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dc.contributor.author
Harris, Sabrina
dc.contributor.author
Quintana, Flavio Roberto
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Ciancio Blanc, Javier Ernesto
dc.contributor.author
Riccialdelli, Luciana
dc.contributor.author
Raya Rey, Andrea Nélida
dc.date.available
2016-05-09T19:07:47Z
dc.date.issued
2015-12
dc.identifier.citation
Harris, Sabrina; Quintana, Flavio Roberto; Ciancio Blanc, Javier Ernesto; Riccialdelli, Luciana; Raya Rey, Andrea Nélida; Linking foraging behavior and diet in a diving seabird; Wiley; Marine Ecology; 37; 2; 12-2015; 419–432
dc.identifier.issn
0173-9565
dc.identifier.uri
http://hdl.handle.net/11336/5579
dc.description.abstract
Foraging behavior and diet of breeding seabirds may be analysed simultaneously with the combined use of remote sensing devices and stable isotope analysis. Imperial shag, Phalacrocorax atriceps, breeding at Punta León colony, Argentina, were equipped with global positioning system (GPS) loggers to record foraging trips and blood samples were taken after removal of the devices in order to analyse their nitrogen and carbon stable isotope composition in whole blood and plasma. Whole blood was correlated to plasma isotopic composition for each individual (n = 35), linking diet in the short and medium term. Sexes did not differ in isotopic signatures. The maximum distance reached and the total number of dives that individuals made on two consecutive foraging trips were correlated to their plasma nitrogen isotopic signature. Individuals that went further from the colony and dived fewer times presented more positive signatures, indicative of benthic prey consumption (e.g. Raneya brasiliensis). Diet was predominantly benthic with some individuals incorporating pelagic prey (Engraulis anchoita) and even cephalopods (Octopus tehuelchus). Within breeding pairs (n = 9), different combinations of foraging and prey preferences were observed. Estimated trophic levels of these individuals were similar to those of the same species in other colonies further south along the Patagonian coast.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Diet
dc.subject
Foraging Behavior
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Seabirds
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Stable Isotopes
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Ecología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Linking foraging behavior and diet in a diving seabird
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-04-28T17:13:00Z
dc.journal.volume
37
dc.journal.number
2
dc.journal.pagination
419–432
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Londres
dc.description.fil
Fil: Harris, Sabrina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; 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.description.fil
Fil: Ciancio Blanc, Javier Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
dc.description.fil
Fil: Riccialdelli, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.journal.title
Marine Ecology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/maec.12327/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/maec.12327
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/hdl/10.1111/maec.12327
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