The chemical ecology of the lesser chestnut weevil: behavioral and electrophysiological responses of Curculio sayi (Coleoptera: curculionidae) to host-plant volatile organic compounds

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The chemical ecology of the lesser chestnut weevil: behavioral and electrophysiological responses of Curculio sayi (Coleoptera: curculionidae) to host-plant volatile organic compounds

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/15778

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dc.contributor.advisor Barrett, Bruce A. en_US
dc.contributor.author Keesey, Ian W.
dc.date.accessioned 2012-10-18T20:00:03Z
dc.date.available 2012-10-18T20:00:03Z
dc.date.issued 2011
dc.date.submitted 2011 Spring en_US
dc.identifier.other KeeseyI-101012-D6245
dc.identifier.uri http://hdl.handle.net/10355/15778
dc.description Title from PDF of title page (University of Missouri--Columbia, viewed on October 18, 2012). en_US
dc.description The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. en_US
dc.description Dissertation advisor: Dr. Bruce A. Barrett en_US
dc.description Includes bibliographical references. en_US
dc.description Vita. en_US
dc.description Ph. D. University of Missouri--Columbia 2012. en_US
dc.description Dissertations, Academic -- University of Missouri--Columbia -- Plant, insect and microbial sciences. en_US
dc.description "May 2011" en_US
dc.description.abstract The most abundant volatile organic compounds (VOC) from chestnut reproductive plant tissue (catkin, nut and bur) were identified with gas chromatography and mass-spectrometry (GC-MS). Two-choice behavioral bioassays were conducted with a Y-tube olfactometer using chestnut plant tissues (leaf, catkin, nut and bur) and individual VOC to assess the response of adult lesser chestnut weevil, Curculio sayi. Additionally, the electrophysiological response of the antennae of C. sayi adults towards both plant tissue and individual VOC from chestnut was examined using an electroantennogram (EAG). The behavioral bioassay and EAG data associated with chestnut plant tissue demonstrated that the insect does not respond directly to the sites of oviposition (nut tissue), but rather more strongly to the spiked bur encasing the nuts, the leaves, and the spring florescence (catkins). There were several differences between male and female responses to plant tissue and individual VOC, as well as significant differences between those insects collected in the spring compared to those from the fall season. A qualitative analysis of the reproductive organs of C. sayi adults revealed distinct differences in their development across the spring and fall seasons for both males and females. en_US
dc.format.extent xviii, 187 pages en_US
dc.language.iso en_US en_US
dc.publisher University of Missouri--Columbia en_US
dc.subject insect behavior en_US
dc.subject olfactometer en_US
dc.subject semiochemicals en_US
dc.subject electroantennogram en_US
dc.subject chemical ecology en_US
dc.title The chemical ecology of the lesser chestnut weevil: behavioral and electrophysiological responses of Curculio sayi (Coleoptera: curculionidae) to host-plant volatile organic compounds en_US
dc.type Thesis en_US
thesis.degree.discipline Plant, insect and microbial sciences en_US
thesis.degree.grantor University of Missouri--Columbia en_US
thesis.degree.name Ph. D. en_US
thesis.degree.level Doctoral en_US
dc.relation.ispartofcommunity University of Missouri-Columbia. Graduate School. Theses and Dissertations. Dissertations. 2011 Dissertations
dc.relation.ispartofcollection 2011 Freely available dissertations (MU)


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