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dc.contributor.authorPenacchio, Olivier
dc.contributor.authorCuthill, Innes
dc.contributor.authorLovell, Paul George
dc.contributor.authorRuxton, Graeme Douglas
dc.contributor.authorHarris, Julie
dc.identifier.citationPenacchio , O , Cuthill , I , Lovell , P G , Ruxton , G D & Harris , J 2015 , ' Orientation to the sun by animals and its interaction with crypsis ' , Functional Ecology , vol. 29 , no. 9 , pp. 1165-1177 .
dc.identifier.otherPURE: 175310912
dc.identifier.otherPURE UUID: e69773b8-a621-4562-b8b8-d00054c83956
dc.identifier.otherScopus: 84941022920
dc.identifier.otherORCID: /0000-0002-3497-4503/work/46085856
dc.identifier.otherORCID: /0000-0001-8943-6609/work/60427542
dc.identifier.otherWOS: 000361235200007
dc.description.abstract1. Orientation with respect to the sun has been observed in a wide range of species and has generally been interpreted in terms of thermoregulation and/or UV protection. For countershaded animals, orientation with respect to the sun may also result from the pressure to exploit the gradient of coloration optimally to enhance crypsis. 2. Here we use computational modelling to predict the optimal countershading pattern for an oriented body. We assess how camouflage performance declines as orientation varies using a computational model that incorporates realistic lighting environments. 3. Once an optimal countershading pattern for crypsis has been chosen, we determine separately how ultra-violet protection/irradiation and solar thermal inflow fluctuate with orientation. 4. We show that body orientations that could optimally use countershading to enhance crypsis are very similar to those that allow optimal solar heat inflow and ultra-violet protection. 5. Our findings suggest that crypsis has been overlooked as a selective pressure on orientation and that new experiments should be designed to tease apart the respective roles of these different selective pressures. We propose potential experiments that could achieve this.
dc.relation.ispartofFunctional Ecologyen
dc.rights(c) 2015 The Authors. Functional Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.subjectBody orientationen
dc.subjectThermal melanismen
dc.subjectUltra-violet protectionen
dc.subjectQH301 Biologyen
dc.subjectRC0321 Neuroscience. Biological psychiatry. Neuropsychiatryen
dc.titleOrientation to the sun by animals and its interaction with crypsisen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Psychology and Neuroscienceen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Institute of Behavioural and Neural Sciencesen
dc.contributor.institutionUniversity of St Andrews.Centre for Biological Diversityen
dc.description.statusPeer revieweden

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