Short-chain carboxylic acids from gray catbird (Dumetella carolinensis) uropygial secretions vary with testosterone levels and photoperiod

Title:
Short-chain carboxylic acids from gray catbird (Dumetella carolinensis) uropygial secretions vary with testosterone levels and photoperiod
Authors:
Whelan, Rebecca J. ( 0000-0002-9293-1528 ) ; Levin, Tera C.; Garvin, Mary C.
Abstract:
The uropygial gland of birds produces secretions that are important in maintaining the health and structural integrity of feathers. Non-volatile components of uropygial secretions are believed to serve a number of functions including waterproofing and conditioning the feathers. Volatile components have been characterized in fewer species, but are particularly interesting because of their potential importance in olfactory interactions within and across species. We used solid-phase microextraction headspace sampling with gas chromatography-mass spectrometry to detect and identify volatiles in uropygial secretions of gray catbirds (Dumetella carolinensis), a North American migratory bird. We consistently detected the following carboxylic acids: acetic, propanoic, 2-methylpropanoic, butanoic, and 3-methylbutanoic. We tested for the effect of lengthened photoperiod and/or exogenous testosterone on volatile signal strength and found a negative effect of lengthened photoperiod on the signal strength of propanoic, 2-methylpropanoic, and butanoic acids, suggesting a trade-off between their production and heightened night-time activity associated with lengthened photoperiod. Signal strength of propanoic and 2-methylpropanoic acids was lower in birds treated with exogenous testosterone than in birds treated with placebos. Sex did not affect signal strength of any of the volatile compounds.
Citation:
Whelan, Rebecca J., Tera C. Levin, Jennifer C. Owen, and Mary C. Garvin. 2010. "Short-chain carboxylic acids from gray catbird (Dumetella carolinensis) uropygial secretions vary with testosterone levels and photoperiod." Comparative Biochemistry and Physiology, Part B 156(3): 183-188.
Publisher:
Elsevier
DATE ISSUED:
2010-07
Department:
Chemistry
Type:
article
PUBLISHED VERSION:
10.1016/j.cbpb.2010.03.005
PERMANENT LINK:
http://hdl.handle.net/11282/309889

Full metadata record

DC FieldValue Language
dc.contributor.authorWhelan, Rebecca J.en_US
dc.contributor.authorLevin, Tera C.en_US
dc.contributor.authorGarvin, Mary C.en_US
dc.date.accessioned2013-12-23T16:20:24Zen
dc.date.available2013-12-23T16:20:24Zen
dc.date.issued2010-07en
dc.identifier.citationWhelan, Rebecca J., Tera C. Levin, Jennifer C. Owen, and Mary C. Garvin. 2010. "Short-chain carboxylic acids from gray catbird (Dumetella carolinensis) uropygial secretions vary with testosterone levels and photoperiod." Comparative Biochemistry and Physiology, Part B 156(3): 183-188.en_US
dc.identifier.issn1096-4959en_US
dc.identifier.urihttp://hdl.handle.net/11282/309889en
dc.description.abstractThe uropygial gland of birds produces secretions that are important in maintaining the health and structural integrity of feathers. Non-volatile components of uropygial secretions are believed to serve a number of functions including waterproofing and conditioning the feathers. Volatile components have been characterized in fewer species, but are particularly interesting because of their potential importance in olfactory interactions within and across species. We used solid-phase microextraction headspace sampling with gas chromatography-mass spectrometry to detect and identify volatiles in uropygial secretions of gray catbirds (Dumetella carolinensis), a North American migratory bird. We consistently detected the following carboxylic acids: acetic, propanoic, 2-methylpropanoic, butanoic, and 3-methylbutanoic. We tested for the effect of lengthened photoperiod and/or exogenous testosterone on volatile signal strength and found a negative effect of lengthened photoperiod on the signal strength of propanoic, 2-methylpropanoic, and butanoic acids, suggesting a trade-off between their production and heightened night-time activity associated with lengthened photoperiod. Signal strength of propanoic and 2-methylpropanoic acids was lower in birds treated with exogenous testosterone than in birds treated with placebos. Sex did not affect signal strength of any of the volatile compounds.en_US
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.identifier.doi10.1016/j.cbpb.2010.03.005en_US
dc.subject.departmentChemistryen_US
dc.titleShort-chain carboxylic acids from gray catbird (Dumetella carolinensis) uropygial secretions vary with testosterone levels and photoperioden_US
dc.typearticleen_US
dc.identifier.journalComparative Biochemistry and Physiology, Part Ben_US
dc.subject.keywordChemical ecologyen_US
dc.subject.keywordCarboxylic acidsen_US
dc.subject.keywordDumetella carolinensisen_US
dc.subject.keywordGas chromatographymass spectrometryen_US
dc.subject.keywordGray catbirden_US
dc.subject.keywordSolid-phase microextractionen_US
dc.subject.keywordStatic headspace samplingen_US
dc.subject.keywordUropygial glanden_US
dc.subject.keywordVolatile organic compoundsen_US
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