INIBIOMA 20415
INSTITUTO DE INVESTIGACIONES EN BIODIVERSIDAD Y MEDIOAMBIENTE
Unidad Ejecutora - UE
artículos
Título:
Predator feeding ecology on Patagonian rocky outcrops: implications for colonies of mountain vizcacha (Lagidium viscacia).
Autor/es:
GALENDE G. & RAFFAELE E.
Revista:
STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT
Editorial:
TAYLOR & FRANCIS LTD
Referencias:
Lugar: Londres; Año: 2016
ISSN:
0165-0521
Resumen:
ABSTRACTOn 10 rocky outcrops with mountain vizcacha colonies, diets and trophic relations of fivepredator species were analyzed to evaluate their impact in vizcacha populations. Diets included17 prey items of which mammals represented 97% of biomass. Lagomorphs were the mostimportant prey, followed by sigmodontines, tuco-tucos, and mountain vizcachas. The Barn Owlwas a specialized predator, while the culpeo and lesser grison were generalized consumers.Predation of mountain vizcacha by Magellanic Horned Owls and culpeo foxes could increasevizcacha vulnerability because vizcacha populations are small and fragmented, and femalesproduce only one offspring per year.
