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dc.contributor.author
Rosciano, Natalia Gimena
dc.contributor.author
Pütz, Klemens
dc.contributor.author
Polito, Michael J.
dc.contributor.author
Raya Rey, Andrea Nélida
dc.date.available
2023-01-09T19:11:22Z
dc.date.issued
2021-12
dc.identifier.citation
Rosciano, Natalia Gimena; Pütz, Klemens; Polito, Michael J.; Raya Rey, Andrea Nélida; Where’s the best supermarket deal? Female Southern Rockhopper Penguins (Eudyptes chrysocome) show variable foraging areas during the guard stage at Isla de los Estados, Argentina; National Research Council Canada-NRC Research Press; Canadian Journal of Zoology; 100; 1; 12-2021; 46-55
dc.identifier.issn
0008-4301
dc.identifier.uri
http://hdl.handle.net/11336/184006
dc.description.abstract
Understanding the spatial distribution of seabirds contributes to comprehending their ecological requirements and dispersion patterns. We studied the at-sea distribution of female Southern Rockhopper Penguins (Eudyptes chrysocome (J.R. Forster, 1781)) at Isla de los Estados colony during the early chick-rearing period. We used a clustering analysis approach to identify different groups according to the foraging trip (tracking and diving data from GPS and temperature and depth data loggers) and diet (d15N composition on blood samples) characteristics. Foraging trips differed in duration, location, and dive depths explored. Females in clusters 1 and 3 traveled longer distances and in opposite directions (36.3 6 21.3 and 40.3 6 14.0 km, respectively). Females in cluster 2 fed closer to the colony (16.8 6 7.8 km). Dives occurred in pelagic habitats. Higher d15N values suggested a greater proportion of fish (e.g., the Fuegian sprat, Sprattus fuegensis (Jenyns, 1842)) consumption in the northern foraging areas (cluster 1). The variability observed in the spatial distribution suggests flexibility in the foraging behavior of Southern Rockhopper Penguins and availability of adequate foraging areas within the colony range during the early chick-rearing period, both important features for Southern Rockhopper Penguin population. These results contribute to understanding the use of the Southern Ocean by marine mesopredators and top predators and to the marine spatial planning in the area.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
National Research Council Canada-NRC Research Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
AT-SEA DISTRIBUTION
dc.subject
DIVING BEHAVIOR
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EUDYPTES CHRYSOCOME
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ISLA DE LOS ESTADOS
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SOUTHERN ROCKHOPPER PENGUIN
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STABLE ISOTOPES
dc.subject
TRACKING
dc.subject.classification
Ecología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Where’s the best supermarket deal? Female Southern Rockhopper Penguins (Eudyptes chrysocome) show variable foraging areas during the guard stage at Isla de los Estados, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-10-06T13:10:47Z
dc.journal.volume
100
dc.journal.number
1
dc.journal.pagination
46-55
dc.journal.pais
Canadá
dc.journal.ciudad
Otawa
dc.description.fil
Fil: Rosciano, Natalia Gimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Pütz, Klemens. Antarctic Research Trust; Alemania
dc.description.fil
Fil: Polito, Michael J.. State University of Louisiana; Estados Unidos
dc.description.fil
Fil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego, Antártida e Islas del Atlántico Sur. Instituto de Ciencias Polares, Ambientales y Recursos Naturales; Argentina. Wildlife Conservation Society; Estados Unidos
dc.journal.title
Canadian Journal of Zoology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://cdnsciencepub.com/doi/full/10.1139/cjz-2021-0020
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1139/cjz-2021-0020
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