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  • Hymenoptera  (3)
  • Isoptera  (2)
  • FLUID MECHANICS AND HEAT TRANSFER
  • OCEANOGRAPHY
  • Springer  (5)
  • 1980-1984  (5)
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Keywords
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  • Springer  (5)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Soldier-specific chemicals of the termiteCurvitermes strictinasus Mathews (Isoptera, Nasutitermitinae) (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 127-133 
    Details
    ISSN: 1573-1561
    Keywords: Isoptera ; Nasutitermitinae ; isolation ; identification ; Curvitermes strictinasus (Mathews) ; defense secretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The defense secretion of the soldier termites ofCurvitermes strictinasus Mathews has been analyzed. Seven components have been isolated and identified, including limonene, terpinolene,p-cymen-8-ol, tridecan-2-one, tridecen-2-onecis,trans-farnesal, andtrans,trans-farnesal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988640
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Specificity of laboratory trail following by the argentine ant,Iridomyrmex humilis (Mayr), to (Z)-9-hexadecenal, analogs, and gaster extract (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1057-1063 
    Details
    ISSN: 1573-1561
    Keywords: Argentine ant ; Iridomyrmex humilis (Mayr) ; Hymenoptera ; Formicidae ; trail-following bioassay ; (Z)-9-hexadecenal ; geometric isomer ; analogues ; choice tests
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract In laboratory trail-following bioassays of Argentine ant workers,Iridomyrmex humilis (Mayr), the geometric isomer, (E)-9-hexadecenal, of the trail pheromone component (Z)-9-hexadecenal elicited insignificant trail following as did the potentially more stable formate analogs, (Z)-7-tetradecenyl formate, (E)-7-tetradecenyl formate, and tetradecyl formate. Further, in direct choice tests, workers showed no preference for gaster extract trails (0.002 ant equiv/cm) over trails of (Z)-9-hexadecenal (0.2 ng/cm). Moreover, a 10-fold increase in synthetic trail concentration to 2.0 ng/cm caused (Z)-9-hexadecenal trails to be significantly preferred over gaster extract trails by trail-following ants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987886
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Chemical composition of the frontal gland secretion ofSyntermes soldiers (Isoptera, Termitidae) (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 135-145 
    Details
    ISSN: 1573-1561
    Keywords: Isoptera ; Nasutitermitinae ; Syntermes species ; defensive secretion ; isolation ; identification ; terpenoid compounds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The defensive secretions from the frontal glands of soldier termites of the genusSyntermes contain similar mixtures of mono- and sesquiterpene hydrocarbons. The major components inS. dirus, S. molestus, S. brevimalatus, S. peruanus, and a new species (Syntermes sp. n), iscis-β-ocimene. A substantial amount of aristolochene is found inSyntermes sp. n. and is present at lower levels in all the other species;S. brevimalatus contains onlycis-β-ocimene and aristolochene. The four other species also contain minor amounts of epi-α-selinene and germacrene A. The latter compound has been identified on the basis of its rearrangement product β-elemene. The termiteS. grandis differed markedly from the otherSyntermes species in that no terpenoid components were found in the soldier extract. With the obvious exception ofS. grandis, the same soldier-specific mono- and sesquiterpenes occurred in all species. The total amount of secretion per unit weight of soldiers varies with the species and is inversely proportional to the development of the mandibular apparatus. InS. molestus smaller gland size is compensated for by a greater number of soldiers foraging trails.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988641
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  • 4
    Electronic Resource
    Electronic Resource
    Host location inOlesicampe monticola, a parasite of larvae of larch sawflyCephalcia lariciphila (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 203-208 
    Details
    ISSN: 1573-1561
    Keywords: Olesicampe monticola ; Hymenoptera ; Ichneumonidae ; Cephalcia lariciphila ; Pamphiliidae ; parasitism ; kairomone ; biological control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract In the laboratory, ovipositor probing in mated femaleOlesicampe monticola was elicited by freshCephalcia lariciphila frass but not by aged frass or freshly spun larval silk. Second instar sawfly larvae andLarix needles also elicited a low level of ovipositor probing. Extracts of frass in dichloromethane, but not hexane, were also active. No difference in response was found to frass fromC. lariciphila larvae fed on three varieties ofLarix, (L. kaempferi, L. decidua andL. × eurolepis).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988648
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  • 5
    Electronic Resource
    Electronic Resource
    Trail-following responses of the Argentine ant,Iridomyrmex humilis (Mayr), to a synthetic trail pheromone component and analogs (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 3-14 
    Details
    ISSN: 1573-1561
    Keywords: Argentine ant ; Iridomyrmex humilis ; Hymenoptera ; Formicidae ; trail-following ; structure-activity ; (Z)-9-hexadecenal ; threshold ; trail emission rate ; synthetic trail longevity ; bioassay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Behavioral evidence indicates that (Z)-9-hexadecenal (Z9-16∶ALD) is a trail pheromone component ofIridomyrmex humilis, and that the true trail pheromone may be multicomponent. Trail-following responses ofI. humilis workers to several concentrations of syntheticZ9-16∶ALD, a constituent of the Pavan's gland, were found to be comparable to responses to gaster extract trails containing ca. 100 times lessZ9-16∶ALD. Of the five aldehyde analogs tested, only (Z)-7-hexadecenal (Z7-16∶ALD) elicited significant trail-following. However, following responses to severalZ9-16∶ALD-Z7-16∶ALD combinations were lower than responses toZ9-16∶ALD alone. Trails on filter paper of biologically relevant concentrations ofZ9-16∶ALD lose activity within 2 hr in the laboratory. The release rate ofZ9-16∶ALD measured from filter paper trails was 0.25 ± 0.10 pg/cm-sec. This was used to estimate the trail-following threshold for this compound of Argentine ant workers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984000
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