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Colony attendance and moult pattern of Cory's Shearwaters (Calonectris borealis) differing in breeding status and age

2023Journal article Open access
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dc.contributor.authorCampioni, Letizia
dc.contributor.authorRoda, Sofia Bolumar
dc.contributor.authorAlonso, Hany
dc.contributor.authorCatry, Paulo
dc.contributor.authorGranadeiro, José P.
dc.date.accessioned2024-02-14T19:55:52Z
dc.date.available2024-02-14T19:55:52Z
dc.date.issued2023
dc.description.abstractMigratory birds must fit three costly life-history events within the annual cycle, reproduction, moult and migration, to minimize their overlap and maximize survival and breeding success. However, some seabirds, such as Cory’s Shearwater Calonectris borealis, overlap body moult and breeding, with flight feather renewal occurring in late chick-rearing. In contrast, the moult patterns of non-breeding adult (sabbatical) and immature Cory’s Shearwaters, which also attend the colony during the breeding season, remain poorly understood. Furthermore, the potential implications of life-stage and breeding status trade-offs on moult status and colony attendance in non-breeders has rarely been investigated. Surveying different areas within one colony between June and September 2013 and 2014, we studied the age and breeding status composition of birds attending the breeding colony and scored moult of their body (breast and upper-neck), wing and tail feathers. We found that in addition to breeders (n = 165), 57.6% of the birds (n = 389) attending the colony were 4- to 10-year-old immatures (n = 132) and adult sabbatical shearwaters (n = 92). Sabbaticals and 8- to 10-year-old immatures (n = 28) were present at the colony during incubation, whereas only three sabbatical birds and no 8- to 10-year-old immatures were captured in late chick-rearing. Conversely, 4- to 7-year-old immatures arrived later in the season but were still present in late chick-rearing. Sabbatical and 8- to 10-year-old immatures were moulting body feathers at the same time as adult breeders, whereas, among 4- to 7-year-old immatures, older birds moulted earlier than younger birds. A larger proportion of sabbatical birds were replacing tail feathers compared with adult breeders. However, there was no evidence that sabbaticals or 8- to 10-year-old immatures differed in wing moult from adult breeders until August. Overall, our study shows that colony attendance by non-breeding adults and immatures is widespread in this population. The synchronous moult schedule of flight and body feathers across age groups at different life-history stages may suggest that this aspect of moult is controlled by environmental conditions.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCampioni, L., Catry, P., Bolumar Roda, S., Alonso, H., & Granadeiro, J. P. (2023). Colony attendance and moult pattern of Cory’s Shearwaters (Calonectris borealis) differing in breeding status and age. Ibis. https://doi.org/10.1111/ibi.13291pt_PT
dc.identifier.doi10.1111/ibi.13291pt_PT
dc.identifier.issn1474919X
dc.identifier.urihttp://hdl.handle.net/10400.12/9571
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWiley-Blackwell Publishing Ltdpt_PT
dc.relationUIDB/04292/2020pt_PT
dc.relationUIDB/50017/2020pt_PT
dc.relationUIDP/04292/2020pt_PT
dc.relationUIDP/04292/2020pt_PT
dc.relationUIDP/50017/2020pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCalonectris borealispt_PT
dc.subjectMoulting timept_PT
dc.subjectNon-breederpt_PT
dc.subjectProspectingpt_PT
dc.subjectSeabirdpt_PT
dc.titleColony attendance and moult pattern of Cory's Shearwaters (Calonectris borealis) differing in breeding status and agept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited Kingdompt_PT
oaire.citation.endPage15pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleIbispt_PT
person.familyNameCampioni
person.familyNameAlonso
person.familyNameCatry
person.familyNamePedro Granadeiro
person.givenNameLetizia
person.givenNameHany
person.givenNamePaulo
person.givenNameJosé
person.identifierSlxtKi4AAAAJ
person.identifier.ciencia-id1016-2368-D535
person.identifier.ciencia-id1D12-A88B-C408
person.identifier.ciencia-idEF1A-6A4A-013A
person.identifier.ciencia-id3114-23EB-2E89
person.identifier.orcid0000-0002-6319-6931
person.identifier.orcid0000-0001-6698-6018
person.identifier.orcid0000-0003-3000-0522
person.identifier.orcid0000-0002-7207-3474
person.identifier.ridI-5408-2013
person.identifier.scopus-author-id27267546800
person.identifier.scopus-author-id7003725276
person.identifier.scopus-author-id6603758245
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoveryeb29b823-96b7-4ac5-834a-40abb89607c6

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