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dc.contributor.authorSamarra, Filipa I. P.
dc.contributor.authorTavares, S. B.
dc.contributor.authorBéesau, J.
dc.contributor.authorDeecke, V. B.
dc.contributor.authorFennell, A.
dc.contributor.authorMiller, P. J. O.
dc.contributor.authorPétursson, H.
dc.contributor.authorSigurjónsson, J.
dc.contributor.authorVíkingsson, G. A.
dc.identifier.citationSamarra , F I P , Tavares , S B , Béesau , J , Deecke , V B , Fennell , A , Miller , P J O , Pétursson , H , Sigurjónsson , J & Víkingsson , G A 2017 , ' Movements and site fidelity of killer whales ( Orcinus orca ) relative to seasonal and long-term shifts in herring ( Clupea harengus ) distribution ' , Marine Biology , vol. 164 , 159 .
dc.identifier.otherPURE: 250560537
dc.identifier.otherPURE UUID: 67e9709b-753a-42c6-ba38-043653d00d52
dc.identifier.otherScopus: 85022047841
dc.identifier.otherORCID: /0000-0001-7216-6913/work/35609717
dc.identifier.otherWOS: 000406280200003
dc.descriptionFunding was provided by a Fundação para a Ciência e a Tecnologia doctoral scholarship (Grant No. SFRH/BD/30303/2006), an Icelandic Research Fund (i. Rannsóknasjóður) START Postdoctoral Fellowship (Grant No. 120248042), the National Geographic Society Science and Exploration Europe (Grant No. GEFNE65-12) and a Russell Trust Award (University of St. Andrews) to FIPS, the Office of Naval Research (Grant No. N00014-08-10984) to PJOM, a Fundação para a Ciência e a Tecnologia doctoral scholarship (Grant No. SFRH/BD/84714/2012) to SBT and support from the BBC Natural History Unit and funding from a Full Doctorate Fellowship from CNPq/Capes through the Science Without Borders Program, Marie-Curie Intra-European Fellowship and Research and Scholarship Development Fund (University of Cumbria) to VBD.en
dc.description.abstractPredators specialising on migratory prey that frequently change migration route face the challenge of finding prey with an unpredictable distribution. Here, we used photo-identification data to investigate whether killer whales observed in herring overwintering and spawning grounds off Iceland follow herring year-round, as previously proposed, and have the ability to adapt to long-term changes in herring distribution. Of 327 identified whales seen more than once, 45% were seen in both grounds, and were thus presumed herring-specialists, likely following herring year-round, while others were only seen on one of the grounds, possibly following herring to unsampled grounds or moving to other locations and exploiting different prey. High seasonal site fidelity to herring grounds, long-term site fidelity to herring spawning grounds, and matches of individual whales between past and recently occupied herring overwintering grounds showed an ability to adapt to long-term changes in prey distribution as well as diversity of movement patterns which are maintained over time, likely as socially-learnt traditions. Such population structuring shows that the movement patterns and foraging ecology of herring-eating killer whales are more complex than previously assumed and must be taken into account in future population assessments. Identifying the factors driving these differences in movements and resource use will be relevant towards our understanding of how prey predictability may drive specialization in this and other top predator species.
dc.relation.ispartofMarine Biologyen
dc.rights© 2017, Springer-Verlag GmbH Germany. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at /
dc.subjectDistribution shiftsen
dc.subjectPredator-prey relationshipen
dc.subjectPrey specialisationen
dc.subjectQH301 Biologyen
dc.subjectSH Aquaculture. Fisheries. Anglingen
dc.subjectAquatic Scienceen
dc.subjectEcology, Evolution, Behavior and Systematicsen
dc.titleMovements and site fidelity of killer whales (Orcinus orca) relative to seasonal and long-term shifts in herring (Clupea harengus) distributionen
dc.typeJournal articleen
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.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.Centre for Social Learning & Cognitive Evolutionen
dc.contributor.institutionUniversity of St Andrews.Bioacoustics groupen
dc.description.statusPeer revieweden

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