Artículos de revistas
Agonistic behavior between introduced beaver (Castor canadensis) and endemic culpeo fox (Pseudalopex culpaeus lycoides) in Tierra del Fuego Island and implications
Fecha
2018Registro en:
Acta Ethologica, Volumen 21, Issue 1, 2018, Pages 29-34
08739749
10.1007/s10211-017-0278-z
Autor
Tadich Gallo, Tamara
Novaro, Andrés J.
Kunzle, Pablo
Chacón, Mauricio
Barrientos, Miguel
Briceño Urzúa, Cristóbal
Institución
Resumen
© 2017, Springer-Verlag GmbH Germany and ISPA. Over the last 70 years, introduced beavers (Castor canadensis) have been successful in establishing and modifying the landscape of southernmost Patagonia. Habitat availability and lack of large carnivorous predators have contributed to this success. The Fuegian culpeo fox (Pseudalopex culpaeus lycoides) is an endangered subspecies and the largest native predator found in Tierra del Fuego Island. The predatory behavior of a culpeo towards a beaver was studied by analyzing a video footage recovered by tourists, and consumption of beaver was documented with camera traps. An ethogram of the predatory behavior sequence was developed and true durations and percentage of time allocated to each behavior were analyzed. The “capture” and “watch” behaviors had the highest durations within the predatory sequence (61.83 and 42.61 s, respectively), while “rest” was the most frequent maintenance behavior observed (93.82 s). The culpeo may provide the onl