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Effect of breeding performance on the distribution and activity budgets of a predominantly resident population of black‐browed albatrosses

dc.contributor.authorPonchon, Aurore
dc.contributor.authorCornulier, Thomas
dc.contributor.authorHedd, April
dc.contributor.authorGranadeiro, José Pedro
dc.contributor.authorCatry, Paulo
dc.date.accessioned2019-09-12T14:35:53Z
dc.date.available2019-09-12T14:35:53Z
dc.date.issued2019
dc.description.abstractPelagic seabirds breeding at high latitudes generally split their annual cycle between reproduction, migration, and wintering. During the breeding season, they are constrained in their foraging range due to reproduction while during winter months, and they often undertake long-distance migrations. Black-browed albatrosses (Thalassarche melanophris) nesting in the Falkland archipelago remain within 700 km from their breeding colonies all year-round and can therefore be considered as resident. Accordingly, at-sea activity patterns are expected to be adjusted to the absence of migration. Likewise, breeding performance is expected to affect foraging, flying, and floating activities, as failed individuals are relieved from reproduction earlier than successful ones. Using geolocators coupled with a saltwater immersion sensor, we detailed the spatial distribution and temporal dynamics of at-sea activity budgets of successful and failed breeding black-browed albatrosses nesting in New Island, Falklands archipelago, over the breeding and subsequent nonbreeding season. The 90% monthly kernel distribution of failed and successful breeders suggested no spatial segregation. Both groups followed the same dynamics of foraging effort both during daylight and darkness all year, except during chick-rearing, when successful breeders foraged more intensively. Failed and successful breeders started decreasing flying activities during daylight at the same time, 2-3 weeks after hatching period, but failed breeders reached their maximum floating activity during late chick-rearing, 2 months before successful breeders. Moon cycle had a significant effect on activity budgets during darkness, with individuals generally more active during full moon. Our results highlight that successful breeders buffer potential reproductive costs during the nonbreeding season, and this provides a better understanding of how individuals adjust their spatial distribution and activity budgets according to their breeding performance in absence of migration.pt_PT
dc.description.sponsorshipCESAM; FCT: Fundação para a Ciência e Tecnologiapt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationEcology and Evolution, 9(15), 8702-8713 Doi: 10.1002/ece3.5416pt_PT
dc.identifier.doi10.1002/ece3.5416pt_PT
dc.identifier.issn2045-7758
dc.identifier.urihttp://hdl.handle.net/10400.12/7156
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationUID/ AMB/50017/2019pt_PT
dc.relationMARE - Marine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectActive foragingpt_PT
dc.subjectBreeding failurept_PT
dc.subjectCarry‐over effectspt_PT
dc.subjectMigrationpt_PT
dc.subjectReproductive costpt_PT
dc.subjectSustained flightpt_PT
dc.subjectWintering groundspt_PT
dc.titleEffect of breeding performance on the distribution and activity budgets of a predominantly resident population of black‐browed albatrossespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00502%2F2013%2FCP1186%2FCT0003/PT
oaire.citation.endPage8713pt_PT
oaire.citation.issue15pt_PT
oaire.citation.startPage8702pt_PT
oaire.citation.titleEcology and Evolutionpt_PT
oaire.citation.volume9pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamInvestigador FCT
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication41fc03bd-0081-4fe9-a26c-bde7b2ec6283
relation.isProjectOfPublicatione5516a99-acb0-4335-aa35-cf4c810de077
relation.isProjectOfPublication.latestForDiscovery41fc03bd-0081-4fe9-a26c-bde7b2ec6283

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