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Spatial and temporal aggregation of albatross chick mortality events in the Falklands suggests a role for an unidentified infectious disease

2021Journal article Open access
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dc.contributor.authorVentura, Francesco
dc.contributor.authorGranadeiro, José Pedro
dc.contributor.authorMatias, Rafael
dc.contributor.authorCatry, Paulo
dc.date.accessioned2021-01-27T17:05:10Z
dc.date.available2021-01-27T17:05:10Z
dc.date.issued2021
dc.description.abstractIn the context of environmental change, determining the causes underpinning unusual mortality events of vertebrate species is a crucial conservation goal. This is particularly true for polar and sub-polar colonial seabirds, often immunologically naïve to new and emerging diseases. Here, we investigate the patterns of black-browed albatross (Thalassarche melanophris) chick mortality events unrelated to predation recorded between the 2004/05 and 2019/2020 breeding seasons in four colonies across the species range in the Falklands. The prevalence of these mortality events was highly variable across years, causing the death of between 3 and 40% of all chicks in the studied plots. With few exceptions, mortality was patchily distributed. Using clustering methodologies, we identified the spatio-temporal mortality clusters based on the nest locations and chick death date. Using generalised linear models and generalised additive mixed-effects models we found that chicks nearer the first mortality event were predicted to die before those in more distant nests. The probability of death increased with age and was highest for chicks close to nests where a chick had died previously. Our findings, along with the symptoms consistently exhibited by most deceased chicks in the study, strongly suggest the prevalence of a widespread infectious disease, potentially with a common aetiology, both in areas with regular and with very rare human presence. Understanding the causes driving these disease-related mortality events, which seem different from the outbreaks documented in the literature, is a conservation priority for the Falklands black-browed albatross population, which comprises over 70% of the species global population.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1007/s00300-020-02797-xpt_PT
dc.identifier.issn07224060
dc.identifier.urihttp://hdl.handle.net/10400.12/7923
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Verlagpt_PT
dc.relationMarine and Environmental Sciences Centre
dc.relationMarine and Environmental Sciences Centre
dc.relationCentre for Environmental and Marine Studies
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAlbatrosspt_PT
dc.subjectThalassarche melanophrispt_PT
dc.subjectChick mortalitypt_PT
dc.subjectBroodingpt_PT
dc.subjectCluster analysispt_PT
dc.subjectDiseasept_PT
dc.titleSpatial and temporal aggregation of albatross chick mortality events in the Falklands suggests a role for an unidentified infectious diseasept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04292%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50017%2F2020/PT
oaire.citation.conferencePlaceGermanypt_PT
oaire.citation.endPage10pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titlePolar Biologypt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameVentura
person.familyNamePedro Granadeiro
person.familyNameMatias
person.familyNameCatry
person.givenNameFrancesco
person.givenNameJosé
person.givenNameRafael
person.givenNamePaulo
person.identifierSlxtKi4AAAAJ
person.identifier.ciencia-id3114-23EB-2E89
person.identifier.ciencia-idEF1A-6A4A-013A
person.identifier.orcid0000-0003-3398-8265
person.identifier.orcid0000-0002-7207-3474
person.identifier.orcid0000-0002-5072-0538
person.identifier.orcid0000-0003-3000-0522
person.identifier.ridI-5408-2013
person.identifier.scopus-author-id6603758245
person.identifier.scopus-author-id7003725276
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.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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