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Changes and consistencies in marine and coastal bird numbers on Kidney Island (Falkland Islands) over half a century

2019Journal article Restricted access
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dc.contributor.authorCatry, Paulo X
dc.contributor.authorClark, T. J.
dc.contributor.authorCrofts, Sarah
dc.contributor.authorStanworth, Andrew J.
dc.contributor.authorWakefield, Ewan
dc.date.accessioned2019-10-31T19:23:15Z
dc.date.available2019-10-31T19:23:15Z
dc.date.issued2019
dc.description.abstractDetecting change is necessary for effective ecosystem management, yet temporal data on key ecosystem components are lacking for many polar and subpolar regions. For example, although the Falkland Islands hosts internationally important marine and coastal bird populations, few of these were surveyed until the late twentieth century. The avifauna of one small island, Kidney Island, was surveyed between 1958 and 1963, however. This typical tussac-covered island has remained free of non-native predators, so changes in its avifauna may reflect variation in the wider marine environment. In order to obtain a rare snapshot of such changes, we re-surveyed Kidney Island’s avifauna between 2017 and 2019, counting either individuals, breeding pairs or nest sites of marine and coastal waterbirds. Waterfowl, waders and cormorant populations were broadly stable, but several populations showed profound differences over the six decades between surveys. In particular, Southern Rockhopper penguins Eudyptes chrysocome collapsed from > 3000 to 200 pairs, while Sooty Shearwaters Ardenna grisea expanded by two orders of magnitude. Due to its isolation and tight fisheries management, the Falklands marine environment is assumed to be relatively pristine. Our limited results suggest that sufficient changes may nevertheless have occurred in the region’s marine ecosystem to have detectable impacts on breeding seabirds.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPolar Biology, 42(11), 1-6. Doi: 10.1007/s00300-019-02587-0pt_PT
dc.identifier.doi10.1007/s00300-019-02587-0pt_PT
dc.identifier.issn07224060
dc.identifier.urihttp://hdl.handle.net/10400.12/7206
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Verlagpt_PT
dc.relationMARE-UID/ MAR/04292/2019pt_PT
dc.relationIF/00502/2013/CP1186/ CT0003pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectKelp Goosept_PT
dc.subjectFalkland Steamer duckpt_PT
dc.subjectRockhopper penguinpt_PT
dc.subjectArdenna gravispt_PT
dc.subjectHaematopus aterpt_PT
dc.subjectFalkland Islandspt_PT
dc.titleChanges and consistencies in marine and coastal bird numbers on Kidney Island (Falkland Islands) over half a centurypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceGermanypt_PT
oaire.citation.endPage6pt_PT
oaire.citation.issue11pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titlePolar Biologypt_PT
oaire.citation.volume42pt_PT
person.familyNameCatry
person.familyNameWakefield
person.givenNamePaulo
person.givenNameEwan
person.identifier.ciencia-idEF1A-6A4A-013A
person.identifier.ciencia-id6318-F7FF-05F2
person.identifier.orcid0000-0003-3000-0522
person.identifier.orcid0000-0002-2586-1232
person.identifier.ridI-5408-2013
person.identifier.scopus-author-id7003725276
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication2cfe93c3-17bb-4d1a-800f-7a34fbd47927
relation.isAuthorOfPublicationd7cfff7f-d425-4ed3-8d5f-139e96d2fec1
relation.isAuthorOfPublication.latestForDiscovery2cfe93c3-17bb-4d1a-800f-7a34fbd47927

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