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When males are more inclined to stay at home :Insights into the partial migration of a pelagic seabird provided by geolocators and isotopes

dc.contributor.authorPerez, Cristóbal
dc.contributor.authorGranadeiro, José Pedro
dc.contributor.authorDias, Maria P.
dc.contributor.authorAlonso, Hany Rafael de Drummond Ludovice Garcia
dc.contributor.authorCatry, Paulo
dc.date.accessioned2016-05-31T17:45:41Z
dc.date.available2016-05-31T17:45:41Z
dc.date.issued2014
dc.description.abstractPartial migration has never been studied in pelagic seabirds, but investigating old unresolved questions in new contexts can provide useful fresh insights. We used geolocators and stable isotopes to investigate this phenomenon in a migratory pelagic seabird, the Cory’s shearwater (Calonectris diomedea). Although most birds migrated to the southern hemisphere, 8.1% of studied birds (N = 172) remained close to the breeding colony (Selvagem Grande, Madeira, Portugal), foraging within the Canary current. Almost all resident birds were males, while age or body size did not predict migratory status. Despite displaying a high repeatability (R = 0.72) in the choice of wintering area, residency was not a fixed strategy and individuals could switch between migrating and staying in the Canary current in different years. The predictions resulting from the “body size” and the “social dominance” hypotheses, in which larger individuals or dominant individuals, respectively, remain closer to the breeding areas, were not supported by our data. Resident males were able to occupy the nesting burrows much earlier than migratory males and arrival time in this species is known to affect the probability of engaging in a reproductive attempt. The selective pressure to arrive early at the colony is therefore the most likely explanation for the maintenance of this partial migration system.pt_PT
dc.description.abstract  was under a research contract within project “Sustainable Use of Marine Resources - MARES” (CENTRO-07-ST24- FEDER-002033), cofinanced by “Mais Centro” Regional Operational Programme (Centro Region) and European Regional Development Fund (ERDF).pt_PT
dc.description.sponsorshipSpanish Ministerio de Educación; Fundação para a Ciência e a Tecnologia (FCT); Mais Centro” Regional Operational Programme (Centro Region); European Regional Development Fund (ERDF)pt_PT
dc.identifier.citationBehavioral Ecology, 25, 313-319. doi:10.1093/beheco/art119pt_PT
dc.identifier.doi10.1093/beheco/art119pt_PT
dc.identifier.issn1045-2249
dc.identifier.urihttp://hdl.handle.net/10400.12/4680
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherOxford University Presspt_PT
dc.relationEDU 2728/2011pt_PT
dc.relationEX2010-0748pt_PT
dc.relationStrategic Project - UI 331 - 2011-2012
dc.relationFEEDING ECOLOGY OF A TOP MARINE PREDATOR IN RELATION TO OCEANOGRAPHY AND CLIMATE AND ASSESSMENT OF POTENTIAL FOR MONITORING OF PELAGIC ECOSYSTEMS IN THE FACE OF GLOBAL WARMING
dc.subjectCalonectris diomedeapt_PT
dc.subjectCory’s shearwaterpt_PT
dc.subjectPartial migrationpt_PT
dc.subjectSeabirdspt_PT
dc.titleWhen males are more inclined to stay at home :Insights into the partial migration of a pelagic seabird provided by geolocators and isotopespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 331 - 2011-2012
oaire.awardTitleFEEDING ECOLOGY OF A TOP MARINE PREDATOR IN RELATION TO OCEANOGRAPHY AND CLIMATE AND ASSESSMENT OF POTENTIAL FOR MONITORING OF PELAGIC ECOSYSTEMS IN THE FACE OF GLOBAL WARMING
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FMAR%2FUI0331%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F46827%2F2008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F47055%2F2008/PT
oaire.citation.conferencePlaceOxfordpt_PT
oaire.citation.endPage319pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage313pt_PT
oaire.citation.titleBehavioral Ecologypt_PT
oaire.citation.volume25pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamSFRH
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication96890d2c-1aa4-4408-9eb9-d0f1e6bcac32
relation.isProjectOfPublicationb0280174-7b17-4569-937a-a43567e7e0dc
relation.isProjectOfPublication1ea0a4cf-1746-4b26-af77-da53327943af
relation.isProjectOfPublication.latestForDiscovery96890d2c-1aa4-4408-9eb9-d0f1e6bcac32

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