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Understanding the ontogeny of foraging behaviour : insights from combining marine predator bio-logging with satellite-derived oceanography in hidden Markov models
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dc.contributor.author | Grecian, W. James | |
dc.contributor.author | Lane, Jude | |
dc.contributor.author | Michelot, Théo | |
dc.contributor.author | Wade, Helen M. | |
dc.contributor.author | Hamer, Keith C. | |
dc.date.accessioned | 2018-06-06T09:30:13Z | |
dc.date.available | 2018-06-06T09:30:13Z | |
dc.date.issued | 2018-06-06 | |
dc.identifier.citation | Grecian , 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.2018.0084 | en |
dc.identifier.issn | 1742-5689 | |
dc.identifier.other | PURE: 253182549 | |
dc.identifier.other | PURE UUID: 0940fe46-2914-44cf-bd7b-36bcee683f55 | |
dc.identifier.other | Scopus: 85048323343 | |
dc.identifier.other | ORCID: /0000-0002-6428-719X/work/45557835 | |
dc.identifier.other | WOS: 000437007600014 | |
dc.identifier.uri | https://hdl.handle.net/10023/13749 | |
dc.description | This work was funded by the Natural Environment Research Council and the Department for Business, Energy and Industrial Strategy. | en |
dc.description.abstract | The 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.extent | 9 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of the Royal Society Interface | en |
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.subject | Animal telemetry | en |
dc.subject | Foraging ecology | en |
dc.subject | Finite-size Lyapunov exponent | en |
dc.subject | Learning | en |
dc.subject | Marine vertebrate | en |
dc.subject | Movement ecology | en |
dc.subject | QH301 Biology | en |
dc.subject | GC Oceanography | en |
dc.subject | QA Mathematics | en |
dc.subject | DAS | en |
dc.subject | SDG 14 - Life Below Water | en |
dc.subject.lcc | QH301 | en |
dc.subject.lcc | GC | en |
dc.subject.lcc | QA | en |
dc.title | Understanding the ontogeny of foraging behaviour : insights from combining marine predator bio-logging with satellite-derived oceanography in hidden Markov models | en |
dc.type | Journal article | en |
dc.contributor.sponsor | NERC | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. School of Biology | en |
dc.contributor.institution | University of St Andrews. Sea Mammal Research Unit | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.identifier.doi | https://doi.org/10.1098/rsif.2018.0084 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | NE/R015007/1 | en |
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