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  • pheromone  (90)
  • Springer  (90)
  • American Association of Petroleum Geologists (AAPG)
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  • Springer  (90)
  • American Association of Petroleum Geologists (AAPG)
  • Elsevier  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Trail Marking by the Larva of the Madrone Butterfly Eucheira socialis and the Role of the Trail Pheromone in Communal Foraging Behavior (1998)
    Springer
    Journal of insect behavior 11 (1998), S. 247-263 
    Details
    ISSN: 1572-8889
    Keywords: trail following ; 5β-cholestane-3-one ; pheromone ; cooperative foraging ; social caterpillar ; bolsa ; silk ; Pieridae ; Eucheira ; Lepidoptera
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The larva of the Madrone butterfly Eucheira socialis (Lepidoptera: Pieridae) secretes a trail pheromone from the ventral surface of the posterior tip of its abdomen. Caterpillars mark trails by bringing the secretory site into brief contact with the substrate during a locomotive cycle. Foragers mark most heavily when they move onto new branches and little, if at all, when they move over established trails or when they return to the communal shelter after feeding. The caterpillars make careful comparisons of alternative pathways at choice points and select newer and stronger trails over older and weaker trails. Differential marking of new and established trails during nightly forays, coupled with sensory discrimination of trails by strength and age, leads colonies to abandon old trails in favor of new trails. When applied at a rate as low as 2.5 × 10 −10 g/mm, caterpillars followed synthetic trails prepared from 5β-cholestane-3-one, a trail pheromone previously reported from the tent caterpillars (Malacosoma spp.). Although both Eucheira and Malacosoma mark with the tip of the abdomen and have near-identical sensitivites to 5β-cholestane-3-one, our study shows that Eucheira employs a relatively unsophisticated system of trail-based communication and does not recruit to food. The trail-based communication system of Eucheira appears to represent an early stage in the evolution of cooperative foraging that is derived from, and motivationally linked to, conflict behavior.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1021000108290
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  • 2
    Electronic Resource
    Electronic Resource
    Identification of sex pheromone of browntail moth,Euproctis chrysorrhoea (L.) (Lepidoptera: Lymantriidae) (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 897-910 
    Details
    ISSN: 1573-1561
    Keywords: Browntail moth ; Euproctis chrysorrhoea (L.) ; Lepidoptera ; Lymantriidae ; pheromone ; (Z,Z,Z,Z)-7,13,16,19-docosatetraen-1-ol isobutyrate ; sex attractant ; dose dependence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A unique sex attractant pheromone was isolated and identified from extracts of ovipositor tips from the female browntail moth (Lepidoptera: Lymantriidae). The pheromone compound, (Z,Z,Z,Z)-7,13,16,19-docosatetraen-1-ol isobutyrate, CH3CH2CH=CHCH2CH=CHCH2CH= CH(CH2)4CH=CH(CH2)6O2CCH(CH3)2, was identified by a combination of gas chromatography, mass spectrometry, and microreactions and was confirmed by synthesis. Traps baited with 5–50 μg of the synthetic pheromone, dispensed from rubber septa treated with an antioxidant and a UV stabilizer, gave male moth captures that were comparable to traps baited with three virgin females. Higher (250 μg) and lower (0.04–2.5 μg quantities of the synthetic pheromone on septa captured somewhat fewer males. Captures were the same for similar quantities of the natural and synthetic pheromone. Minor, inactive components in the tip extract were identified as a mixture of 7- and 8-pentacosanone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01395598
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  • 3
    Electronic Resource
    Electronic Resource
    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
    Keywords: Scolytidae ; bark beetle ; Ips pini ; pheromone ; ipsdienol ; enantiomer ; interruption ; allomone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987680
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  • 4
    Electronic Resource
    Electronic Resource
    Sex pheromone of caddisflyHesperophylax occidentalis (Banks) (Trichoptera: Limnephilidae) (1996)
    Springer
    Journal of chemical ecology 22 (1996), S. 103-121 
    Details
    ISSN: 1573-1561
    Keywords: Electroantennogram ; EAG ; caddisfly ; Trichoptera ; Limnephilidae ; pheromone ; attractant ; semiochemical ; infochemical ; mating ; sex ; volatiles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The main component of the sex pheromone of the caddisflyHesperophylax occidentalis (Banks) (Trichoptera: Limnephilidae) was identified as 6-methylnonan-3-one (enantiomeric composition has not yet been determined). Extracts of adult females elicited strong electroantennogram (EAG) responses from adult male antennae, but elicited significantly smaller EAG responses from adult female antennae. Extracts of adult males did not elicit appreciable EAG responses from antennae of either sex. Racemic 6-methylnonan-3-one was synthesized and elicited EAG responses from male antennae as strong as those obtained with female extracts. In field tests with baited sticky traps near lakes and streams, traps baited with synthetic racemic 6-methylnonan-3-one caught significantly more males than control traps. Female adults contained approximately 1 µg of 6-methylnonan-3-one per individual. Related ketones and alcohols of other chain lengths were also tentatively identified, being present in tiny amounts in female extracts. Extraction of different body parts showed that 6-methylnonan-3-one occurs only in a region near the intersegmental membrane between the fourth and fifth abdominal sternites of the female (no discrete glands were observed). Extracts of males did not contain 6-methylnonan-3-one, nor did pupae of either sex.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02040203
