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  • 1
    Electronic Resource
    Electronic Resource
    Chemical ecology ofReticulitermes flavipes (Kollar) andR. virginicus (Banks) (Rhinotermitidae) (1981)
    Springer
    Journal of chemical ecology 7 (1981), S. 717-731 
    Details
    ISSN: 1573-1561
    Keywords: Reticulitermes flavipes ; R. virginicus ; cephalic extracts ; γ1-cadinene ; γ1-cadinene aldehyde ; soldiers ; Rhinotermitidae ; Isoptera
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Reticulitermes flavipes andR. virginicus have been examined for the presence and possible defense functions of soldiers specific secretions. The cephalic extracts for soldiers of both species contained the identical two major sesquiterpenes which were absent from other castes. The sesquiterpenes have been identified as γ1-cadinene (I) and the corresponding aldehyde (II) by high-resolution nuclear magnetic resonance spectrometry using homonuclear proton decoupling and by high-resolution mass spectrometry. When groups of termite soldiers were exposed to foraging parties of the sympatric native fire ant,Solenopsis geminata, the termites utilized only mechanical defenses. No evidence was obtained to indicate that the ants had been sprayed or coated with either an irritant or toxicant, and there was no evidence that an alarm had been promulgated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00990304
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Cuticular hydrocarbons ofReticulitermes virginicus (Banks) and their role as potential species- and caste-recognition cues (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 1227-1239 
    Details
    ISSN: 1573-1561
    Keywords: Caste ; methyl-branched hydrocarbons ; Reticulitermes virginicus ; Reticulitermes flavipes ; Isoptera ; termites ; Rhinotermitidae ; methoxy ethers ; mass spectra ; NMR spectra ; bioassay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The cuticular hydrocarbon components of four castes ofReticulitermes virginicus (Banks) have been identified and quantitated. Components identified includen-alkanes; 2-, 3-, 11-, 13-, and 15-methyl-alkanes; 11,15-dimethylalkanes, (Z)-9-alkenes; (Z,Z)-7,9-dienes; and (E/Z)-6,9-dienes ranging in carbon number from C21 to C40. All caste forms ofR.virginicus contained the same components, but showed caste-specific proportions. Comparison of these hydrocarbons with those of the sympatric termiteR. flavipes (Kollar) suggest that cuticular hydrocarbons might serve as species- and caste-recognition cues. A bioassay was developed to test this species-recognition hypothesis, with the experimental results supporting the hypothesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00990755
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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