rice striped stem borer, Chilo suppressalis, in the Philippines (1984)
    Springer
    Entomologia experimentalis et applicata 36 (1984), S. 295-296 
    Details
    ISSN: 1570-7458
    Schlagwort(e): Chilo suppressalis ; stem borer ; pheromone ; rice ; Z9-16:Ald ; Z11-16:Ald ; Z13-18:Ald
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00185662
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Mutual inhibition of the attractant pheromone response by two species ofIps(Coleoptera: Scolytidae) (1975)
    Springer
    Journal of chemical ecology 1 (1975), S. 101-113 
    Details
    ISSN: 1573-1561
    Schlagwort(e): pheromone ; inhibition ; Scolytidae ; Ips ; pini ; paraconfusus ; ipsenol ; linalool
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The bark beetles,Ips pini andI. paraconfusus, are not cross-attractive in the field although they attack the same host material at the same time. Logs containing the pheromone-producing sex (males) of both species side by side attract significantly fewer beetles of each species than do males of either species alone. Ipsenol, a component of the maleI. paraconfusus pheromone, duplicates the activity of maleI. paraconfusus in inhibiting the response ofI. pini to maleI. pini. Linalool from maleI. pini also reduces the catch ofI. paraconfusus in response to maleI. paraconfusus. Simultaneous production of a specific attractant pheromone and an interspecific chemical inhibitor favors exclusive use of the host substrate by the first arriving species.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987723
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Attraction of bark beetles (Coleoptera: Scolytidae) to a pheromone trap (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 723-752 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Ips typographus ; pheromone ; release ; recapture ; diffusion ; model ; Coleoptera ; Scolytidae ; trap ; marking ; dispersal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The movement of bark beetles near an attractive pheromone source is described in terms of mathematical models of the diffusion type. To test the models, two release experiments involving 47,000 marked spruce bark beetles [Ips typographus (L.)] were performed. The attractive source was a pheromone trap, surrounded by eight concentric rings with eight passive trap stations on each ring. Captures were recorded every 2–10 minutes for the pheromone trap and once for the passive traps. The models were fitted to the distribution in time of the central pheromone trap catch and to the spatial distribution of catch among the passive traps. The first model that gives a reasonable fit consists of two phases: Phase one—After release the beetles move according to a diffusion process with drift towards the pheromone trap. The strength of the drift is inversely proportional to the distance from the traps. Phase two—those beetles attracted to, but not caught by, the pheromone trap are no longer influenced by the pheromone, and their movement is described by a diffusion process without drift. In phase two we work with a loss of beetles, whereas the experiment seems to indicate that the loss of beetles in phase one is negligible. As a second model, the following modification of phase one is considered: After release the beetles move according to a diffusion process without drift, until they start responding to the pheromone (with constant probability per unit time), whereafter they start moving according to a diffusion process with drift. This study, like other release experiments, shows that the efficiency of the pheromone trap is rather low. What is specific for the present investigation is that we try to explain this low efficiency in terms of dynamic models for insect movement. Two factors seem to contribute: Some beetles do not respond to pheromone at all, and some beetles disappear again after having been close to the pheromone trap. It also seems that the motility of the beetles decreased after they ceased responding to the pheromone. Furthermore, the data lend some support to the hypothesis that flight exercise increases the response of the beetles to pheromone.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988539
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Olfaction in the boll weevil,Anthonomus grandis Boh. (Coleoptera: Curculionidae): Electroantennogram studies (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1759-1785 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Cotton boll weevil ; Anthonomus grandis ; Coleoptera ; Curculionidae ; pheromone ; kairomone ; plant odor ; olfaction ; electroantennogram ; attractant ; host plant ; green leaf volatiles
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Electroantennogram (EAG) techniques were utilized to measure the antennal olfactory responsiveness of adult boll weevils,Anthonomus grandis Boh. (Coleoptera: Curculionidae), to 38 odorants, including both insect and host plant (Gossypium hirsutum L.) volatiles. EAGs of both sexes were indicative of at least two receptor populations: one receptor population primarily responsive to pheromone components and related compounds, the other receptor population primarily responsive to plant odors. Similar responses to male aggregation pheromone components (i.e., compounds I, II, and III + IV) were obtained from both sexes, but females were slightly more sensitive to I. Both sexes were highly responsive to components of the “green leaf volatile complex,” especially the six-carbon saturated and monounsaturated primary alcohols. Heptanal was the most active aldehyde tested. More acceptors responded to oxygenated monoterpenes than to monoterpene hydrocarbons. β-Bisabolol, the major volatile of cotton, was the most active sesquiterpene. In general, males, which are responsible for host selection and pheromone production, were more sensitive to plant odors than were females. In fact, males were as sensitive to β-bisabolol and heptanal as to aggregation pheromone components. Electrophysiological data are discussed with regard to the role of insect and host plant volatiles in host selection and aggregation behavior of the boll weevil.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987360
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Sex pheromone specificity as a reproductive isolating mechanism among the sibling speciesArchips argyrospilus andA. mortuanus and other sympatric tortricine moths (Lepidoptera: Tortricidae) (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 71-84 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Archips argyrospilus ; Archips mortuanus ; pheromone ; attractant ; Tortricidae ; (Z)-11-tetradecenyl acetate ; (E)-11-tetradecenyl acetate ; (Z)-9-tetradecenyl acetate ; dodecyl acetate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract MaleArchips argyrospilus (Walker) were maximally attracted to a 60∶40∶4∶200 admixture of (Z)-11-tetradecenyl, (E)-11-tetradecenyl, (Z)-9-tetradecenyl and dodecyl acetates. The identification of (Z)-9-tetradecenyl acetate, in addition to the other 3 components reported previously, is the first report of a 4-component pheromone system in moths.Archips mortuanus Kearfoot, a sibling species, was maximally attracted to a blend of the same components, but in a 90∶10∶1 mix of the tetradecenyl acetates. Among a number of tortricine moths that co-occur on apples and other hosts in New York, British Columbia, and elsewhere, differences in diel rhythms of attraction and seasonal distribution are insufficient to maintain reproductive isolation. Although the attractant systems of these species often possess components in common, males are maximally attracted to a speciesspecific blend. In tortricine moths attraction specificity appears to be a paramount mechanism for species partitioning.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988135
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Effects of slow-release formulation of syntheticendo- andexo-brevicomin on southern pine beetle flight and landing behavior (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 133-141 
    Details
    ISSN: 1573-1561
    Schlagwort(e): pheromone ; inhibitor ; bark beetle ; Dendroctonus ; southern pine beetle ; slow-release formulations
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract A slow release formulation of the bark beetle pheromones,endo- andexo-brevicomin, significantly reduced landing of southern pine beetles on host trees. Beetle flight activity within the infestation was not affected by the pheromones. The pheromones were released at approximately 600 mg/ha/day via Conrel® hollow fiber controlled-release dispensers.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00994140
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Female pheromone in the black molly fish (Mollinenesia latipinna): A possible metabolic correlate (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 207-217 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Black molly fish ; Mollinenesia latipinna ; pheromone ; thyroxine ; thiouracil ; general activity stimulus ; social contact
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The female black mollyMollinenesia latipinna emits a water-borne pheromone which increases general activity and social contacts among males. Two hormones, thyroxine and thiouracil, administered to the females increase these behaviors in males. Apparently the hormones do not functionally compete in this species, and both seem to elevate the emission of the male stimulant.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00994147
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Sex pheromone of the stable fly: Evaluation of methyl- and 1,5-dimethylalkanes as mating stimulants (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 245-249 
    Details
    ISSN: 1573-1561
    Schlagwort(e): stable fly ; Stomoxys calcitrans (L.) ; pheromone ; sex pheromone ; branched alkanes ; mating stimulant
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Each of 20 methyl-branched and 1,5-dimethyl-branched alkanes that comprise the active principle of saturated hydrocarbons of the female stable fly,Stomoxys calcitrans (L.), was synthesized and evaluated for mating stimulant activity. The compounds that showed the highest degree of activity in bioassays were 15-methyl- and 15,19-dimethyltritriacontanes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988440
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Mating-stimulant pheromone and cuticular lipid constituents of the little house fly,Fannia canicularis (L.) (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 269-278 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Fannia canicularis (L.) ; little house fly ; pheromone ; sex pheromone ; (Z)-9-pentacosene ; heneicosan-8-ol acetate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Chromatograms of the cuticular lipids washed from recently emerged female and maleFannia canicularis (L.) flies were nearly identical, but by the time the flies were 5 days old, the cuticular components of the two sexes differed considerably. A monoolefin which constituted 66% of the cuticular lipid from 5-day-old females stimulated a copulatory response from males and was identified as (Z)-9-pentacosene. The cuticular lipid of the same age males contained only 1% of this compound. Although all the major constituents of the cuticular lipid from mature females were hydrocarbons, 27% of the lipid washed from 5-day-old males was a nonhydrocarbon material that was represented by a single GLC peak. This material was identified as heneicosan-8-ol acetate.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988443
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 11
    Digitale Medien
    Digitale Medien
    Chemical recognition of the mother by the young of the cichlid fish,Cichlasoma citrinellum (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 461-466 
    Details
    ISSN: 1573-1561
    Schlagwort(e): communication ; fish ; cichlid ; Cichlasoma citrinellum ; pheromone ; maternal ; development ; predation ; chemoreception ; fry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract When placed in aY-maze, the 1–10-day-old free-swimming fry of the Midas cichlid can chemically distinguish between their mother and plain water and between another mother and plain water. They do not distinguish between the two mothers offered together or between their father and plain water. Predation pressures make these responses adaptive.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988188
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 12
    Digitale Medien
    Digitale Medien
    An estimate of the effectiveness of pheromone-baited traps for the suppression ofScolytus multistriatus (Coleoptera: Scolytidae) (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 527-537 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Scolytus multistriatus ; Dutch elm disease ; pheromone ; Multilure ; mass-trapping ; Ulmus
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract We attempted to suppress a population ofScolytus multistriatus (Marsham), the principal vector of Dutch elm disease, by trapping flying beetles on sticky traps baited with synthetic pheromone. The estimated catch on 421 traps distributed throughout a 1-km2 plot in Detroit, Michigan, was nearly 1 million beetles. Because an estimated 5 million beetles emerged in the plot during the study period, we conclude that this preliminary trapping study had no appreciable effect on suppressing the population. Studies that employ improved materials and techniques are continuing.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00989074
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 13
    Digitale Medien
    Digitale Medien
    Diel and age-dependent behavioral patterns of exposure-concealment in three species ofTrogoderma (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 409-423 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Dermestidae ; diel behavioral patterns ; 14-methyl-8-hexadecenal ; pheromone ; reproductive isolation ; Trogoderma glabrum ; T. inclusum ; T. variabile ; trogodermal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract AdultTrogoderma glabrum, T. inclusum, andT. variabile exhibit diel periods of exposure-concealment behavior, the frequency and duration of which are age-dependent, and the temporal placement of which is species-dependent. Exposure periods correspond with daily maxima in male sensitivity to the most active female-released sex pheromone component, 14-methyl-8-hexadecenal, and with respective periods of sex pheromone release in females. Exposure-concealment behavior may be a factor in reproductive isolation between these species, since potential communication distances are greatly reduced when either males or females are concealed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00989498
