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dc.contributor.authorLangley, Izzy
dc.contributor.authorFedak, Mike
dc.contributor.authorNicholls, Keith
dc.contributor.authorBoehme, Lars
dc.identifier.citationLangley , I , Fedak , M , Nicholls , K & Boehme , L 2018 , ' Sex-related differences in the postmolt distribution of Weddell seals ( Leptonychotes weddellii ) in the southern Weddell Sea ' Marine Mammal Science , vol. 34 , no. 2 , pp. 403-419 .
dc.identifier.otherPURE: 248865290
dc.identifier.otherPURE UUID: 3180ed44-822f-41a1-ad34-3f3a446973e3
dc.identifier.otherScopus: 85037664828
dc.identifier.otherORCID: /0000-0002-9569-1128/work/47136252
dc.descriptionFunding: NERC grants NE/G014833/1 (MF) and NE/G014086/1 (KWN).en
dc.description.abstractThe population of Weddell seals (Leptonychotes weddellii) in the southern Weddell Sea is in a unique position on the continental shelf edge, with vast shelf waters to the south, and deep Southern Ocean to the north. We describe sex-related differences in the winter distribution of this population, from data collected by 20 conductivity-temperature-depth satellite relay data loggers deployed in February 2011 at the end of the annual molt. The regional daily speed was calculated, and a state-space model was used to estimate behavioral states to positions along individuals’ tracks. GLMMs estimated that males and smaller individuals, diving in shallower water, traveled less far per day of deployment (males 14.6 ± 2.26 km/d, females 18.9 ± 2.42 km/d), and males were estimated to dive in shallower water (males 604 ± 382 m, females 1,875 ± 1,458 m). Males and smaller individuals were also estimated to be more resident; males spent an average 83.4% ± 7.7% of their time in a resident behavioral state, compared to females at 74.1% ± 7.1%. This evidence that male and female Weddell seals in the southern Weddell Sea are adopting different strategies has not been shown elsewhere along their circumpolar distribution.en
dc.relation.ispartofMarine Mammal Scienceen
dc.rights© 2017 The Authors. Marine Mammal Science published by Wiley Periodicals, Inc. on behalf of Society for Marine Mammalogy. 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.subjectWeddell sealen
dc.subjectLeptonychotes weddelliien
dc.subjectPostmolt distributionen
dc.subjectSex-related differencesen
dc.subjectState-space modelen
dc.subjectResident stateen
dc.subjectWeddell Seaen
dc.subjectGC Oceanographyen
dc.subjectQH301 Biologyen
dc.titleSex-related differences in the postmolt distribution of Weddell seals (Leptonychotes weddellii) in the southern Weddell Seaen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.description.statusPeer revieweden

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