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  • 5
    Electronic Resource
    Electronic Resource
    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
    Keywords: Pinus ponderosa ; Dendroctonus brevicomis ; western pine beetle ; attractant ; pheromone ; behavior ; traps ; Coleoptera ; Scolytidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987837
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  • 6
    Electronic Resource
    Electronic Resource
    Synthesis and field testing of 4,6,6-lineatin, the aggregation pheromone ofTrypodendron lineatum (Coleoptera: Scolytidae) (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 681-689 
    Details
    ISSN: 1573-1561
    Keywords: Trypodendron lineatum ; 4,6,6-lineatin ; 3,3,7-trimethyl-2,9-dioxatricyclo[3.3.1.04,7]nonane ; pheromone ; attractant ; tricyclic acetal ; Scolytidae ; aggregation pheromone ; ambrosia beetle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Authentic 4,6,6-lineatin (3,3,7-trimethyl-2,9-dioxatricyclo-[3.3.1.04,7]nonane) (I) was produced in low yield via three synthetic pathways. In field tests, microgram amounts of the product from all three syntheses attracted large numbers ofTrypodendron lineatum of both sexes. These results confirm that 4,6,6-lineatin (I) is a population aggregation pheromone forT. lineatum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00986553
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  • 7
    Electronic Resource
    Electronic Resource
    Contact sex pheromone in the tsetse flyGlossina pallidipes (Austen) Identification and Synthesis (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 429-450 
    Details
    ISSN: 1573-1561
    Keywords: Glossina ; pallidipes ; tsetse fly ; Diptera ; Muscidae ; pheromone ; contact stimulant ; branched alkane ; 13,23-dimethylpentatriacontane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Adult maleG. pallidipes attempted to copulate with decoys treated with a branched paraffin obtained from laboratory-reared female flies. The compound causing maximal response was isolated and identified as 13,23-dimethylpentatriacontane. The synthesized compound elicited increasing responses with increasing doses. This sex- and species-specific compound was always present in physiological amounts in females, as it increased from 2 μg at emergence to 10 μg per female at 14 days. It was present in wild-caught females from a wide geographical range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988090
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  • 8
    Electronic Resource
    Electronic Resource
    Analysis, synthesis, formulation, and field testing of three major components of male mediterranean fruit fly pheromone (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 1925-1940 
    Details
    ISSN: 1573-1561
    Keywords: Insecta ; Diptera ; Tephritidae ; Mediterranean fruit fly ; pheromone ; attractant ; Ceratitis capitata ; ethyl-(E)-3-octenoate ; geranyl acetate ; (E,E)-α-farnesene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Three major components, ethyi-(E)-3-octenoate, geranyl acetate, and (E,E)-α-farnesene, emitted as volatiles by laboratory-reared and wild male medflies were collected and analyzed qualitatively and quantitatively. Peak emission of these compounds occurred during the third to fifth hours of the photophase and differences were observed in the ratios of the three components emitted by male laboratory-reared and wild flies. These three compounds were synthesized, and a method was developed to formulate a synthetic blend that released the compounds in a ratio similar to that emitted by wild male medflies. Attractiveness of the blend to female medflies was demonstrated under field conditions by comparing trap catches. Black spherical traps, baited with the synthetic blend to release 1.6 male equivalents, caught significantly more females than blank traps and traps from which the blend released was 0.3, 3.2 or 6.4 male equivalents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00993739
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  • 9
    Electronic Resource
    Electronic Resource
    Volatile compounds from interdigital gland of male white-tailed deer (Odocoileus virginianus) (1996)
    Springer
    Journal of chemical ecology 22 (1996), S. 1689-1696 
    Details
    ISSN: 1573-1561
    Keywords: Interdigital gland ; Odocoileus virginianus ; pheromone ; scent communication ; semiochemical ; volatiles ; white-tailed deer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Interdigital secretions were collected from eight male white-tailed deer of various ages. Analysis of volatiles was performed by gas chromatography-mass spectrometry with a modified headspace technique. Forty-six volatile compounds were found including alkanes, arenes, aldehydes, ketones, aliphatic acids, esters, pyrroles, furans, and sulfur compounds. Eleven occurred in higher concentrations (P≤0.10) in dominant (≥3.5-year-old) than in subordinate (≥1.5-year-old) animals. Dominant males typically have higher serum testosterone levels, and fatty acids and esters fluctuate with sebum production, which is under hormonal control. Therefore, these compounds may reflect testosterone levels and act as chemical signals indicating the presence of a dominant male. Interdigital volatiles also may act as generalized scent trail markers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02272407
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  • 10
    Electronic Resource
    Electronic Resource
    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
    Keywords: Dendroctonus brevicomis ; exo-brevicomin ; frontalin ; myrcene ; attractant ; pheromone ; pheromone production ; pest management ; bark beetle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987925
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