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 14
    Digitale Medien
    Digitale Medien
    trans-Perillenal a furanoid monoterpene from pine saw-fly,Neodiprion sertifer (Hymenoptera: Diprionidae) (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 309-319 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Neodiprion sertifer ; Pine saw-fly ; Hymenoptera ; Diprionidae ; pheromone ; trans-perillenal ; monoterpene
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Volatile constituents present in nanogram quantities in various body parts and glands of the males and females of the speciesNeodiprion sertifer Geoffr. (Hymenoptera: Diprionidae) have been investigated by GC-MS. A significant amount of a volatile constituent was detected in the lateral parts of the integument of abdominal segments II-III. The constituent was identified as the furanoid monoterpenetrans-perillenal (I) previously not known to occur in nature. The identification and synthesis of this compound is described.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987917
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 15
    Digitale Medien
    Digitale Medien
    Sex pheromone of the stable fly (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 353-361 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Stable fly ; Stomoxys calcitrans (L) ; pheromone ; mating stimulants ; alkenes ; cuticular lipids ; copulatory behavior
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The cuticular alkenes of the female stable fly,Stomoxys calcitrans (L), which were responsible for inducing male fly copulatory behavior are (Z)-9-hentriacontene, (Z)-9-tritriacontene, 13-methyl-1-hen-triacontene and 13-methyl-1-tritriacontene. The identifications of the branched alkenes and the synthesis of these four compounds are described. Bioassays indicate that these materials in combination with previously described methyl branched alkanes are more active than the individual components.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987921
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 16
    Digitale Medien
    Digitale Medien
    Specificity of trail markers of forest and eastern tent caterpillars (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 565-574 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Lepidoptera ; Lasiocampidae ; Malacosoma americanum ; Malacosoma disstria ; Tortricidae ; Archips cerasivoranus ; trail marker ; pheromone ; interspecific response ; tent caterpillar
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Exploratory trails deposited on paper strips by the forest tent caterpillar (FTC),Malacosoma disstria Hubner, and the eastern tent caterpillar (ETC),M. americanum (Fabricius), as well as extracts of these trails, readily elicited interspecific trail-following behavior. In 2-choice tests involving simple Y mazes constructed from these paper strips, the caterpillars of both species preferred by approximately 3∶1 the trails of the FTC. Studies involving whole colonies of the ETC maintained under nearnatural conditions in the laboratory, however, indicated that the trails deposited by successful foragers of the ETC as they returned to their tent from feeding sites were more attractive than the exploratory trails of either the ETC or FTC. The pronounced interspecific response of these congeners to each other's trails suggests that they utilize either qualitatively similar or identical trail-marking chemicals. Both species preferred their own trails to those ofArchips cerasivoranus (Fitch) (Tortricidae), providing the first evidence that more distantly related lepidopterous larvae utilize distinct trails.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987841
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 17
    Digitale Medien
    Digitale Medien
    Identification of the white peach scale sex pheromone (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 941-953 
    Details
    ISSN: 1573-1561
    Schlagwort(e): White peach scale ; Pseudaulacaspis pentagona ; pheromone ; attractant ; microtechniques ; enantiomer ; isomers ; (R,Z)-3 ; 9-dimethyl-6-isopropenyl-3 ; 9-decadien-1-ol propionate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Micro techniques were used to obtain spectroscopic and degradative information from less than 5μg of the sex attractant of female white peach scale,Pseudaulascaspis pentagons (Targioni-Tozzetti) isolated from airborne collections. The pheromone was identified as (Z)-3,9-dimethyl-6-isopropenyl-3,9-decadien-1-ol propionate. Both enantiomers of theZ isomer and also the enantiomers of theE isomer were prepared from (R)-or (S)-limonene. Bioassays of material with minimum enantiomeric purity of 95% showed that at extreme dilution only theR,Z isomer attracted male white peach scale; however activity of theS,Z enantiomer could not be completely excluded.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990217
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 18
    Digitale Medien
    Digitale Medien
    Multifunctionality of douglas-fir beetle pheromone 3,2-mch confirmed with solvent dibutyl phthalate (1980)
    Springer
    Journal of chemical ecology 6 (1980), S. 193-201 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Scolytidae ; Dendroctonus pseudotsugae ; pheromone ; multifunctionality ; 3-methylcyclohex-2-en-l-one ; diluent ; dibutyl phthalate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Previous field and laboratory tests withDendroctonus pseudotsugae showing increased attractancy and chirp evocation by very low concentrations of the pheromone 3-methylcyclohex-2-en-1-one (3,2-MCH) dissolved in ethanol with known attractants were repeated with a different diluent, dibutyl phthalate (DBP). Other workers had speculated that the solvent ethanol was actually the synergist. Beetle response was essentially identical with both solvents, confirming the concentration-dependent multifunctionality of 3,2-MCH in Douglas-fir beetle behavior. Contradictions in available data with ethanol indicate unanswered questions about its effect withDendroctonus attractants.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987538
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 19
    Digitale Medien
    Digitale Medien
    Nasonov pheromone of the honey bee,Apis mellifera L. (Hymenoptera: Apidae) (1980)
    Springer
    Journal of chemical ecology 6 (1980), S. 425-434 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Honey bee ; Apis mellifera ; pheromone ; Nasonov pheromone ; extraction technique ; GC-MS ; [13C]-NMR ; terpenoids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Composition of the Nasonov pheromone of the honey bee has been reexamined using new procedures, including analysis of pheromone from single live insects by capillary column GC-MS. Two new components have been identified, nerol and (E,E)-farnesol, and the presence of components proposed previously has been confirmed. Absolute amounts or relative proportions of components in the pheromonal secretion have been determined.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01402919
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 20
    Digitale Medien
    Digitale Medien
    The externalization of vaginal fatty acids by the female rhesus monkey (1980)
    Springer
    Journal of chemical ecology 6 (1980), S. 499-509 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Sex attractant ; pheromone ; vaginal secretion ; primate ; menstrual cycle
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract A series of short-chain fatty acids (copulins), produced by bacterial action from components of vaginal secretions, are involved in the olfactory communication of the female's sexual attractiveness to the male. In intact females, the content of acids in vaginal lavages decreases at midcycle when the female's attractiveness is highest. To test if this apparently anomalous decrease was due to an increase in the rate at which secretions were externalized, 422 wipes of the sexual skin area were collected during 19 menstrual cycles and analyzed for short-chain fatty acids. Despite considerable day-to-day variations there was a trend for the acid content of the wipes to increase at mid-cycle, a result that was consistent with there being an increased flow of secretions to the outside at this time. Other factors besides the rate of externalization may also regulate the strength of the olfactory signal, and the present results are consonant with a role for these acids in signaling the fertile period to the male.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01402926
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 21
    Digitale Medien
    Digitale Medien
    Nasonov pheromone of the honey bee,Apis mellifera L. (Hymenoptera, Apidae). part III. (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 543-554 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Honey bees ; Apis mellifera ; pheromone ; Nasonov pheromone ; enzymic oxidation ; terpenoids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract GC and GC-MS analyses of the multicomponent Nasonov pheromone of the honey bee, and of the air above insects releasing the pheromone, show that constant composition is maintained during release, despite differing volatilities of the components. The regulating mechanism may involve a specific enzyme process, detected in excised Nasonov glands, which converts the major component geraniol into the more volatile (E)-citral. Analysis of honey bees of known ages and at different times of year shows that maximum secretion occurs when foraging is most likely.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987702
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 22
    Digitale Medien
    Digitale Medien
    Deterrence of repeated oviposition in sorghum shootflyAtherigona soccata (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 785-790 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Oviposition deterrent ; pheromone ; sorghum shootfly ; Atherigona soccata ; Diptera ; Muscidae
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The sorghum shootfly,Atherigona soccata, under low population density conditions lays one egg per sorghum plant. Possible regulatory mechanisms of this oviposition behavior are reported. The presence of an egg thoroughly washed and reattached to a leaf does not deter further oviposition, indicating the absence of visual cues. When washings from eggs were sprayed on sorghum plants, or when plants from which eggs had been removed were presented to a gravid female, significant deterrence was observed. Apparently a deterrent pheromone is associated with the water-soluble glue with which the females attach their eggs to the leaves. Some deterrent effect persists for at least 7 days.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00992377
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 23
    Digitale Medien
    Digitale Medien
    Sex pheromone components and calling behavior of the female dermestid beetle,Trogoderma variabile Ballion (Coleoptera: Dermestidae) (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 115-125 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Dermestidae ; Trogoderma variabile ; pheromone ; isolation ; identification ; (Z)-14-methyl-8-hexadecenal ; aeration ; Porapak Q ; sex attractant
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Females of the dermestid beetle,Trogoderma variabile Ballion, exhibit a diel pattern of calling behavior. A potent sexual excitant and attractant for the male beetles can be collected on Porapak Q during aeration of female beetles, but cannot be detected in extracts of macerated females. The attractant has been identified as (Z)-14-methyl-8-hexadecenal. Of the five additional compounds previously identified as attractants in otherTrogoderma species, only two were found; (Z)-14-methyl-8-hexadecen-1-ol is present in extracts of macerated female beetles, but not in extracts of Porapak Q, and γ-caprolactone is present in extracts of Porapak Q. Three collection procedures were necessary to ensure that all the pheromone components had been isolated. Synthetic (Z)-14-methyl-8-hexadecenal elicits attraction and sexual arousal inT. Variabile males.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00994138
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 24
    Digitale Medien
    Digitale Medien
    Behavior and pheromone studies withAttagenus elongatulus Casey (Coleoptera: Dermestidae) (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 219-237 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Attagenus elongatulus ; Dermestidae ; pheromone ; behavior ; calling ; bioassay
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Males ofAttagenus elongatulus Casey responded to a source of female odor with a characteristic sequence of actions which included: extension of the antennae, elevation of the body by leg extension, rapid zig-zag running, and intermittent bobbing up and down. The courtship sequence also consisted of several activities and was usually followed by a typical copulatory act of less than 1-minute duration. Virgin females exhibited calling behavior which was associated with pheromone release. Female calling activity, female pheromone content, and male responsiveness followed a diurnal cycle with peak values occurring during the earlier hours of the 16L∶8D photoperiod. Quantitative bioassay indicated that a 50% male response level (RD50) occurred at ca. 0.014 female equivalent (FE) exposure.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00994148
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 25
    Digitale Medien
    Digitale Medien
    An unusual polyene from male stable flies (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 251-255 
    Details
    ISSN: 1573-1561
    Schlagwort(e): stable fly ; Stomoxys calcitrans (L.) ; pheromone ; sex pheromone ; polyene ; mating stimulant ; (Z,Z)-1,7,-13-pentacosatriene
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The major component of the cuticular lipids of male stable flies,Stomoxys calcitrans (L.), was identified as (Z,Z)-1,7,13-pentacosatriene. The identification was confirmed by synthesis. This material is of unknown biological function; it is apparently not produced by female stable flies.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988441
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 26
    Digitale Medien
    Digitale Medien
