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dc.contributor.authorSiegal, Eilidh
dc.contributor.authorHooker, Sascha Kate
dc.contributor.authorIsojunno, Saana
dc.contributor.authorMiller, Patrick James
dc.date.accessioned2022-01-26T11:30:11Z
dc.date.available2022-01-26T11:30:11Z
dc.date.issued2022-01-26
dc.identifier.citationSiegal , E , Hooker , S K , Isojunno , S & Miller , P J 2022 , ' Beaked whales and state-dependent decision-making : how does body condition affect the trade-off between foraging and predator avoidance? ' , Proceedings of the Royal Society B , vol. 289 , no. 1967 , 20212539 . https://doi.org/10.1098/rspb.2021.2539en
dc.identifier.otherPURE: 277616116
dc.identifier.otherPURE UUID: afb4b965-d256-41fb-a0d7-2f4eaf18abd0
dc.identifier.otherORCID: /0000-0002-7518-3548/work/107286960
dc.identifier.otherORCID: /0000-0002-2212-2135/work/107286985
dc.identifier.otherORCID: /0000-0002-7833-302X/work/107287256
dc.identifier.otherWOS: 000746806400018
dc.identifier.otherScopus: 85123814837
dc.identifier.urihttp://hdl.handle.net/10023/24753
dc.descriptionThis work was supported by the US Strategic Environmental Research and Development Program (award RC-2337), the US Office of Naval Research and the French DGA.en
dc.description.abstractBody condition is central to how animals balance foraging with predator avoidance—a trade-off that fundamentally affects animal fitness. Animals in poor condition may accept greater predation risk to satisfy current foraging ‘needs’, while those in good condition may be more risk averse to protect future ‘assets’. These state-dependent behavioural predictions can help interpret responses to human activities, but are little explored in marine animals. This study investigates the influence of body condition on how beaked whales trade-off foraging and predator avoidance. Body density (indicating lipid-energy stores) was estimated for 15 foraging northern bottlenose whales tagged near Jan Mayen, Norway. Composite indices of foraging (diving and echolocation clicks) and anti-predation (long ascents, non-foraging dives and silent periods reducing predator eavesdropping) were negatively related. Experimental sonar exposures led to decreased foraging and increased risk aversion, confirming a foraging/perceived safety trade-off. However, lower lipid stores were not related to a decrease in predator avoidance versus foraging, i.e. worse condition animals did not prioritize foraging. Individual differences (personalities) or reproductive context could offer alternative explanations for the observed state-behaviour relationships. This study provides evidence of foraging/predator-avoidance trade-offs in a marine top predator and demonstrates that animals in worse condition might not always take more risks.
dc.format.extent10
dc.language.isoeng
dc.relation.ispartofProceedings of the Royal Society Ben
dc.rightsCopyright © 2022 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.en
dc.subjectBeaked whaleen
dc.subjectAnti-predator behaviouren
dc.subjectBehaviouren
dc.subjectForagingen
dc.subjectState-dependent decision-makingen
dc.subjectBody conditionen
dc.subjectGC Oceanographyen
dc.subjectQH301 Biologyen
dc.subjectQP Physiologyen
dc.subjectDASen
dc.subject.lccGCen
dc.subject.lccQH301en
dc.subject.lccQPen
dc.titleBeaked whales and state-dependent decision-making : how does body condition affect the trade-off between foraging and predator avoidance?en
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Institute of Behavioural and Neural Sciencesen
dc.contributor.institutionUniversity of St Andrews. Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews. Centre for Social Learning & Cognitive Evolutionen
dc.contributor.institutionUniversity of St Andrews. Bioacoustics groupen
dc.identifier.doihttps://doi.org/10.1098/rspb.2021.2539
dc.description.statusPeer revieweden


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