Vulnerability of small and medium-sized prey mammals in relation to their habitat preferences, age classes and locomotion types in the temperate Monte Desert, Argentina

摘要: In this study we examined predation by small felids upon and medium-sized prey mammals in the central region of Monte Desert. We analyzed degree vulnerability relation to their habitat use patterns, modes locomotion age classes. Medium rodents were predominant diet cats. The most consumed mammal was Akodon molinae, which inhabits areas dense cover, while species occurring open habitats such as Eligmodontia typus less consumed. Among mammals, Galea leucoblephara that depends on patches with high plant cover for refuge more than Microcavia australis lives colonies displays a complex set antipredator strategies. Prey selectivity showed E. typus, uses bipedal an erratic escape behaviour, greater proportion its availability. suggest although specialized locomotory mode would diminish predator attacks, preference increase probability predator–prey encounter. Consumption focuses mostly adult individuals. However, found significant consumption senile individuals A. points out tends be towards maturity species.