Artículo
Food habits of the Crested Caracara (Caracara plancus) in the Andean Patagonia: the role of breeding constraints
Fecha de publicación:
04/2001
Editorial:
Academic Press Ltd - Elsevier Science Ltd
Revista:
Journal of Arid Environments
ISSN:
0140-1963
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Crested caracara (Caracara plancus) in Patagonia have a generalist diet, feeding mainly on mammalian carrion and arthropods. Vertebrate prey (mammals, birds and reptiles) are primarily captured to feed nestlings and marginally as food for breeding or immature adults. Immature birds are less selective in their diet than breeding adults, consuming mainly large carrion and arthropods. This may be caused by intraspecific hierarchical interactions where immature birds are displaced by adult breeding birds to less profitable prey. On the other hand, differences between breeding adults and nestlings fit central place foraging theory predictions. Adults consume smaller prey (mostly arthropods), and take larger prey (mostly vertebrates) to the nest.
Palabras clave:
CARACARA PLANCUS
,
CENTRAL PLACE FORAGING
,
CRESTED CARACARA
,
DIET
,
PATAGONIA
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Travaini, Alejandro; Donázar, José Antonio; Ceballos, O.; Hiraldo, Fernando; Food habits of the Crested Caracara (Caracara plancus) in the Andean Patagonia: the role of breeding constraints; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 48; 2; 4-2001; 211-219
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