Abstract

BOLGERI, María J  and  NOVARO, Andrés J. Variación espacial en la depredación por puma (Puma concolor) sobre guanacos (Lama guanicoe) en la Payunia, Mendoza, Argentina. Mastozool. neotrop. [online]. 2015, vol.22, n.2, pp.255-264. ISSN 0327-9383.

We studied patterns of puma predation on guanacos in two sites with different topography in La Payunia, Mendoza, Argentina, analyzing selection of prey by sex, age and nutritional condition. Predation was the most frequent mortality cause (73%, n = 118 carcasses) and was more frequent than expected according to guanaco density in the more rugged eastern site. We did not find prey selection by age nor nutritional condition, but pumas selected guanaco males over females, in contrast with other studies. In winter, when forage availability declines, the frequency of carcasses in poor nutritional condition increased.

Keywords : Predator-prey; Prey selection; Seasonal migration.

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