Abstract

ASTIAZARAN AZCARRAGA, Alberto. Richness and abundance of medium sized mammals from the Tirimbina biological reserve at Costa Rica. Therya [online]. 2013, vol.4, n.3, pp.597-601. ISSN 2007-3364.  https://doi.org/10.12933/therya-13-144.

Costa Rica is a country whose geographical location plays an important role as a filter for species from North y South-America resulting in the establishment a great diversity of species. In Costa Rica there have been registered a total of 245 species of mammals of the 4,381 registered worldwide, having the 5.6% of global diversity. From the 245 species, only 48 species are considered as medium-sized mammals. In this study we evaluated the richness and the abundance of medium-sized mammals of the Tirimbina Biological Reserve through trapping, making diurnal and nocturnal walks and looking for footprints. There was a richness of 17 species of medium-sized mammals, where the most abundant species were raccoons (Procyon lotor) y opossums (Didelphis marsupialis).

Keywords : Conservation; Costa Rica; Habitat fragmentation; Raccoon; Traps.