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  • 1
    Book
    Book
    London : ISTE | Hoboken, New Jersey : Wiley
    Keywords: Chemical ecology ; Chemical ecology ; Aufsatzsammlung ; Ökologische Chemie
    Type of Medium: Book
    Pages: xvi, 222 Seiten , Illustrationen, Diagramme , 25 cm
    ISBN: 9781848219243
    Series Statement: Ecological science series
    DDC: 577/.14
    RVK:
    Language: English
    Note: Literaturangaben , Foreword / Stéphanie Thiébault and Françoise Gaill -- Introduction / Anne-Geneviève Bagnères and Martine Hossaert-McKey -- Biodiversity and chemical mediation / Bertrand Schatz, Doyle McKey and Thierry Pérez -- Chemical ecology : an integrative and experimental science / Anne-Marie Cortesero, Magali Proffit, Christophe Duplais and Frédérique Viard -- Scents in the social life of non-human and human primates / Marie Charpentier, Guillaume Odonne and Benoist Schaal -- Microbiota and chemical ecology / Soizic Prado, Catherine Leblanc and Sylvie Rebuffat -- From chemical ecology to ecogeochemistry / Catherine Fernandez, Virginie Baldy and Nadine Le Bris -- Omics in chemical ecology / Sylvie Baudino, Christophe Lucas and Carole Smadja -- Metabolomic contributions to chemical ecology / Philippe Potin, Florence Nicolè and Olivier P. Thomas -- Chemical, biological and computational tools in chemical ecology / Nicolas Barthès, Jean-Claude Caissard, Jérémy Just and Xavier Fernandez -- Academic and economic values of understanding chemical communication / Bernard Banaigs, Ali Al Mourabit, Guillaume Clave and Claude Grison -- Conclusion / Martine Hossaert-McKey and Anne-Geneviève Bagnères
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  • 2
    ISSN: 1573-1561
    Keywords: Polymorphism ; chemotaxonomy ; Reticulitermes flavipes ; Reticulitermes santonensis ; Isoptera ; termites ; cuticular hydrocarbons ; defensive compounds ; terpenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Colonies ofReticulitermes flavipes andR. santonensis were collected from the southeastern United States (Georgia) and the southwest of France (Charente-maritime). Defensive compounds and cuticular hydrocarbons were identified by gas chromatography-mass spectrometry and quantified by gas chromatography using an internal standard for each caste and all colonies. These analyses show that although the cuticular hydrocarbons ofR. santonensis in Europe andR. flavipes in Georgia are identical, their relative proportions are different. However, the defensive compounds synthesized by their soldiers are different. A strong chemical polymorphism between sympatric colonies ofR. flavipes in the SW United States was detected in terms of both the hydrocarbons of the workers and soldiers and in the defensive secretions of the soldiers. The six defensive secretion phenotypes are based on the presence or absence of terpenes whereas the cuticular hydrocarbon phenotypes are based on significant differences in the proportions of the various components. A multivariate analysis (analysis of principal components) clearly permitted discrimination of four phenotypes (three inR. flavipes and one inR. santonensis) without intermediates. The hydrocarbons responsible for these variations were identified, and it was shown that the variations are neither seasonal nor geographic. The phenotypes of the cuticular hydrocarbons (workers and soldiers) and defensive compounds are linked in each colony, forming in three groups inR. flavipes Georgia, one subdivided into four subgroups according to the defensive secretion phenotypes. The role of these polymorphisms is discussed and ethological tests indicate that the chemical polymorphism do not determine aggressive behavior. The taxonomic significance of these results is considered and two hypothesis are formulated: (1) We only detected a strong genetic polymorphism in one unique species, and we believe thatR. santonensis was introduced into Europe in the last century from oneR. flavipes colony. (2) Chemical variability characterizes the sibling species that can be grouped into the same subspeciesR. flavipes. Unknown mechanisms of reproductive isolation separate them.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-1561
    Keywords: Interspecific recognition ; Isoptera ; termites ; Reticulitermes ; cuticular hydrocarbons ; aggression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Two species of termites,Reticulitermes (lucifugus) grassei andR. (l.) banyulensis, show a high degree of aggressivity toward each other. The epicuticular signature, recognized by contact, can be extracted using organic solvents, and the removal of the signature abolished all types of aggressive behavior. The signature can be transferred to lures, where it triggers interspecies aggression. It was found to be mainly present in the apolar fraction of the cuticular extracts, which contained only hydrocarbons, are determined by GC/MS techniques. Chemical recognition contributes towards isolation of the two species belonging to theR. lucifugus complex.
    Type of Medium: Electronic Resource
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