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dc.contributor.author
Sala, Juan Emilio
dc.contributor.author
Wilson, Rory P.
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Frere, Esteban
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Quintana, Flavio Roberto
dc.date.available
2017-07-07T21:17:05Z
dc.date.issued
2014-04-16
dc.identifier.citation
Sala, Juan Emilio; Wilson, Rory P.; Frere, Esteban; Quintana, Flavio Roberto; Flexible foraging for finding fish: variable diving patterns in Magellanic penguins Spheniscus magellanicus from different colonies; Wiley Blackwell Publishing, Inc; Journal Fur Ornithologie; 155; 3; 16-4-2014; 801-817
dc.identifier.issn
0021-8375
dc.identifier.uri
http://hdl.handle.net/11336/19939
dc.description.abstract
Seabirds have to deal with environmental variability and are predicted to modulate foraging behavior to maximize fitness, with particularly strong selection pressure for optimal behavior during chick provisioning when energy demands are high. We reported data from 42 breeding birds equipped during the early chick-rearing period with depth recorders at four different colonies [Punta Norte (42°S), Bahía Bustamante (45°S), Puerto Deseado (47°S) and Puerto San Julián (49°S)] in patagonian Argentina. Although Magellanic penguins are purported to show little flexibility in foraging behavior, we discovered marked inter-colony differences in diving behavior. Even though the southern marine ecosystems, in general, and the area exploited by Magellanic penguins from the studied colonies, in particular, are usually characterized by their stability, we cannot entirely exclude that interannual differences may have also affected our results. The colonies located in the center of the breeding distribution, Bahía Bustamante and Puerto Deseado, showed the greatest diving and foraging effort with Bahía Bustamante penguins having the deepest and longest dives of all birds and requiring the longest post-dive recovery durations at the surface. Puerto Deseado had the birds with the highest values of diving effort parameters. Penguins from both colonies also had the highest descent and ascent rates during dives. We assume that the clear variation in diving behavior reflects the response of the birds to the varying prey types and availability around the different colonies, but note that, despite this, some colonies fare markedly better than others in breeding.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Diving Behavior
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Diving Effort
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Foraging Effort
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Pheniscus Magellanicus
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Patagonia
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Concervation
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Spheniscus Magellanicus
dc.subject.classification
Ecología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Flexible foraging for finding fish: variable diving patterns in Magellanic penguins Spheniscus magellanicus from different colonies
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-30T13:28:09Z
dc.identifier.eissn
2193-7192
dc.journal.volume
155
dc.journal.number
3
dc.journal.pagination
801-817
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Sala, Juan Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
dc.description.fil
Fil: Wilson, Rory P.. Swansea University; Reino Unido
dc.description.fil
Fil: Frere, Esteban. Wildlife Conservation Society; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santa Cruz. Universidad Tecnológica Nacional. Facultad Regional Santa Cruz. Centro de Investigaciones y Transferencia de Santa Cruz. Universidad Nacional de la Patagonia Austral. Centro de Investigaciones y Transferencia de Santa Cruz.; Argentina
dc.description.fil
Fil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados Unidos
dc.journal.title
Journal Fur Ornithologie
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10336-014-1065-5
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com
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