    Chemical basis for interspecific responses to sex pheromones ofTrogoderma species (Coleoptera: Dermestidae) (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 337-347 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Dermestidae ; Trogoderma granarium (khapra beetle) ; T. variabile ; T. glabrum ; T. inclusum ; pheromone ; (Z)- and (E)-14-methyl-8-hexadecenal ; interspecific response
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Interspecific responses among severalTrogoderma species have been correlated with their pheromone components. The most important component emitted by four of the species is (Z)- or (E)-14-methyl-8-hexadecenal, which is not detectable in extracts of macerated beetles. The response to macerated beetles is probably due to the corresponding alcohol and ester. The recency of common origin of seven species is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988449
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 27
    Digitale Medien
    Digitale Medien
    Kairomones and their use for management of entomophagous insects (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1323-1331 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Kairomone ; pheromone ; Trichogramma ; Heliothis zea
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Volatile chemicals emanating from an excretion (apparently meconium) and abdominal tips of femaleHeliothis zea (Boddie) moths mediated increased rates of parasitization ofH. zea eggs byTrichogramma pretiosum Riley. A blend of synthetic chemicals, consisting of hexadecanal, (Z)-7-hexadecenal, (Z)-9-hexadecenal, and (Z)-11-hexadecenal, which has been identified as the sex pheromone of and from the abdominal tip of femaleH. zea moths, also increased rates of parasitization ofH. zea eggs byT. pretiosum in greenhouse experiments. In addition, parasitization ofH. zea eggs by wildTrichogramma spp., in field plots of cotton,Gossypium hirsutum L., treated with a similar blend of chemicals, in Conrel fibers, was more than double that in untreated plots.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987765
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 28
    Digitale Medien
    Digitale Medien
    Electroantennogram responses ofScolytus multistriatus (Coleoptera: Scolytidae) to its pheromone components and to associated compounds (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1333-1344 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Scolytidae ; Scolytus multistriatus ; pheromone ; insect olfaction ; electroantennogram ; electrophysiology ; differential adaptation ; multistriatin ; 4-methyl-3-heptanol ; α-cubebene
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Electroantennograms were recorded fromScolytus multistriatus in response to 4-methyl-3-heptanol, the four geometric isomers of multistriatin, and cubeb oil. Charateristic dose-response curves for response amplitude and the time required for the voltage trace to return to 1/2 baseline (recovery rate) were established. Recovery rates were significantly more rapid following stimulation with 4-methyl-3-heptanol or cubeb oil than with the multistriatin isomers. At most intensities, α-multistriatin, the isomer that evokes behavioral response, gave significantly larger EAGs with significantly longer recovery rates than the other isomers. Results of differential adaptation experiments suggested that 4-methyl-3-heptanol interacted with the processes involving multistriatin and cubeb oil activity. However, cross-activity of acceptors for these compounds seems unlikely; single sensillum recordings are needed to ascertain the response spectra for individual receptor neurons.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01403097
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 29
    Digitale Medien
    Digitale Medien
    Frontalin in the male mountain pine beetle (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1399-1409 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Scolytidae ; Dendroctonus ponderosae ; pheromone ; frontalin ; exo-brevicomin ; Pinns contorta ; Pinus ponderosa
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Frontalin andexo-brevicomin were identified by GC-MS in air drawn over maleDendroclonus ponderosae Hopk. (MPB) from Oregon that had joined females for 1–2 days in the bark of lodgepole and ponderosa pine logs. Unfed males releasedexo- andendo-brevicomin but not frontalin. These three compounds were not detected in either unfed or fed females. Arrestment of males bytrans-verbenol and terpenes in an olfactory walkway was reduced by the addition of racemic frontalin; production of attractant chirps also diminished. Racemic frontalin also strongly reduced the aggregation of MPB in lodgepole and ponderosa pine stands to sticky traps baited with the aggregation pheromonetrans-verbenol and host terpenes; however, the function of the natural enantiomer of frontalin in MPB is unknown.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01403103
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 30
    Digitale Medien
    Digitale Medien
    Responses of the olfactory receptors ofScolytus scolytus (F.) (Coleoptera: Scolytidae) to the stereoisomers of 4-methyl-3-heptanol (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 477-492 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Scolytus scolytus ; Coleoptera ; Scolytidae ; pheromone ; 4-methyl-3-heptanol stereoisomer ; olfaction ; electrophysiology
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Electroantennogram (EAG) and single-cell recording techniques have been used to demonstrate the presence of separate receptors for (−)-threo- and (−)-erythro-4-methyl-3-heptanol on the antenna ofS. scolytus. The majority of single-cell recordings showed spikes of two different amplitudes. The cell giving spikes of larger amplitude responded to the (−)-threo stereoisomer while the cell with the small-amplitude spikes responded to (−)-erythro-4-methyl-3-heptanol. It is suggested that in most recordings the two cells are associated with a single sensillum basiconicum.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987796
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 31
    Digitale Medien
    Digitale Medien
    Hairpencil pheromone components of male oriental fruit moths,Grapholitha molesta (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 947-959 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Hairpencil ; pheromone ; Grapholitha molesta ; Lipidoptera ; Tortricidae ; Oriental fruit moth ; ethyltrans-cinnamate ; mellein ; methyl jasmonate ; methyl 2-epijasmonate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract MaleGrapholitha molesta hairpencil components are ethyltrans-cinnamate, mellein, methyl jasmonate, and methyl 2-epijasmonate. The natural behavioral effect elicited by hairpencil-displaying males during courtship in attracting sex-pheromone-releasing females from several centimeters away can be duplicated by mixtures of ethyltrans-cinnamate in various combinations with the other components.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987661
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 32
    Digitale Medien
    Digitale Medien
    Improved preparation of (E)-β-farnesene and its activity with economically important aphids (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1111-1117 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Aphids ; Myzus persicae ; Homoptera ; Aphidae ; pheromone ; alarm pheromone ; behavior ; (E)-β-farnesene ; nerolidol ; dehydration
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract (E)-β-Farnesene, the major component of the alarm pheromone of many aphids, is prepared in 65% yield by passing commercial nerolidol through an evacuated column of alumina, treated with pyridine, at 200° C. The product is stored without air and applied to aphids as vapor at low speed (ca. 230 mm/sec) in air or nitrogen. The response of eight economically important aphid species was assessed in the laboratory; over 90% ofMyzus persicae responded in a large scale trial.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00986981
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 33
    Digitale Medien
    Digitale Medien
    Occurrence of 2,6-dichlorophenol in hard ticks,Hyalomma dromedarii andHyalomma anatolicum excavatum, and its role in mating (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 1543-1549 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Hyalomma dromedarii ; Hyalomma anitolicum excavatum ; ticks ; Acarina ; Ixodidae ; pheromone ; sex pheromone ; 2,6-dichlorophenol ; phenol
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract 2,6-Dichlorophenol (2,6-DCP) is the major volatile sex pheromone component in the extracts ofHyalomma dromedarii (35 ng/female) andHyalomma anatolicum excavalum (20 ng/female). The GC fraction containing essentially pure 2,6-DCP, as well as an equal amount of synthetic 2,6-DCP, elicits from the male of each species a hierarchy of responses culminating in attempted copulation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988420
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 34
    Digitale Medien
    Digitale Medien
    Sensitivity of antennae of male and femaleIps paraconfusus (Coleoptera: Scolytidae) to its pheromone and other behavior-modifying chemicals (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 585-606 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Scolytidae ; bark beetle ; Ips paraconfusus ; pheromone ; enantiomer ; electrophysiology ; electroantennogram ; interruption ; allomone
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The antennal sensitivities of both male and femaleIps paraconfusus were found generally to be greatest for conspecific aggregation pheromones (ipsdienol, ipsenol); intermediate for an additional conspecific pheromone (cis-verbenol), an aggregation synergist (2-phenylethanol), and pheromones/allomones of sympatric species (trans-verbenol, verbenone, and frontalin); and lowest for both host terpenes (alpha-pinene and myrcene) and other bark beetle-produced odorants (exo-brevicomin and linalool). Of the enantiomeric compounds tested, antennae of both sexes did not differ in sensitivity between thetrans-verbenol enantiomers at low dosage levels; but at higher dosages, the conspecific-produced enantiomer, (1R,4S,5R)-(+)-trans-verbenol, elicited larger mean EAG responses than its antipode, (1S,4R, 5S)-(−)-trans-verbenol. At the mid-dosage range, female antennae tended to be slightly more responsive to (S)-(−)-verbenone than to (R)-(+)-verbenone, while male antennae were equally responsive to stimulations by either verbenone enantiomer. In field bioassays there was a large and significant reduction in trap catches ofI. paraconfusus on traps where the (S)-(−)- or (R)-(+)-enantiomers of verbenone were evaporated beside logs containing boring conspecific males. Only when the (S)-(−)-enantiomer of verbenone was evaporated beside logs containing boring males did the sex ratio ofI. paraconfusus trapped shift from female-dominated to male-dominated attraction. Thus both physiological and behavioral data suggest a differential chiral sensitivity of female beetles for the verbenone enantiomers. The relative sensitivities between different chiral compounds derived from one or the other of the common precursoral host terpenes, (S)-(−)- and (R)-(+)alpha-pinene or myrcene, are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990411
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 35
    Digitale Medien
    Digitale Medien
    Field bioassay ofexo- andendo-brevicomin withDendroctonus ponderosae in lodgepole pine (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 701-707 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Scolytidae ; Dendroctonus ponderosae ; pheromone ; exo-brevicomin ; endo-brevicomin ; Pinus contorta
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Bothexo- andendo-brevicomin reduced the response of flyingDendroctonus ponderosae (Coleoptera: Scolytidae) to an attractant composed oftrans-verbenol and terpenes or oftrans- andcis-verbenol and terpenes in a stand ofPinus contorta var.murrayana. These data suggest that racemicexo- andendo-brevicomin may interrupt aggregation in populations of mountain pine beetle colonizing lodgepole pine; functions of the natural chiral compounds are unknown.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988311
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 36
    Digitale Medien
    Digitale Medien
    A reappraisal of insect flight towards a distant point source of wind-borne odor (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1207-1215 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Insect attraction ; orientation ; anemotaxis ; chemotaxis ; odor plume ; odor trail ; pheromone ; wind ; turbulence
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract This communication reappraises the behavioral evidence concerning insect flight toward a point source of wind-borne odor in the light of meteorological information not yet considered in this context. The horizontal tracks of puffs of smoke from a generator in the open air were videorecorded and found to continue along nearly straight lines from the source for at least 25 m, while the shifting wind direction caused the plume formed by the succession of puffs to “snake” to and fro. It is inferred from this and much previous work that within such a distance the wind will be aligned on the source of any wind-borne odor wherever the odor can be detected. This being so, a strategy of finding the odor source by flying roughly upwind on meeting the odor, but holding station against the wind with or without casting across it on losing the odor (odor-modulated anemotaxis), seems likely to be highly adaptive, whereas a strategy of flying along the plume (“odor-trail following”) seems unlikely since it would often take the flier in “wrong” directions and would be more disrupted by turbulence.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990753
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 37
    Digitale Medien
    Digitale Medien
    Dependence of necrophoric response to oleic acid on social context in the ant,Pogonomyrmex badius (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 105-111 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Pogonomyrmex badius ; Hymenoptera ; Formicidae ; oleic acid ; social context ; midden ; pheromone ; harvester ant ; necrophoric
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The response of the southern harvester ant,Pogonomyrmex badius, to oleic acid was found to depend on social context. Social context was specified as the number of ants engaging in each of five categories of behavior. When a large percentage of the colony is doing midden work or nest maintenance, papers treated with oleic acid are taken to the midden, as previously reported. However, when a large percentage of the colony is foraging or convening, treated papers are taken into the nest as if they were food items.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987774
