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Mastozoología neotropical

versión impresa ISSN 0327-9383


CIRIGNOLI, Sebastián et al. Mammals of the Valle del Cuña Pirú Reserve, Misiones, Argentina. Mastozool. neotrop. [online]. 2011, vol.18, n.1, pp.25-43. ISSN 0327-9383.

Here we present the results of surveys conducted at the Reserva Privada de Usos Múltiples Valle del Cuña Pirú (Misiones, Argentina) with the objective to assess the diversity of mammals in this area. The study area is placed at the middle part of the course of arroyo Cuña Pirú, near Aristóbulo del Valle, where phytogeographical communities of Selvas Mixtas and Campos districts intermix, both belonging to the Upper Paraná Atlantic Forest. Nine field works allowed us to register 58 native and three exotic species, included in 24 families and 10 orders. The richnest recorded families were Cricetidae (11 species) and Didelphidae (7 species); the bats were under-represented due to methodological samping bias. Typical species of open environments from southern Misiones and northern Corrientes, such as Cavia aperea, Lutreolina crassicaudata, and Necromys lasiurus, were recorded only in cultivated fields and fragmented patches of natural grasslands. We propose that Myrmecophaga tridactyla and Pteronura brasiliensis should be considered as extirpated from this area. The mammals constitute an important food resource for local aboriginal groups that inhabit the reserve (Mbyá communities), but they are also under severe hunting pressure by most of local dwellers. Hunting activities added to habitat fragmentation could increase extinctions at local scale, specifically for some of the larger mammals (e. g., Tapirus terrestris, Panthera onca).

Palabras clave : Conservation; Mbyá; Upper Paraná Atlantic Forest; Taxonomy.

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