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dc.contributor.authorGrecian, W. James
dc.contributor.authorLane, Jude
dc.contributor.authorMichelot, Théo
dc.contributor.authorWade, Helen M.
dc.contributor.authorHamer, Keith C.
dc.date.accessioned2018-06-06T09:30:13Z
dc.date.available2018-06-06T09:30:13Z
dc.date.issued2018-06-06
dc.identifier.citationGrecian , W J , Lane , J , Michelot , T , Wade , H M & Hamer , K C 2018 , ' Understanding the ontogeny of foraging behaviour : insights from combining marine predator bio-logging with satellite-derived oceanography in hidden Markov models ' , Journal of the Royal Society Interface , vol. 15 , no. 143 , 20180084 . https://doi.org/10.1098/rsif.2018.0084en
dc.identifier.issn1742-5689
dc.identifier.otherPURE: 253182549
dc.identifier.otherPURE UUID: 0940fe46-2914-44cf-bd7b-36bcee683f55
dc.identifier.otherScopus: 85048323343
dc.identifier.otherORCID: /0000-0002-6428-719X/work/45557835
dc.identifier.otherWOS: 000437007600014
dc.identifier.urihttps://hdl.handle.net/10023/13749
dc.descriptionThis work was funded by the Natural Environment Research Council and the Department for Business, Energy and Industrial Strategy.en
dc.description.abstractThe development of foraging strategies that enable juveniles to efficiently identify and exploit predictable habitat features is critical for survival and long-term fitness. In the marine environment, meso- and sub-mesoscale features such as oceanographic fronts offer a visible cue to enhanced foraging conditions, but how individuals learn to identify these features is a mystery. In this study, we investigate age-related differences in the fine-scale foraging behaviour of adult (aged ≥ 5 years) and immature (aged 2-4 years) northern gannets Morus bassanus. Using high-resolution GPS-loggers, we reveal that adults have a much narrower foraging distribution than immature birds and much higher individual foraging site fidelity. By conditioning the transition probabilities of a hidden Markov model on satellite-derived measures of frontal activity, we then demonstrate that adults show a stronger response to frontal activity than immature birds, and are more likely to commence foraging behaviour as frontal intensity increases. Together, these results indicate that adult gannets are more proficient foragers than immatures, supporting the hypothesis that foraging specialisations are learned during individual exploratory behaviour in early life. Such memory-based individual foraging strategies may also explain the extended period of immaturity observed in gannets and many other long-lived species.
dc.format.extent9
dc.language.isoeng
dc.relation.ispartofJournal of the Royal Society Interfaceen
dc.rights© 2018 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.subjectAnimal telemetryen
dc.subjectForaging ecologyen
dc.subjectFinite-size Lyapunov exponenten
dc.subjectLearningen
dc.subjectMarine vertebrateen
dc.subjectMovement ecologyen
dc.subjectQH301 Biologyen
dc.subjectGC Oceanographyen
dc.subjectQA Mathematicsen
dc.subjectDASen
dc.subjectSDG 14 - Life Below Wateren
dc.subject.lccQH301en
dc.subject.lccGCen
dc.subject.lccQAen
dc.titleUnderstanding the ontogeny of foraging behaviour : insights from combining marine predator bio-logging with satellite-derived oceanography in hidden Markov modelsen
dc.typeJournal articleen
dc.contributor.sponsorNERCen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.identifier.doihttps://doi.org/10.1098/rsif.2018.0084
dc.description.statusPeer revieweden
dc.identifier.grantnumberNE/R015007/1en


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