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 38
    Digitale Medien
    Digitale Medien
    Isoprenoids from metathoracic scent gland of cotton seed bug,Oxycarenus hyalinipennis (Costa) (Heteroptera: Lygaeidae) (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 1397-1412 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Scent gland ; defensive secretion ; pheromone ; Oxycarenus hyalinipennis ; Heteroptera ; Lygaeidae ; cotton seed bug ; monoterpenoids ; sesquiterpenoids ; α-pinene ; oct-2-enal ; oct-2-enylactate ; sexual maturation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract This paper gives the results of a gas chromatographic-mass spectrometric investigation on the composition of the scent oils from the metathoracic scent gland ofOxycarenus hyalinipennis (Costa). It reports the presence of at least 18 different compounds in the scent oils: fatty aliphatic materials comprising the C6 and C8 alk-2-enals, 4-oxo-alk-2-enals, and alk-2-enyl acetates; monoterpenoids comprising α-pinene, limonene, and 1,8-cineole (eucalyptol); and several sequiterpenoids. Observations made during gland reservoir filling indicate that the secretion from the gland tubules undergoes a dramatic change in composition within the first day or so after adult emergence. The newly formed secretion is dominated by fatty aliphatic materials while that formed later is dominated by the isoprenoids. When fully distended with secretion, the lateral scent reservoir contains isoprenoids and little else. It is an interesting feature of the metathoracic system inOxycarenus that oct-2-enyl acetate persists together with oct-2-enal as a major component in the scent oil in the median reservoir. An assessment of the possible biological significance of the chemical findings is attempted.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990746
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 39
    Digitale Medien
    Digitale Medien
    Isolation and identification of two macrolide pheromones from the frass ofCryptolestes ferrugineus (Coleoptera: Cucujidae) (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 451-474 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Cryptolestes ferrugineus ; rusty grain beetle ; aggregation ; pheromone ; macrolide ; (E,E)-4,8-dimethyl-4,8-decadien-10-olide ; (3Z,11S)-3-dodecen-11-olide ; (Z,Z)-3,6-dodecadien-11-olide ; (Z)-5-tetradecen-13-olide ; 11-dodecanolide ; 4-nonanolide ; Coleoptera ; Cucujidae
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Two synergistic macrolide aggregation pheromones were isolated from Porapak Q-trapped volatiles obtained from the frass ofCryptolestes ferrugineus (Stephens). These compounds were identified as (E,E)-4,8-dimethyl-4,8-decadien-10-olide (I) and (3Z,11S)-3-dodecen-11-olide (II) and given the trivial names ferrulactone I and II, respectively. Analysis of captured volatiles from separated male and female adults disclosed that the pheromones are male-produced. Additional macrolides were identified in frass volatiles, but were devoid of any pheromonal activity. The structures of I and II were confirmed by comparison with synthetic materials.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990219
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 40
    Digitale Medien
    Digitale Medien
    Synthesis of δ-lactonic pheromones ofXylocopa hirsutissima andVespa orientalis and an allomone of some ants of genusCamponotus (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 703-714 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Xylocopa hirsutissima ; Vespa orientalis ; Camponotus ; Hymenoptera ; Xylocopidae ; Vespidae ; Formicidae ; pheromone ; allomone ; chemical preparation ; cis-3,6-dimethyltetrahydro-2-pyrone ; 6-n-undecyltetrahydro-2-pyrone ; 6-n-pentyl-5,6-dihydro-2-pyrone ; lactones
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Simple preparations ofcis-3,6-dimethyltetrahydro-2-pyrone, VII,6-n-undecyltetrahydro-2-pyrone, XVIIb, and 6-n-pentyl-5,6-dihydro-2-pyrone, XVIa, have been achieved. Products VII and XVIIb, respectively, are the major constituent of the pheromonal blend of a carpenter bee (Xylocopa hirsutissima) and the pheromone of the queens of the Oriental hornet (Vespa orientalis). The lactone XVIa is a suspected defensive allomone in two species of formicine ants of the genusCamponotus. All three compounds have been prepared from dehydroacetic acid, I, a cheap and industrially available starting material.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988777
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 41
    Digitale Medien
    Digitale Medien
    Characterization of a sex pheromone in the jird (Meriones tristrami) (1983)
    Springer
    Journal of chemical ecology 9 (1983), S. 775-783 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Ventral sebaceous gland ; gland ; sex attractant ; pheromone ; rodent behavior ; gerbils ; acetates ; jirds ; Meriones tristrami
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The Israeli jird (Meriones tristrami) is a semidesert crecitid rodent found throughout the Mid-East. Jirds use a midventral sebaceous gland to scent-mark objects, the ground, and conspecifics. Volatile compounds from the male gland extract were found to containn-aliphatic acetates by thin-layer chromatography, gas chromatography, and mass spectroscopy. In a digital olfactometer, female jirds demonstrated preference for male glandular extract and many of then-aliphatic acetates. Other biologically important odors were also presented to the female jirds. Behavioral observations combined with olfactory bioassays implicate the involvement of the ventral sebaceous gland in jird sexual behavior.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988782
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 42
    Digitale Medien
    Digitale Medien
    A reexamination of the negative assortative mating phenomenon and its underlying mechanism inDrosophila melanogaster (1984)
    Springer
    Behavior genetics 14 (1984), S. 45-61 
    Details
    ISSN: 1573-3297
    Schlagwort(e): assortative mating ; polymorphism ; partner selection ; pheromone ; behavior ; Drosophila
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Psychologie
    Notizen: Abstract Averhoff and Richardson [(1974)Behav. Genet. 4:207–225] reported a trend toward negative assortative mating inDrosophila melanogaster during the course of inbreeding. These authors proposed that the underlying mechanism was based on pheromone polymorphism and male selection. Mass mating experiments were carried out to verify their hypothesis, detailed behavior observations were made to identify the underlying mechanism, and sex pheromone composition and variation were examined by using gas chromatography-mass spectrometry analysis. The results showed that negative assortative mating is not a general phenomenon. Although male pheromones are probably polymorphic, female pheromones are not. We found no evidence for male selection as predicted by Averhoff and Richardson. It is argued that the most parsimonious mechanism underlying negative assortative mating is similar to one proposed by Bryant [(1979)Behav. Genet. 9:249–256], which was based on interstrain differences in female reluctancy and male vigor.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01066068
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 43
    Digitale Medien
    Digitale Medien
    Diphenyl thiovioluric acid: A new extractive indicator for iron(II) (1976)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 279 (1976), S. 206-206 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Eisen(II) mit Diphenylthioviolursäure als Indicator ; Volumetrie ; EDTA
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00424113
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 44
    Digitale Medien
    Digitale Medien
    Beiträge zur titrimetrischen Bestimmung von dimeren Hydroxyaldehyden (1975)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 276 (1975), S. 201-204 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Glykolaldehyd, Glycerinaldehyd, Hydroxyaldehyden ; Volumetrie ; Dimere
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Es wurden die Möglichkeiten für die titrimetrische Bestimmung von dimerem Glykolaldehyd (Fp: 94–96° C) und dl-Glycerinaldehyd (Fp: 138–141° C) untersucht. Die systematischen Fehler der auf Grund verschiedener funktioneller Gruppen durchführbaren Messungen sind von der Stabilität ihrer cyclischen Halbacetale sowie von den ihrer Depolymerisation folgenden weiteren Gleichgewichten bestimmt. Das aus dem dl-Glycerinaldehyd gebildete Halbacetal besitzt höhere Stabilität als dasjenige aus dem Glykolaldehyd. Mit der Hydrogensulfit-Methode werden 95–96%, mit der Hydroxylamin-Methode dagegen 98–99% vom wahren Wert gefunden. In Wasser gelöst zersetzt sich der Glykolaldehyd verhältnismäßig rasch, und das Gleichgewicht kann durch beide Aldehydreaktionen quantitativ gegen die Monomerenform verschoben werden. Unsere Untersuchungen ergaben, daß die Hydroxylamin-Methode zur Bestimmung der in Form cyclischer Halbacetale kristallisierenden, dimeren Hydroxyaldehyde Vorteile gegenüber der Hydrogensulfit-Methode bietet.
    Notizen: Abstract Possibilities for the titrimetric determination of dimeric glycolaldehyde (m.p. 94–96° C) and dl-glyceraldehyde (m.p. 138–141° C) have been investigated. The systematic errors based on different functional groups depend on the stability of the cyclic semiacetals and on the subsequent equilibria established after their depolimerisation. The semiacetal of dl-glyceraldehyde is more stable than that of glycolaldehyde. 95–96% and 98–99% of the real content were found by the hydrogensulphite and hydroxylamine methods, respectively. Glycolaldehyde decomposes rather quickly in aqueous solution and the equilibrium can be shifted towards the monomeric form by both the aldehyde reactions. The hydroxylamine method proved to be more advantageous for the determination of the dimeric hydroxyaldehydes, which cristallise in the form of cyclic semiacetals.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00437567
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 45
    Digitale Medien
    Digitale Medien
    Titrimetric determination of mercaptans with trivalent cobalt (1976)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 278 (1976), S. 128-128 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Mercaptanen mit Kobalt(III) ; Volumetrie
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00432575
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 46
    Digitale Medien
    Digitale Medien
    Assay of mixtures of hydrazine and other nitrogen bases by thermometric titrimetry (1976)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 280 (1976), S. 373-376 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Hydrazin, Ammoniak, Anilin, Hydroxylamin, Thiocyanat, Dimethylhydrazin im Gemisch ; Volumetrie ; thermometrisch
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Summary Binary mixtures of hydrazine and one of the following N-containing bases: ammonia, aniline, hydroxylamine, thiocyanate and unsymmetrical dimethyl hydrazine have been assayed thermometrically. The titrations are based both on the basic and the reducing properties of the compounds. For example, whilst for mixtures of hydrazine and ammonia, the total base content is determined by an acid/base titration, and the hydrazine component is determined by oxidation with bromate ion; for mixtures containing aniline or hydroxylamine, serial titration with bromate ensures that all the hydrazine is oxidised before the onset of oxidation of the other component. Mixtures of hydrazine and UDMH have been assayed in both aqueous and non-aqueous media and a comparison of results has been reported. The main advantage of the proposed methods is that they can be applied to industrial samples, which would render other methods impossible.
    Notizen: Zusammenfassung Binäre Mischungen von Hydrazin mit Ammoniak, Anilin, Hydroxylamin, Thiocyanat und asymmetrischem Dimethylhydrazin wurden thermometrisch analysiert. Sowohl die basischen als auch die reduzierenden Eigenschaften des Hydrazins bilden die Grundlage der Titrationen. Zum Beispiel wird im Gemisch Hydrazin/Ammoniak der Gesamtbasengehalt acidimetrisch ermittelt und die Hydrazinkomponente durch Oxydation mit Bromat bestimmt. Im Gemisch Anilin/Hydrazin oder Hydroxylamin/Hydrazin wird mit Bromat zunächst alles Hydrazin oxydiert, bevor die Oxydation der zweiten Komponente einsetzt. Mischungen von Hydrazin mit asym. Dimethylhydrazin werden in wäßrigem und auch in nichtwäßrigem Medium ausgeführt und die Ergebnisse verglichen. Der Hauptvorteil der beschriebenen Verfahren besteht darin, daß auch industrielle Proben untersucht werden können, bei denen andere Verfahren versagen würden.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00439074
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 47
    Digitale Medien
    Digitale Medien
    Titrimetric determinations of cryptands and cryptates (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 298 (1979), S. 358-362 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best von Kryptanden, Kryptaten ; Volumetrie ; HCl, Metall-Standardlösung, Standardzugabeverfahren
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Summary Using bromocresol green as a visual endpoint indicator solutions of the cryptands [2.2.1] and [2.2.2] can be determined by titration with HCl in the concentration range of 10−1–10−3 M with relative standard deviations of 0.2–0.4 %. If both cryptand and cryptate are present in one solution, then the sum of them can be determined titrimetrically in the same way. It is also possible to determine the contents of [2.2.1] and [2.2.2] by using a calcium or barium standard solution and the unknown cryptand solution as a titrant. By evaluation of the pH-curve thus obtained, the endpoint of the titration can be determined. In the concentration range of 10−1–10−2 M relative standard deviations of about 0.5% are obtained. [2.2.1] cryptand solutions are determined by using the standard addition technique of Gran with a calcium chloride solution. An ion-selective electrode is used as a probe for calcium ions. If this method is applied, the relative standard deviation in the range of 10−2–10−4 M solutions is approximately 3%. With this technique cryptand can be analysed even when cryptate is present in the solution.
