Mostrar el registro sencillo del ítem
dc.contributor.author
Harris, Sabrina
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Saenz Samaniego, Ricardo Andres
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Raya Rey, Andrea Nélida
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.date.available
2020-01-14T20:17:01Z
dc.date.issued
2016-12
dc.identifier.citation
Harris, Sabrina; Saenz Samaniego, Ricardo Andres; Raya Rey, Andrea Nélida; Insights into diet and foraging behavior of imperial shags (Phalacrocorax atriceps) breeding at Staten and Becasses Islands, Tierra Del Fuego, Argentina; Wilson Ornithological Society; Wilson Journal of Ornithology; 128; 4; 12-2016; 811-820
dc.identifier.issn
1559-4491
dc.identifier.uri
http://hdl.handle.net/11336/94690
dc.description.abstract
Diet and behavior are essential aspects of ecological studies, and are even more informative if both aspects are studied together. We collected samples of feathers (n = 10 of unknown sex at Becasses Island in 2013) and of both feathers and blood at Staten Island (n = 5 males and n = 5 females in 2011 and in 2013) from Imperial shags (Phalacrocorax atriceps). In addition, GPS devices were deployed on two individuals at each location that allowed us to record one or two foraging trips each. Stable isotope composition of carbon and nitrogen in blood differed amongst years and between sexes, albeit marginally within each year at Staten Island. Feather stable isotopes of carbon and nitrogen did not differ amongst sexes or years at Staten Island and between Staten and Becasses islands to show individuals did not have significantly different diets amongst locations during pre-molt. Foraging behavior parameters did not differ between individuals as they all searched in shallow waters and close to shore. Individuals flew to their feeding grounds and searched intensively at the furthest point reached by diving interspersed with floating on the surface. These results show individuals feed on similar prey, at least during pre-molt, and would seem to behave in a similar way at both locations while breeding, though sample size is too small to generalize on their behavior. The differences in isotopic compositions amongst years for Staten Island could be showing the fluctuations that occur among seasons in the isotopic signatures of prey, and in consequence, in seabirds over time.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wilson Ornithological Society
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
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
dc.subject
PHALACROCORAX ATRICEPS, STABLE ISOTOPES
dc.subject
TIERRA DEL FUEGO
dc.subject.classification
Ecología
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Ciencias Biológicas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
Insights into diet and foraging behavior of imperial shags (Phalacrocorax atriceps) breeding at Staten and Becasses Islands, Tierra Del Fuego, 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
2020-01-13T14:23:03Z
dc.journal.volume
128
dc.journal.number
4
dc.journal.pagination
811-820
dc.journal.pais
Estados Unidos
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.description.fil
Fil: Harris, Sabrina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Saenz Samaniego, Ricardo Andres. 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
Wilson Journal of Ornithology
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/The-Wilson-Journal-of-Ornithology/volume-128/issue-4/15-141.1/Insights-Into-Diet-and-Foraging-Behavior-of-Imperial-Shags-Phalacrocorax/10.1676/15-141.1.short
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1676/15-141.1
Archivos asociados