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dc.contributor.authorEdwards, Morgan J.
dc.contributor.authorStanley, Christina R.
dc.contributor.authorHosie, Charlotte A.
dc.contributor.authorRichdon, Sarah
dc.contributor.authorPrice, Eluned
dc.contributor.authorWormell, Dominic
dc.contributor.authorSmith, Tessa E.
dc.date.accessioned2022-07-12T15:12:59Z
dc.date.available2022-07-12T15:12:59Z
dc.date.issued2022-06-27
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/627014/1-s2.0-S0018506X22001222-main.pdf?sequence=5
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/627014/Stanley%20-%20Social%20roles%20influence%20cortisol%20levels%20in%20captive%20Livingstone%27s%20fruit%20bats.pdf?sequence=10
dc.identifier.citationEdwards, M. J., Stanley, C. R., Hosie, C. A., Richdon, S., Price, E., Wormell, D., & Smith, T. E. (2022). Social roles influence cortisol levels in captive Livingstone's fruit bats (Pteropus livingstonii). Hormones and Behavior, 144, 105228. https://doi.org/10.1016/j.yhbeh.2022.105228.en_US
dc.identifier.issn0018-506X
dc.identifier.doi10.1016/j.yhbeh.2022.105228
dc.identifier.urihttp://hdl.handle.net/10034/627014
dc.description.abstractA critical component of conserving and housing species ex situ is an explicit scientific understanding of the physiological underpinnings of their welfare. Cortisol has been repeatedly linked to stress, and therefore used as an indicator of welfare for many species. In order to measure cortisol in the Livingstone's fruit bat (Pteropus livingstonii; a critically endangered keystone species) without disturbing the captive population, we have developed and validated a non-invasive, novel hormone extraction procedure and faecal glucocorticoid assay. A total of 92 faecal samples, 73 from the P. livingstonii breeding colony at Jersey Zoo, Channel Islands and 19 samples from P. livingstonii housed at Bristol Zoological Gardens, UK, have been collected and analyzed. Mixed-effect modelling of the influence of physiological state variables on cortisol concentration revealed that lactating females had higher cortisol levels than non-lactating females, indicating that our assay is measuring biologically relevant hormone concentrations. Males and older bats also had higher cortisol than non-lactating females and younger individuals. Further analysis applied social network methodology to compare the cortisol levels of bats with different social roles. We found that individuals that linked social groups possessed higher than average cortisol levels and conversely, individuals with high-quality, positive relationships had lower cortisol levels. These results demonstrate, for the first time in a bat species, social mediation of stress hormones. Lastly, the frequency of vocalisation was found to positively correlate with cortisol concentration in males, suggesting that this behaviour may be used by animal management as a visual indicator of a bat's hormonal status. Hence, this research has provided unique insights and empirical scientific knowledge regarding the relationship between the physiology and social behaviour of P. livingstonii, therefore allowing for recommendations to be made to optimise bat welfare at the individual level.en_US
dc.publisherElsevieren_US
dc.relation.ispartofseriesVolume 144, 105228en_US
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S0018506X22001222?via%3Dihuben_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.subjectCortisolen_US
dc.subjectEnzyme-immunoassayen_US
dc.subjectSocial bufferingen_US
dc.subjectConservationen_US
dc.subjectFruit batsen_US
dc.subjectNon-invasiveen_US
dc.subjectWelfareen_US
dc.titleSocial roles influence cortisol levels in captive Livingstone's fruit bats (Pteropus livingstonii)en_US
dc.typeArticleen_US
dc.contributor.departmentUniversity of Chester; Bristol Zoological Society; Durrell Wildlife Conservation Trusten_US
dc.identifier.journalHormones and Behavioren_US
or.grant.openaccessYesen_US
rioxxterms.funderSelf funded PhD, Morgan Edwardsen_US
rioxxterms.identifier.projectSelf funded PhD, Morgan Edwardsen_US
rioxxterms.versionVoRen_US
rioxxterms.versionofrecord10.1016/j.yhbeh.2022.105228.en_US
rioxxterms.licenseref.startdate2023-06-27
dcterms.dateAccepted2022-06-21
rioxxterms.publicationdate2022-06-27
dc.date.deposited2022-07-12en_US
dc.indentifier.issn0018-506Xen_US


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