    Notizen: Zusammenfassung Bei Verwendung von Bromkresolgrün als visueller Endpunktindicator kann man [2.2.1] und [2.2.2] Kryptandlösungen im Konzentrationsbereich 10−1–10−3 M mit relativen Standardabweichungen von 0,2–0,4% mit HCl titrieren. Wenn in einer Lösung sowohl Kryptand als auch Kryptat vorhanden ist, ist die Summe beider Substanzen auf die gleiche Weise bestimmbar. [2.2.1] und [2.2.2] können auch dadurch bestimmt werden, daß eine Calciumbzw. Barium-Standardlösung mit der Kryptandlösung unbekannter Konzentration titriert wird. Die Auswertung der dabei erhaltenen pH-Kurve ergibt den Titrationsendpunkt, wobei hierdurch im Konzentrationsbereich von 10−1–10−2 M Kryptandlösungen relative Standardabweichungen von etwa 0,5% erreicht werden. [2.2.1] Kryptandlösungen werden außerdem mit der Standard-Additionstechnik nach Gran bestimmt, wobei eine calciumselektive Elektrode als Indicatorelektrode dient. Dabei werden im Konzentrationsbereich von 10−2–10−4 M relative Standardabweichungen von etwa 3 % erhalten. Diese Methode kann auch überschüssigen Kryptand neben Kryptat bestimmen.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00482014
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 48
    Digitale Medien
    Digitale Medien
    Titrimetry in a continuous flow system (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 293 (1978), S. 413-415 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Sulfat in Umweltmaterial ; Volumetrie ; Durchflußsystem, Dimethylsulfonazo als Indicator
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00471465
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 49
    Digitale Medien
    Digitale Medien
    Über die Zusammensetzung des (1∶2)-Bor-Curcumin-Chelates »Rosocyanin« (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 295 (1979), S. 269-270 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Untersuchungen an Bor-Curcumin-Chelaten ; Thermodifferentialanalyse ; Volumetrie ; DMSO
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00481491
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 50
    Digitale Medien
    Digitale Medien
    Bestimmung von Wasserspuren in Chlorcyan durch Karl-Fischer-Titration (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 295 (1979), S. 380-381 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Wasser in Chlorcyan ; Volumetrie ; Karl Fischer, Ethylenglykol
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Es wird eine Methode zur Bestimmung von Wasserspuren in verflüssigtem Chlorcyan beschrieben. Nach Hinzufügen von Chlorcyan zu Ethylenglykol wird das Chlorcyan durch Verdampfen entfernt. Das durch das Ethylenglykol zurückgehaltene Wasser wird mit Karl-Fischer-Lösung titriert. Die Standardabweichungen sind im Bereich von 0,004–0,007 (0,1–0,4 g H2O/100 ml ClCN).
    Notizen: Summary A description is given of a method for determining traces of water in liquefied cyanogen chloride. Following the addition to ethylene glycol, cyanogen chloride is removed by evaporation. The water retained by ethylene glycol is then titrated by Karl-Fischer solution. Standard deviations are in the range of 0.004–0.007 (0.1–0.4 g H2O/100 ml ClCN).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00539708
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 51
    Digitale Medien
    Digitale Medien
    Delafield's haematoxylin as a new indicator in the nitritometric determination of aromatic primary amines (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 292 (1978), S. 414-414 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Aminen, aromat. primäre ; Volumetrie ; Nitrit, Hämatoxylin als Indicator
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00481568
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 52
    Digitale Medien
    Digitale Medien
    Titrimetry in continuous flow systems (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 298 (1979), S. 155-156 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. der Alkalität von Umweltmaterial ; Volumetrie ; Durchflußsystem
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00521658
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 53
    Digitale Medien
    Digitale Medien
    Zur Anwendung der magnetischen Titration (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 291 (1978), S. 39-41 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Nickel, Jodid ; Volumetrie ; magnetisch, Meßanordnung
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Eine einfache Meßanordnung für die magnetische Titration wird vorgestellt. Anhand der Umsetzung von [Ni(NH3)6]2+ mit CN− und von J− mit Cr2O7 2− wird gezeigt, daß sich dieses Meßverfahren unter bestimmten Voraussetzungen in der quantitativen Analyse einsetzen läßt. Zur Auswertung der Titrationskurven wird eine Auftragung der Kraft im Magnetfeld gegen das reziproke Gesamtvolumen vorgeschlagen.
    Notizen: Summary A simple measuring equipment for magnetic titration is described. On the basis of the reaction of [Ni(NH3)6]2+ with CN− and J− with Cr2O7 2− it is shown that under certain conditions this method is useful in quantitative analysis. For evaluation of the titration curves, a plot of the force in the magnetic field against the reciprocal of the total volume is proposed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00468551
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 54
    Digitale Medien
    Digitale Medien
    Vollautomatische titrimetrische Einzelanalyse in der Praxis (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 297 (1979), S. 126-131 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Volumetrie ; Einzelproben, automatisches Analysengerät
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Voraussetzungen einer effektiven Automation der individuellen titrimetrischen Analyse werden dargestellt. Ein nach diesen Gesichtspunkten entwickeltes Gerät wird beschrieben und seine Anwendung in den Gebieten der Farbstoffe, Agrochemikalien, Additiven und Pharmaka aufgezeigt.
    Notizen: Summary Criteria for effective automation of individual titrimetric analyses are presented. Based on these, an automatic titration system has been developed which is described. Its performance and its applicability in the field of dyestuffs, agrochemicals, additives and pharmaceuticals has been investigated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00483592
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 55
    Digitale Medien
    Digitale Medien
    Volumetric determination of strontium in strontium ferrites (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 297 (1979), S. 159-159 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Strontium in Strontiumferriten ; Volumetrie ; Ausfällung bzw. Maskierung von Eisen
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00483598
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 56
    Digitale Medien
    Digitale Medien
    Quantitative Mikrobestimmung von Chlorid (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 298 (1979), S. 43-43 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Chlorid ; Volumetrie ; Dithizon, AgCl
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00470049
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 57
    Digitale Medien
    Digitale Medien
    Direct oxidimetric determination of indigo with vanadate (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 298 (1979), S. 159-159 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Indigo und Vanadat ; Volumetrie ; photometr. Endpunkt
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00521663
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 58
    Digitale Medien
    Digitale Medien
    Zerstörungsfreie Ultramikroanalyse archäologischer Fundstücke (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 298 (1979), S. 269-272 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Analyse von Bronze in archäolog. Material ; Volumetrie ; Korundstäbchen
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung In Fortsetzung einer früheren Arbeit über Kupfer und Messing wird in dieser Mitteilung die Zinnbestimmung in Abstrichen beschrieben. Metazinnsäure wird durch Filtration mit Hilfe eines besonderen Gerätes abgetrennt, zu SnS2 umgesetzt, in HCl gelöst und die Sn-Bestimmung wird dann durch Rücktitration eines EDTA-Überschusses mit Zinksulfat durchgeführt.
    Notizen: Summary In continuation of an earlier paper on copper and brass this communication describes the determination of tin in streak samples. Metastannic acid is isolated by filtration using a specially designed apparatus. It is converted to SnS2, dissolved in HCl and Sn is determined by back-titration of excess EDTA with zink sulphate.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00510691
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 59
    Digitale Medien
    Digitale Medien
    Karl Fischer-Reagentien ohne Pyridin (6) (1982)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 310 (1982), S. 423-426 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Wasser in Ameisensäure, Essigsäure, Carbonsäuren ; Volumetrie ; Karl Fischer-Reagentien ohne Pyridin
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung In den meisten Carbonsäuren verläuft die Wasserbestimmung störungsfrei. Ameisensäure neigt stark zur Veresterung, Essigsäure und einige andere Säuren nur bei größeren Einwaagen. Die Veresterung kann durch die Registrierung des Titrationsverlaufs nachgewiesen werden. Durch die graphische Auswertung der Titrationskurven wird der tatsächliche Wassergehalt ermittelt.
    Notizen: Summary In most carboxylic acids water can be determined without any interferences. Esterification is strong with formic acid, while acetic acid and other acids tend to get esterified only at higher concentrations. Automatic registration during the titration process allows to determine esterification. The true water content is obtained by graphic evaluation of the titration curves.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00483018
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 60
    Digitale Medien
    Digitale Medien
    Direct volumetric determination of sulphonamides by bromination with N-bromosuccinimide (1975)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 277 (1975), S. 125-125 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Sulfonamiden mit N-Bromsuccinimid ; Volumetrie
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00602083
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 61
    Digitale Medien
    Digitale Medien
    Field method for the volumetric determination of fluoride in water using SPADNS and thorium nitrate (1975)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 277 (1975), S. 207-207 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Fluorid in Wasser ; Volumetrie ; SPADNS und Thoriumnitrat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00462241
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 62
    Digitale Medien
    Digitale Medien
    Bestimmung von Mikromengen Kobalt als Pyrrolidindithiocarbaminat unter Verwendung der Reaktion von Jod mit Natriumazid (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 296 (1979), S. 160-160 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Kobalt mit Pyrrolidindithiocarbaminat ; Volumetrie ; Jod-Azid-Reaktion
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00495183
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 63
    Digitale Medien
    Digitale Medien
    A critical examination of the salicylaldehyde method for the determination of primary amines in the presence of secondary amines (1979)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 296 (1979), S. 396-399 
    Details
    ISSN: 1618-2650
    Schlagwort(e): Best. von Aminen mit Salicylaldeyd ; Volumetrie ; primäre, sekundäre, krit. Untersuchung
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Summary The salicylaldehyde method for the differentiation of primary and secondary amines in mixtures has been critically evaluated. This method yields best results in acetonitrile. In mixtures of amines one can expect high results for the primary amine with correspondingly low results for the secondary amine. Corrections can be made with known mixtures of the amines.
