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Seabird abundance and distribution off western iberian waters estimated through aerial surveys

dc.contributor.authorAraújo, Hélder
dc.contributor.authorRodrigues, Pedro
dc.contributor.authorBastos Santos, Jorge
dc.contributor.authorFerreira, Marisa
dc.contributor.authorPereira, Andreia
dc.contributor.authorMartinez Cedeira, Jose
dc.contributor.authorVingada, José
dc.contributor.authorEira, Catarina
dc.date.accessioned2023-02-13T17:29:42Z
dc.date.available2023-02-13T17:29:42Z
dc.date.issued2022-01
dc.description.abstractWestern Iberian waters are important migratory flyways, stopover sites, and wintering areas for several of the world’s seabird species. To describe seabird species composition, distribution, and abundance in these waters, we performed six aerial surveys in September and/or October of each year, 2010–2015, covering 74 840 km2. Using line transect methodology, 27 396 seabird sightings from 17 taxonomic groups were recorded along 10 496.3 nautical miles (19 433 km). Using the program “Distance,” annual and overall abundance estimates were obtained for nine taxonomic groups: Balearic Shearwater Puffinus mauretanicus, Great Shearwater Ardenna gravis, Cory’s Shearwater Calonectris borealis, shearwaters, Northern Gannet Morus bassanus, Sabine’s Gull Xema sabini, Great Skua Stercorarius skua, storm petrels, and Red Phalarope Phalaropus fulicarius. For the six-year period, Northern Gannet was the most abundant species (89 630 individuals, coefficient of variation [CV] = 6.28%), followed by Cory’s Shearwater (25 044 individuals, CV = 7.56%) and Balearic Shearwater (13 632 individuals, CV = 20.81%). The remaining taxonomic groups exhibited variable abundances. Results confirm that the study area is important to several seabird species, providing baseline estimates to inform conservation policies and instruments, such as the Birds Directive or the Marine Strategy Framework Directive.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/22254
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationThis work was partly funded by the Portuguese Wildlife Society and projects funded by SafeSea EEA-Grants, FAME (Project 2009- 1/089) and European Commission’s Life Program (MarPro NAT/ PT/00038). This study was also partly supported by the Portuguese Foundation for Science and Technology (FCT) with Grants SFRH/ BD/30240/2006 to M. Ferreira, SFRH/BD/122890/2016 to A.T. Pereira and SFRH/BD/32841/2006 to P.C. Rodrigues. Thank you to the Foundation of Science and Technology/Ministério da Ciência Tecnologia e Ensino Superior (FCT/ MCTES) for providing financial support to CESAM (UIDP/50017/2020+UIDB/50017/20 20+LA/P/0094/2020) and to C. Eira.pt_PT
dc.subjectAerial surveyspt_PT
dc.subjectDistance Samplingpt_PT
dc.subjectGaliciapt_PT
dc.subjectMarine birdspt_PT
dc.subjectMSFDpt_PT
dc.subjectPortugalpt_PT
dc.subjectSpainpt_PT
dc.titleSeabird abundance and distribution off western iberian waters estimated through aerial surveyspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage80pt_PT
oaire.citation.startPage71pt_PT
oaire.citation.titleMarine Ornithologypt_PT
oaire.citation.volume50pt_PT
person.familyNameCorreia Rodrigues
person.givenNamePedro
person.identifier.ciencia-idC816-D0CD-CB44
person.identifier.orcid0000-0001-8862-2805
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3d448f45-1d39-477c-a908-26c1e293fe72
relation.isAuthorOfPublication.latestForDiscovery3d448f45-1d39-477c-a908-26c1e293fe72

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