Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat

Detalhes bibliográficos
Autor(a) principal: Dias, Paulo Sousa
Data de Publicação: 2012
Outros Autores: Granadeiro, J. P., Catry, Paulo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.12/8152
Resumo: The diel vertical migration of zooplankton and many other organisms is likely to affect the foraging behaviour of marine predators. Among these, shallow divers, such as many seabirds, are particularly constrained by the surface availability of prey items. We analysed the atsea activity of a surface predator of epipelagic and mesopelagic prey, Cory’s shearwater Calonectris diomedea, on its several wintering areas (spread throughout the temperate Atlantic Ocean and the Agulhas Current). Individual shearwaters were mainly diurnal when wintering in warmer and shallower waters of the Benguela, Agulhas and Brazilian Currents, and comparatively more nocturnal in colder and deeper waters of the Central South Atlantic and the Northwest Atlantic. Nocturnality also correlated positively with bathymetry and negatively with sea-surface temperature within a single wintering area. This is possibly related to the relative availability of epipelagic and mesopelagic prey in different oceanic sectors, and constitutes the first evidence of such flexibility in the daily routines of a top marine predator across broad spatial scales, with clear expression at population and individual levels
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spelling Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitatForaging behaviourSeabirdsDiel vertical migrationSea-surface temperatureBathymetryThe diel vertical migration of zooplankton and many other organisms is likely to affect the foraging behaviour of marine predators. Among these, shallow divers, such as many seabirds, are particularly constrained by the surface availability of prey items. We analysed the atsea activity of a surface predator of epipelagic and mesopelagic prey, Cory’s shearwater Calonectris diomedea, on its several wintering areas (spread throughout the temperate Atlantic Ocean and the Agulhas Current). Individual shearwaters were mainly diurnal when wintering in warmer and shallower waters of the Benguela, Agulhas and Brazilian Currents, and comparatively more nocturnal in colder and deeper waters of the Central South Atlantic and the Northwest Atlantic. Nocturnality also correlated positively with bathymetry and negatively with sea-surface temperature within a single wintering area. This is possibly related to the relative availability of epipelagic and mesopelagic prey in different oceanic sectors, and constitutes the first evidence of such flexibility in the daily routines of a top marine predator across broad spatial scales, with clear expression at population and individual levelsFundação para a Ciência e Tecnologia - FCTInter-ResearchRepositório do ISPADias, Paulo SousaGranadeiro, J. P.Catry, Paulo2021-05-26T16:39:40Z2012-01-01T00:00:00Z2012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.12/8152engDias, P. S., Granadeiro, J. P., Catry, P.(2012). Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat. Marine Ecology Progress Series, 467, 245-252 Doi: 10.3354/meps099660171863010.3354/meps09966info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T16:43:56Zoai:repositorio.ispa.pt:10400.12/8152Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:25:59.253217Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat
title Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat
spellingShingle Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat
Dias, Paulo Sousa
Foraging behaviour
Seabirds
Diel vertical migration
Sea-surface temperature
Bathymetry
title_short Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat
title_full Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat
title_fullStr Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat
title_full_unstemmed Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat
title_sort Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat
author Dias, Paulo Sousa
author_facet Dias, Paulo Sousa
Granadeiro, J. P.
Catry, Paulo
author_role author
author2 Granadeiro, J. P.
Catry, Paulo
author2_role author
author
dc.contributor.none.fl_str_mv Repositório do ISPA
dc.contributor.author.fl_str_mv Dias, Paulo Sousa
Granadeiro, J. P.
Catry, Paulo
dc.subject.por.fl_str_mv Foraging behaviour
Seabirds
Diel vertical migration
Sea-surface temperature
Bathymetry
topic Foraging behaviour
Seabirds
Diel vertical migration
Sea-surface temperature
Bathymetry
description The diel vertical migration of zooplankton and many other organisms is likely to affect the foraging behaviour of marine predators. Among these, shallow divers, such as many seabirds, are particularly constrained by the surface availability of prey items. We analysed the atsea activity of a surface predator of epipelagic and mesopelagic prey, Cory’s shearwater Calonectris diomedea, on its several wintering areas (spread throughout the temperate Atlantic Ocean and the Agulhas Current). Individual shearwaters were mainly diurnal when wintering in warmer and shallower waters of the Benguela, Agulhas and Brazilian Currents, and comparatively more nocturnal in colder and deeper waters of the Central South Atlantic and the Northwest Atlantic. Nocturnality also correlated positively with bathymetry and negatively with sea-surface temperature within a single wintering area. This is possibly related to the relative availability of epipelagic and mesopelagic prey in different oceanic sectors, and constitutes the first evidence of such flexibility in the daily routines of a top marine predator across broad spatial scales, with clear expression at population and individual levels
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01T00:00:00Z
2012-01-01T00:00:00Z
2021-05-26T16:39:40Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.12/8152
url http://hdl.handle.net/10400.12/8152
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Dias, P. S., Granadeiro, J. P., Catry, P.(2012). Working the day or the night shift? Foraging schedules of Cory’s shearwaters vary according to marine habitat. Marine Ecology Progress Series, 467, 245-252 Doi: 10.3354/meps09966
01718630
10.3354/meps09966
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Inter-Research
publisher.none.fl_str_mv Inter-Research
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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