    Notizen: Zusammenfassung Das Salicylaldehydverfahren zur Unterscheidung primärer und sekundärer Amine im Gemisch wurde kritisch bewertet. Die besten Ergebnisse wurden in Acetonitril erhalten. In Gemischen sind für primäre Amine zu hohe und für sekundäre entsprechend zu niedrige Werte zu erwarten. Mit Hilfe bekannter Mischungen können Korrekturen durchgeführt werden.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00479983
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 64
    Digitale Medien
    Digitale Medien
    Phenols as pheromones of ixodid ticks: A general phenomenon? (1975)
    Springer
    Journal of chemical ecology 1 (1975), S. 501-509 
    Details
    ISSN: 1573-1561
    Schlagwort(e): ticks ; ixodid ticks ; pheromone ; Rhipicephalus appendiculatus ; Rhipicephalus pulchellus ; phenol ; cresol ; 2,6-dichlorophenol ; salicylaldehyde
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Extracts of femaleRhipicephalus appendiculatus Neumann andR. pulchellus Neumann, vectors or potential vectors of East Coast fever, have yielded phenol andp-cresol. The same phenols have been found in five additional species of hard ticks, three of which also contained 2,6-dichlorophenol. Salicylaldehyde appeared as another phenolic component in four of these species. On the basis of this information- and of the rather limited literature available, it appears that ixodid ticks may generally utilize simple phenols as attractants. Behavioral observations suggest a role of the phenols in the meeting of the sexes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988590
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 65
    Digitale Medien
    Digitale Medien
    Identification of new sex pheromone components inTrichoplusia ni, predicted from biosynthetic precursors (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1309-1323 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Lepidoptera ; Noctuidae ; Trichoplusia ni ; pheromone ; (Z)-7-dodecenyl acetate ; (Z)-5-dodecenyl acetate ; 11-dodecenyl acetate ; (Z)-7-tetradecenyl acetate ; (Z)-9-tetradecenyl acetate ; biosynthesis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract In addition to the previously identified components (Z)-7-dodecenyl acetate and dodecyl acetate, sex pheromone glands ofTrichoplusia ni release (Z)-5-dodecenyl acetate, 11-dodecenyl acetate, (Z)-7-tetradecenyl acetate, and (Z)-9-tetradecenyl acetate. Bioassays in a flight tunnel showed that a synthetic blend of these six compounds elicited complete flights to the source from 95% of the males tested and elicited hairpenciling responses at the end of the flights from 88% of the males tested. This blend was not significantly different from intact pheromone glands, which elicited complete flights to the source from 98% of the males tested and hairpenciling responses from 91% of the males tested. In contrast, the previously identified two-component blend elicited significantly fewer complete flights to the source (33%) and did not elicit hairpenciling responses from any of the males tested. The search for additional sex pheromone components was prompted by our previous identification of unusual fatty acyl moieties in the gland that seemed to be possible biosynthetic intermediates.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988113
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 66
    Digitale Medien
    Digitale Medien
    ACaenorhabditis elegans dauer-inducing pheromone and an antagonistic component of the food supply (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1265-1280 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Caenorhabditis elegans ; pheromone ; nematode ; dauer larva ; development
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The free-living soil nematodeCaenorhabditis elegans forms a nonfeeding dispersal stage at the second molt called the dauer larva when exposed to environmental cues indicating crowding and limited food. An improved bioassay, tenfold more sensitive than that used previously, has been used in the characterization of the two chemical cues which act competitively in controlling this developmental process. The pheromone concentration provides a measure of the population density; it enhances dauer larva formation, and inhibits recovery (exit) from the dauer stage. The pheromone is a family of related molecules which are nonvolatile, very stable, and possess physical and Chromatographie properties similar to those of hydroxylated fatty acids and bile acids. A food signal, with effects on development opposite those of the pheromone, is produced by bacteria, and is also present in yeast extract. In contrast to the pheromone, the food signal is a labile substance which is neutral and hydrophilic.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988553
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 67
    Digitale Medien
    Digitale Medien
    An economical synthesis of the major sex attractant of the oak leaf roller—cis-10-tetradecenyl acetate (1975)
    Springer
    Journal of chemical ecology 1 (1975), S. 317-322 
    Details
    ISSN: 1573-1561
    Schlagwort(e): synthesis ; cis-10-tetradecenyl acetate (I) ; Archips semiferanus ; oak leaf roller ; sex attractant ; pheromone
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The major sex attractant of the oak leaf roller (Archips semiferanus Walker),cis-10-tetradecenyl acetate (I), was synthesized in 55–62% overall yield by a highly economical route from inexpensive azelaic acid (II).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988833
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 68
    Digitale Medien
    Digitale Medien
    Studies on the isolation and bioassay of the sex pheromone of the drugstore beetle,Stegobium paniceum (Coleoptera: Anobiidae) (1975)
    Springer
    Journal of chemical ecology 1 (1975), S. 413-422 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Stegobium paniceum ; pheromone ; sex attractant ; drugstore beetle ; insect behavior ; stored-product insects
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Females ofStegobium paniceum (L.) produce a sex pheromone that causes an excitation and attraction of the males. Male response was highest 5–12 days after adult emergence. Pheromone titer of unmated females increased steadily after 1 day, reached a plateau after 5 days, and continued until at least 14 days. Mature males showed a threshold responsiveness of 3 × 10−7 μg pheromone. The pheromone titer per female ranged from 50 to 200 ng. On the basis of a high-resolution mass spectrum the empirical formula of the pure isolated pheromone molecule was determined to be C13H20O3. The pheromone was further defined by its Chromatographic behavior and spectroscopic properties.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988582
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 69
    Digitale Medien
    Digitale Medien
    Demonstration of sex pheromones in caddisflies (Trichoptera) (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 171-175 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Aquatic insects ; attractant ; caddisfly ; Gumaga ; odor ; pheromone ; scent ; Sericostomatidae ; sex pheromone ; Trichoptera
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Field tests with live, caged females and whole-body extracts of females of the caddisflyGumaga griseola (McLachlan) (Trichoptera: Sericostomatidae) demonstrate, for the first time, the existence of a chemically mediated sexual communication system in this insect order. Both live females and extracts are significantly more attractive to conspecific males than either empty control traps or traps baited withGumaga nigricula (McLachlan) females. Anatomical structures suggest that semiochemicals are widespread in Trichoptera.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987654
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 70
    Digitale Medien
    Digitale Medien
    Attractive and inhibitory pheromones produced in the bark beetle,Dendroctonus brevicomis, during host colonization: Regulation of inter- and intraspecific competition (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 861-877 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; Scolytidae ; Cleridae ; Dendroctonus brevicomis ; Enoclerus lecontei ; Pinus ponderosa ; bark beetle ; exo-brevicomin ; frontalin ; verbenone ; trans-verbenol ; ipsdienol ; aggregation ; pheromone ; competition
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Quantities of attractive (exo-brevicomin and frontalin) and inhibitory (trans-verbenol, verbenone, and ipsdienol) pheromones were monitored in both sexes ofDendroctonus brevicomis during their colonization of a ponderosa pine. Verbenone was found in males in the greatest amounts at the time of landing, and it declined more rapidly than the other pheromones in either sex. The amounts of frontalin andexo-brevicomin in males and females, respectively, increased after initial boring within the host but began to decline after mating. The quantity oftrans-verbenol in both sexes (females had significantly more) declined more gradually thanexo-brevicomin, frontalin, and verbenone. Ipsdienol was found only in males during the initial stages of attack when encountering the resin. It is suggested that along with a general decline in all pheromonal components, a sufficient change in the ratio of the attractive pheromones to an inhibitory pheromone,trans-verbenol, may play a role in termination of aggregation.trans-Verbenol may also function along with verbenone and ipsdienol in limiting the density of attack and thus intraspecific competition. These inhibitory pheromones also appear to cause several competing species of bark beetle to avoid landing in areas infested withD. brevicomis, even when their own pheromone is present.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987969
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 71
    Digitale Medien
    Digitale Medien
    A chemical trail factor from the silk of the eastern tent caterpillarMalacosoma americanum (Lepidoptera: Lasiocampidae) (1976)
    Springer
    Journal of chemical ecology 2 (1976), S. 187-193 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Malacosoma americanum ; tent caterpillar ; chemical trail substance ; pheromone ; trail-following behavior
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The leaf-feeding larvae of the eastern tent caterpillarMalacosoma americanum (Fabricius) follow silk trails laid down on branches leading from their communal tent to distant foraging sites. The response of colonies reared in the laboratory under seminatural conditions to silk trails washed in methylene chloride and to chemical trails prepared from a solvent extract of their tent or trail silk, showed that one or more soluble components of their trail is essential to the elicitation of the following response. The demonstrated ability of the caterpillars to distinguish between old and newly reinforced silk trails most likely occurs in response to a temporal change in the detectable chemical properties of their trail.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987741
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 72
    Digitale Medien
    Digitale Medien
    Terminology of chemical releasing stimuli in intraspecific and interspecific interactions (1976)
    Springer
    Journal of chemical ecology 2 (1976), S. 211-220 
    Details
    ISSN: 1573-1561
    Schlagwort(e): chemical ecology ; hormone ; pheromone ; allomone ; kairomone ; synomone ; apneumone ; chemical communication
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The terminology of chemical releasing stimuli is examined in an attempt to reduce some apparent confusion. Two new classes of interspecific chemical signals, synomone and apneumone, are proposed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987744
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 73
    Digitale Medien
    Digitale Medien
    Deterrence of repeated oviposition by fruit-marking pheromone inCeratitis capitata (Diptera: Tephritidae) (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 55-63 
    Details
    ISSN: 1573-1561
    Schlagwort(e): pheromone ; Ceratitis capitata ; oviposition deterrent ; laboratory insect quality ; Tephritidae
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract During ovipositor dragging on the fruit surface following egg laying in hawthorne fruit,Ceratitis capitata (Wiedemann) females deposit an unidentified pheromone that deters repeated oviposition attempts in that fruit. The pheromone proved water soluble and, when collected and sprayed in aqueous solution onto uninfested fruits in laboratory cages, effectively deterred boring attempts byC. capitata females of wild origin for at least 6 days (termination of test). A laboratory population ofC. capitata cultured on artificial media for more than 200 generations deposited pheromone that proved equally as deterrent to wild fly oviposition as pheromone from wild flies. However, lab fly oviposition was not effectively deterred by the presence of pheromone. The ecological significance of the pheromone is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988260
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 74
    Digitale Medien
    Digitale Medien
    Mating stimulant pheromone and cuticular lipid constituents ofFannia femoralis (Stein) (Diptera: Muscidae) (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 83-93 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Fannia femoralis (Stein) ; pheromone ; mating stimulant pheromone ; (Z)-11-hentriacontene ; cuticular lipid ; fly
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The cuticular lipids of male and femaleFannia femoralis were similar for recently emerged insects but soon began to develop chromatographic patterns characteristic of each sex. Mature females contained more C31 and C33 monoolefin in the cuticular lipid than males. Also, the double bonds in the monoolefins of the female lipid were situated predominantly at the eleventh and thirteenth carbons, while most of those from the males were centrally located in the molecule or at the ninth carbon. The female C31 monoolefin stimulated copulation by the males, but more mating activity occurred when the saturated hydrocarbons present in the female cuticular lipids were added. The synthetic monoolefin most active as a mating stimulant pheromone was (Z)-11-hentriacontene, but the addition of female alkanes or of syntheticn-alkanes to (Z)-11-hentriacontene increased the activity of the synthetic pheromone.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988263
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 75
    Digitale Medien
    Digitale Medien
    Species-specific natural products of adult male leaf-footed bugs (Hemiptera: Heteroptera) (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 53-62 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coreidae ; Heteroptera ; Hemiptera ; sex attractant ; pheromone ; sexual selection ; n-octanol ; benzyl alcohol ; vanillin ; 2-phenyl-ethanol ; leaf-footed bugs ; chemotaxonomy ; allomome
