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An alarm pheromone in the venom gland of Vespa velutina: evidence revisited from the european invasive population

dc.rights.licenseopenen_US
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorTHIERY, Denis
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorBONNARD, Olivier
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorRIQUIER, Laurent
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorDE REVEL, Gilles
dc.contributor.authorMONCEAU, Karine
dc.date.accessioned2020-08-31T12:04:44Z
dc.date.available2020-08-31T12:04:44Z
dc.date.issued2018
dc.identifier.issn0171-8177en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/10718
dc.description.abstractEnAlarm pheromones are major communication signals in animals and major semiochemicals in the colony organisation of social insects. We investigated the composition of venom in Vespa velutina, an invasive hornet species accidentally introduced into Europe a decade ago. Crushed venom glands were applied to seven wild V. velutina nests and induced aggressive responses of workers in all the colonies tested. Then, solvent extracts or headspace Solid Phase Micro Extraction (SPME) were analysed and quantified by gas chromatography coupled with either flame ionization detector or a mass spectrometer, and checked retention times to Kovats indices and Linear retention indices (LRI). We compared our results to those obtained in the same species from its native area in a previous study. Nonan-2-one and the 4, 8-dimethylnon-7-en-2-one were found in large amount in the venom gland. Five other molecules including the heptan-2-one, non-8-en-2-one, undecan-2-one and two unknown molecules were also found. Similar compounds were globally found, however, one unknown compound was present in our European population but absent in native area ones and should be identify. Although pheromones are thought to be species-specific, our results suggest that their composition may vary within species due to population history, thus questioning its value as a taxonomic tool. Although our results are preliminary, we also recommend carefully considering the origin of the Vespa velutina individuals chosen to develop pheromone-based methods (attractants or mating disruption) for pest management.
dc.language.isoENen_US
dc.subjectVespa velutina
dc.subjectInsecte social
dc.subjectPhéromone d'alarme
dc.subjectInvasion biologique
dc.subject.enBiological Invasion
dc.subject.enChemical Communication
dc.subject.enIntraspecific Variability
dc.subject.enPheromone
dc.subject.enVespidae
dc.title.enAn alarm pheromone in the venom gland of Vespa velutina: evidence revisited from the european invasive population
dc.typeArticle de revueen_US
dc.identifier.doi10.1127/entomologia/2018/0719en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalEntomologia Generalisen_US
bordeaux.page145-156en_US
bordeaux.volume38en_US
bordeaux.hal.laboratoriesOenologie - EA 4577en_US
bordeaux.issue2en_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.exportfalse
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