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The 7–8th ventral abdominal gland secretions from 6 adult male leaf-footed bugs,Leptoglossus spp., and a related species,Euthochtha galeator, were chemically analyzed by GC-MS. Of the 11 volatile compounds identified, all but one of the compounds (n-octanol) were aromatic, including compounds with the familiar odors of cherries, vanilla, cinnamon, and roses. The preponderance of aromatics in the adult male ventral abdominal gland secretions contrasts sharply with the aliphatic compounds which comprise the metathoracic gland defensive secretions of adult males and females. Also, the male-specific secretions are species-specific, both qualitatively and quantitatively, whereas the metathoracic gland secretions of Coreoidea are only distinctive at the generic level. It is proposed that males were favored as the emitters of attractive signals by sexual selection, whereas the specificity of the signal is the result of natural selection against hybridization.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987687
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 76
    Digitale Medien
    Digitale Medien
    Pheromone of the male flesh fly,Sarcophaga bullata (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 125-130 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Diptera ; Sarcophagidae ; flesh fly ; Sarcophaga bullata ; pheromone ; hexanal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Hexanal, isolated from a whole animal extract of the flesh fly,Sarcophaga bullata, attracts over 65% of the females tested with no apparent effect on males.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987693
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 77
    Digitale Medien
    Digitale Medien
    Specialization of olfactory cells to insect-and host-produced volatiles in the bark beetleIps pini (say) (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 109-123 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Bark beetle ; Ips pini ; Coleoptera ; Scolytidae ; pheromone ; enantiomer ; olfaction ; single cell ; electrophysiology
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Electrophysiological recordings inIps pini were made from single olfactory cells stimulated by six concentrations of eleven compounds—either pheromones or host constituents. The receptor cells were grouped according to their differential responses to these biologically significant compounds. Cells specialized to either ipsdienol or ipsenol (pheromones for severalIps species) appeared to be relatively uniform in their sensitivity to all compounds tested. Another group of cells specialized tocis- andtrans-verbenol were more variable in their sensitivities to the substances tested. The activation of separate groups of cells by the different pheromones and host compounds shows (by exclusion) that behaviorally expressed syner-gistic as well as inhibitory action mainly is due to an interaction in the central nervous system rather than an interaction of the compounds on the receptors. All “ipsdienol cells” responded to both enantiomers of ipsdienol. Although some differences between responses to the enantiomers by individual cells were observed, these did not form a consistent pattern, and no net differences could be found between the eastern and western populations ofI. pint.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987692
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 78
    Digitale Medien
    Digitale Medien
    Chiral specificity of the sex pheromone of the red-headed pine sawfly,Neodiprion lecontei (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 237-249 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Sawflies ; pheromone ; stereospecificity ; (−)-erythro configuration ; enantiomers ; chirality ; optical isomers ; Neodiprion lecontei
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The stereospecificity of the sawfly pheromone 3,7-dimethyl-2-pentadecanol acetate againstNeodiprion lecontei was studied. Twoerythro and a 1∶1 mixture ofthreo isomers (C-2 and C-3) were synthesized for this purpose. It was found that only one isomer with (−)-erythro configuration (2S, 3S) had biological activity. The potency of this synthetic pheromone was roughly identical to the one shown by the naturally occurring pheromone in this species.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988238
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 79
    Digitale Medien
    Digitale Medien
    Quantitative estimates of the western pine beetle attractive pheromone components,exo-brevicomin, frontalin, and myrcene in nature (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 397-414 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Dendroctonus brevicomis ; exo-brevicomin ; frontalin ; myrcene ; attractant ; pheromone ; pheromone production ; pest management ; bark beetle
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Three parameters are described for estimating the natural occurrence of chemically defined insect pheromones: (1) the rate and duration of release by the insect, (2) the density of the pheromone-emitting insect population in both time and space, and (3) dispersal and degradation rates of the chemicals. Each of these parameters, except dispersal, was estimated for a population ofDendroctonus brevicomis LeC, and its three component attractive pheromones. A single generation of 610,000 beetles, believed to comprise the entire population in a 65-km2 forest, was estimated to have released 0.78, 3.7, and 370.5 g of frontalin,exo-brevicomin, and myrcene, respectively, within a 30-day period.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987925
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 80
    Digitale Medien
    Digitale Medien
    Identification of a four-component sex pheromone of the female oriental fruit moth,Grapholitha molesta (Lepidoptera: Tortricidae) (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 423-427 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Grapholitha molesta ; Oriental fruit moth ; attractant ; pheromone ; (Z)-8-dodecenyl acetate ; (E)-8-dodecenyl acetate ; dodecyl acetate ; (Z)-8-dodecen-1-ol ; dodecanol
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The female-emitted pheromone ofGrapholitha molesta (Busck), the Oriental fruit moth, was collected by holding females in glass flasks during calling. Flask washes were found to contain four pheromone components: (Z)-8-dodecenyl acetate and (E)-8-dodecenyl acetate in a 100∶7 ratio, and (Z)-8-dodecen-1-ol and dodecanol in a 100∶20 ratio. The ratio of (Z)-8-acetate to (Z)-8-dodecen-1-ol was approx. 100∶30. Approximately 0.1–0.2 ng of pheromone was recovered per female per hour of calling.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987927
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 81
    Digitale Medien
    Digitale Medien
    Synthesis of the male stable fly polyene (Z,Z)-1,7,13-pentacosatriene and its geometrical isomers (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 415-422 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Stable fly ; Stomoxys calcitrans (L.) ; pheromone ; sex pheromone ; polyene ; mating stimulant ; (Z,Z)-1,7,13-pentacosatriene
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The four geometrical isomers of 1,7,13-pentacosatriene were synthesized from 1,7-octadiyne. Two of the required isomers were synthesized using known methodology. Hydrogenation of acetylenic linkages were employed to produce predominantly cis alkenes, and alkali metal/amine reduction was used to produce a trans alkene. It was thus possible to produce the (Z,Z) and the (Z,E) isomers. Methods for olefin inversion were then employed to obtain the other two isomers.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987926
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 82
    Digitale Medien
    Digitale Medien
    Trapping the western pine beetle at and near a source of synthetic attractive pheromone Effects of trap size and position (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 519-531 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Pinus ponderosa ; Dendroctonus brevicomis ; western pine beetle ; attractant ; pheromone ; behavior ; traps ; Coleoptera ; Scolytidae
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Western pine beetles were caught on unbaited sticky traps placed near a source ofexo-brevicomin, frontalin, and myrcene. Size of trap, distance and direction from the source of attractant, and height from the ground were varied. Significant differences in trap catch were observed in relation to each of the variables. Traps close to the source of attractant caught more beetles than traps farther from the source. Traps downwind of the source of attractant caught more beetles than did upwind traps. More males than females were trapped close to the source of attractant.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987837
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 83
    Digitale Medien
    Digitale Medien
    An efficient synthesis of muscalure from jojoba oil or oleyl alcohol (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 557-564 
    Details
    ISSN: 1573-1561
    Schlagwort(e): (Z)-9-tricosene ; muscalure ; housefly ; pheromone ; Musca domestica ; jojoba oil ; oleyl alcohol ; sex attractant ; Diptera
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract A four-step synthesis of (Z)-9-tricosene (“muscalure”), a component of the pheromone of the housefly, from jojoba oil (or three-step from oleyl alcohol) by 3-carbon (or 5-carbon) unit elongation was developed in overall high yield. The sequence of reactions and the purity of the products could be easily followed, with relatively good accuracy, by NMR technique.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987840
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 84
    Digitale Medien
    Digitale Medien
    Pheromonal attraction and allomonal interruption ofIps pini in California by the two enantiomers of ipsdienol (1980)
    Springer
    Journal of chemical ecology 6 (1980), S. 703-717 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Scolytidae ; bark beetle ; Ips pini ; pheromone ; ipsdienol ; enantiomer ; interruption ; allomone
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Air containing volatile compounds from around maleIps pini boring in ponderosa pine logs from California was condensed, fractionated by GC, and assayed in the laboratory and field. The only fraction that showed consistent activity in laboratory assays contained a single compound identified as ipsdienol (2-methyl-6-methylene-2,7-octadien-4-ol). Synthetic racemic ipsdienol showed no activity in either the laboratory or field. However, (−)-ipsdienol, the naturally occurring enantiomer, was attractive toI. pini in the laboratory and field, whereas (+)-ipsdienol interrupted the response ofI. pini to a natural source of attraction in field tests. (−)-Ipsdienol is a major component of the attractant pheromone of this species, since its level of activity in laboratory assays was quantitatively comparable to that of the condensed volatiles, and it was as attractive as maleI. pini boring in ponderosa pine in the field. (+)-Ipsdienol is a component of the pheromone of the competing species,I. paraconfusus.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987680
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 85
    Digitale Medien
    Digitale Medien
    Perception byTrogoderma species of chirality and methyl branching at a site far removed from a functional group in a pheromone component (1980)
    Springer
    Journal of chemical ecology 6 (1980), S. 911-917 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Trogoderma species ; trogodermal ; enantiomers ; chiral center ; geometric isomers ; methyl branching ; (Z)- or (E)-14-methyl-8-hexadecenal ; dermestid beetles ; Coleoptera ; Dermestidae ; pheromone ; chemoreception ; olfaction ; (Z)-hexadecenal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Responses to enantiomers of (Z)- and (E)-trogodermal (14-methyl-8-hexadecenal) suggest that fourTrogoderma species utilize the (R)-(−) configuration at C-14. Removal of the C-14 methyl branch decreased the response. These results demonstrate the high specificity associated with the configuration at a chiral center, or the methyl branch, distant in terms of numbers of bonds from a functional group.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990475
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 86
    Digitale Medien
    Digitale Medien
    Laboratory experiments to determine if crayfish can communicate chemically in a flow-through system (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 115-126 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Agonistic behavior ; chemical communication ; crayfish ; pheromone ; Procambarus clarkii
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The importance of chemical cues for transmitting information concerning sexual identity, agonistic state, and stress-related condition in the crayfishProcambarus clarkii (Girard) was examined in a flow-through system. Experiments tested the effects of “conditioned water” from stimulus tanks on the behavior of solitary male or female crayfish. Twenty males and 20 females were subjected to a random sequence of five treatments: unconditioned water (control), conditioned water flowing through tanks containing a solitary male or female, and conditioned water from tanks holding either two males or two females. Durations of the following behaviors were recorded: chelae up, chela(e) in baffle hole, chela waving, climbing, digging, grooming, gross body movement, and meral spread. Results indicated that crayfish chemically detected another animal within 0.25 m without additional visual or tactile stimuli; however, crayfish apparently did not “communicate” information on sexual identity, agonistic state, or stress condition, nor does this detection necessarily imply discrimination between stimuli from crayfish and other taxa (e.g., fish). Our conclusions are contrasted with the two previous reports on chemical communication in crayfish in which experimental animals were tested in static systems. We suggest that a temporal separation of molting and copulation and a long reproductive receptivity period for females (which would allow abundant intersexual encounters) could account for a lack of selective pressure to evolve long-distance sex pheromones.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988639
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 87
    Digitale Medien
    Digitale Medien
    Sex pheromone of fall armyworm (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 267-273 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Fall armyworm ; Spodoptera frugiperda ; Lepidoptera ; Noctuidae ; (Z)-9-dodecen-1-ol acetate ; (Z)-9-tetradecen-1-ol acetate ; pheromone ; mating behavior
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Two components of the fall armyworm,Spodoptera frugiperda (J.E. Smith), sex pheromone, (Z)-9-dodecen-1-ol acetate (DDA) and (Z)-9-tetradecen-1-ol (TDA), were tested alone and in combination to determine their effects on male sexual response and inhibition of mating in the laboratory. The threshold response for FAW males was lower for TDA than for DDA, and males responded to TDA over a wider range of dosages. Although TDA is not attractive to FAW males in the field, this compound was highly effective in reducing mating under laboratory conditions.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00984022
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 88
    Digitale Medien
    Digitale Medien
    The influence of a queen-produced substance, 9HDA, on swarm clustering behavior in the honeybeeApis mellifera L. (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1283-1288 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Honeybee ; swarming ; 9-hydroxy-(E)-2-decenoic acid ; pheromone ; chirality ; Apis mellifera ; Hymenoptera ; Apidae
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The effect of enantiomers of the queen-produced substance, 9-hydroxy-(E)-2-decenoic acid (9HDA) on swarm clustering behavior of the honeybeeApis mellifera was studied. Caged queens were removed from the swarms at the start of each test and were replaced with small Petri dishes containing one of the following treatments: 100 μgS(+) enantiomer of 9HDA, 100 μgR(-) enantiomer of 9HDA, 200 μg racemic (R, S) 9HDA, and a vehicle-treated control. Each swarm was considered to have dispersed when it had lost 50% of its starting weight. All treatments with 9HDA resulted in significantly longer swarm aggregation when compared with the control. Enantiomers were not shown to have different effects at theP ≤ 0.05 level of significance. However, observations on swarm behavior indicated that theR(-) enantiomer was the most active in retarding swarm dispersal.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987761
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 89
    Digitale Medien
    Digitale Medien
    Pentatomid natural products (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 161-172 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Pentatomidae ; Heteroptera ; Asopinae ; sex attractant ; pheromone ; (E)-2-hexenal ; α-terpineol ; benzyl alcohol ; exocrine glands
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract In addition to the primarily defensive metathoracic glands, adult Pentatomoidea possess a pair of active exocrine glands that open between the III and IV abdominal tergites. In the southern green stink bug,Nezara viridula, and other phytophagous species examined, the glands are small (〈 10 μg secretion/individual) and of approximately equal size in both sexes. In some, but not all, of the predaceous pentatomids (Asopinae), the III-IV dorsal abdominal glands are small in females (〈 10 μg secretion/individual) and extremely large in males (〉500 μg secretion/individual). Using a GC-MS system, the secretion from both males and females ofN. viridula (Pentatominae) was found to contain (E)-2-hexenal, hexanal, 1-hexanol, andn-tridecane. Females contained about three times moren-tridecane than males. The capacious glands ofPodisus maculiventris (Asopinae) males produce (E)-2-hexenal, benzyl alcohol, α-terpineol, linalool, terpinen-4-ol, andcis-piperitol. The composition of the previously unanalyzed secretions from the adult III-IV dorsal abdominal glands is compared and contrasted to that of secretions from the metathoricic gland, and the role of coexisting exocrine glands in adult Heteroptera is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988052
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 90
    Digitale Medien
    Digitale Medien
    Heliothis virescens: Attraction of males to blends of (Z)-9-tetradecen-1-ol formate and (Z)-9-tetradecenal (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 709-716 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Tobacco budworm ; Heliothis virescens (F.) ; virelure ; pheromone ; sex attractant ; (Z)-9-tetradecen-1-ol formate ; (Z)-7-dodecen-1-ol formate ; (Z)-11-hexadecenal ; (Z)-9-tetradecenal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract In field trapping experiments, 16∶1 and 32∶1 blends of (Z)-9-tetradecen-1-ol formate (Z-9-TDF) and (Z)-9-tetradecenal (Z-9-TDAL) caught as manyHeliothis virescens (F.) as 3 virgin females and virelure, the synthetic pheromone of this species [a 16∶1 mixture of (Z)-11-hexadecenal (Z-11-HDAL) and (Z)-9-tetradecenal]. Z-9-TDF and (Z)-7-dodecen-1-ol formate (Z-7-DDF) are structurally similar to Z-11-HDAL and Z-9-TDAL, respectively. The sensory input elicited by Z-9-TDF appears to substitute for the sensory input of Z-1 1-HDAL. In contrast, Z-7-DDF had no significant effect on catches of maleH. virescens when used alone, in combination with either Z-11-HDAL or Z-9-TDF as a bait in traps, or as a disruptant of pheromone communication via permeation of the atmosphere. Furthermore, Z-9-TDF may be a more stable and economical attractant forH, virescens males than is Z-1 1-HDAL.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990281
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 91
    Digitale Medien
    Digitale Medien
    Tandem calling pheromone in the genusLeptothorax (Hymenoptera: Formicidae): Behavioral analysis of specificity (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 35-52 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Hymenoptera ; Formicidae ; Leptothorax ; Mychothorax ; Harpagoxenus americanus ; recruitment ; pheromone ; poison gland ; specificity ; comparative behavioral analysis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Ants of the genusLeptothorax recruit to new nest sites and newly discovered food sources by tandem running. This involves one ant directly leading a nestmate to the target area. Pheromones from the poison gland have proved the most important signal employed during this recruitment behavior. Comparative behavioral analysis with 11 species ofLeptothorax demonstrated a subgenus specificity of the tandem calling pheromone between the subgeneraLeptothorax andMychothorax.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00987686
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 92
    Digitale Medien
    Digitale Medien
    Determination of enantiomer composition of several bicyclic ketal insect pheromone components (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 27-43 
    Details
    ISSN: 1573-1561
    Schlagwort(e): pheromone ; exo-brevicomin ; frontalin ; multistriatin ; Dendroctonus brevicomis ; Dendroctonus frontalis ; Scolytus multistriatus ; enantiomeric composition ; optical purity ; chiral shift reagent
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Details are given for the determination by a chiral shift reagent of enantiomer compositions of several bark beetle pheromone components, which are bicyclic ketals. The procedure was carried out on three samples in the range of 200 micrograms. For one sample, the determination was achieved at the level of 5 micrograms.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988131
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 93
    Digitale Medien
    Digitale Medien
    Attraction of redbanded leafroller moths,Argyrotaenia velutinana, to blends of (Z)-and (E)-11-tridecenyl acetates (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 143-149 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Redbanded leafroller ; Argyrotaenia velutinana (Walker) ; (Z)-11-tridecenyl acetate ; (E)-11-tridecenyl acetate ; (Z)-11-tetradecenyl acetate ; (E)-11-tetradecenyl acetate ; dodecyl acetate ; attractant ; pheromone
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The pheromone ofArgyrotaenia velutinana (Walker) is a 92∶8∶150 mixture of (Z)-11-, (E)-11-tetradecenyl and dodecyl acetates. An 85∶15 blend of (Z)-11- and (E)-11-tridecenyl acetates produces a trap catch equivalent to that with the pheromone blend. The sensory input elicited by (Z)-11-tridecenyl acetate appears to substitute for the sensory input of both (Z)-11-tetradecenyl and dodecyl acetates, whereas the input from (E)-11-tridecenyl acetate appears to substitute for that of (E)-11-tetradecenyl acetate. Surprisingly, addition of dodecyl acetate to the tridecenyl acetates mixture decreases trap catches.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00994141
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 94
    Digitale Medien
    Digitale Medien
    Inhibition of the attractant pheromone response inIps pini andI. paraconfusus (Coleoptera: Scolytidae): Field evaluation of ipsenol and linalool (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 257-267 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Ips ; paraconfusus ; I. pini ; pheromone ; allomone ; inhibition ; ipsenol ; linalool ; Scolytidae
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Linalool, a compound from maleI. pini, previously suggested as an inhibitor forI. paraconfusus, has no obvious effect on the response ofI. paraconfusus to ponderosa pine bolts containing maleI. paraconfusus. I. pini from California and New York equally inhibit the response ofI. paraconfusus to maleI. paraconfusus. Ipsenol, one component of the attractant pheromone ofIps paraconfusus, inhibits attacks byIps pini on ponderosa pine logs baited with maleI. pini. The concentration of ipsenol used appears to be critical for effective suppression of attacks.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988442
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 95
    Digitale Medien
    Digitale Medien
    Isolation and tentative identification of lineatin, a pheromone from the frass ofTrypodendron lineatum (Coleoptera: Scolytidae) (1977)
    Springer
    Journal of chemical ecology 3 (1977), S. 549-561 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Trypodendron lineatum ; lineatin ; pheromone ; attractant ; tricyclic acetal ; Scolytidae ; aggregation pheromone ; ambrosia beetle
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract An attractant compound was isolated from frass produced byTrypodendron lineatum female beetles boring in Douglas fir. The proposed structure is one of two isomeric tricyclic acetals, to which the trivial name lineatin is assigned.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00989076
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 96
    Digitale Medien
    Digitale Medien
    Mating stimulant pheromone and cuticular lipid constituents ofFannia pusio (Wiedemann) (Diptera: Muscidae) (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 73-81 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Fannia pusio (Wiedemann) ; pheromone ; mating stimulant pheromone ; (Z)-11-hentriacontene ; cuticular lipid ; fly
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Chromatograms of the cuticular lipids washed from newly emerged male and femaleFannia pusio were nearly identical. By the time the flies were 1 day old, the chromatographic profiles for the sexes were different. Mature females contained more C31- and C33-hydrocarbons than the males. The double bonds of the female monoolefins were mostly at the eleventh and thirteenth carbons, but those of the males were predominantly at the ninth carbon. Most active in stimulating copulation by males were the unbranched monoolefins with 31 and 33 carbons from the females. When they were synthesized and tested, the most active compound was (Z)-11-hentriacontene.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988262
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 97
    Digitale Medien
    Digitale Medien
    Identification of the California red scale sex pheromone (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 211-224 
    Details
    ISSN: 1573-1561
    Schlagwort(e): California red scale ; Aonidiella aurantii ; pheromone ; attractant ; enantiomer ; isomers (E,Z)-3-methyl-6-isopropenyl-9-decen-1-yl acetate ; (Z)-3-methyl-6-isopropenyl-3,9-decadien-1-yl acetate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Pheromone components of female California red scale,Aonidiella aurantii (Maskell) were isolated from airborne collections and found to be 3-methyl-6-isopropenyl-9-decen-1-yl acetate and (Z)-3-methyl-6-isopropenyl-3,9-decadien-1-yl acetate. Both enantiomers of the latter compound as well as the corresponding enantiomers of theE isomer were prepared from (S)- or (R)-carvone. Bioassays with each of the four isomers showed that only theR,Z isomer attracted male red scale.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988056
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 98
    Digitale Medien
    Digitale Medien
    Patterns of sex pheromone release from adult females, and effects of air velocity and pheromone release rates on theoretical communication distances inTrogoderma glabrutm (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 395-408 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Coleoptera ; chemical communication distances ; Dermestidae ; 14-methyl-8-hexadecenal ; pheromone ; release rates ; Trogoderma glabrum ; trogodermal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract By means of olfactory communication models, theoretical maximum communication distances for dispensers releasing synthetic (E)-14-methyl-8-hexadecenal (trogodermal) were confirmed in windtunnel tests withTrogoderma glabrum males. Pheromone release rates ofT. glabrum females are at least 104 greater during than before calling, and are gradually reduced after calling. The models predict that, even under ideal conditions, females may attract males from only several meters. The models are used to estimate active space lengths for female and synthetic pheromone sources, as a function of realistic release rates and wind velocities.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00989497
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 99
    Digitale Medien
    Digitale Medien
    Behavioral responses of the female eastern spruce budwormChoristoneura fumiferana (Lepidoptera, Tortricidae) to the sex pheromone of her own species (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 649-655 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Spruce budworm ; Choristoneura fumiferana ; pheromone ; female behavior ; electroantennogram ; dispersal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Female eastern spruce budworm moths respond to the synthetic sex pheromone of their own species (a mixture ofcis- andtrans-11-tetradecenal) by walking, antennal grooming, flexation of the body, extension of the ovipositors, and oviposition. The sex pheromone is perceived by receptors on the antennae. Electroantennogram responses from the female are approximately two-thirds the amplitude of those obtained from males.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990275
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 100
    Digitale Medien
    Digitale Medien
    Heterocyclic compounds as releasers of the fright reaction in the giant danioDanio malabaricus (Jerdon) (Cyprinidae, Ostariophysi, Pisces) (1978)
    Springer
    Journal of chemical ecology 4 (1978), S. 665-673 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Fish ; Danio malabaricus (Jerdon) ; fright reaction ; pheromone ; heterocyclic compounds
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Fifty-nine pteridine, purine, and pyrimidine derivatives were tested with schools of the giant danioDanio malabaricus (Jerdon). The fright reaction was elicited by three pteridine derivatives: 2,6-diamino-4-oxodihydropteridine, isoxanthopterin, and 6-acetonyliso-xanthopterin. A minor effect could not be excluded for three purine derivatives: I-5-MP, IDP, and ITP.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990277
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...