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Pacheco, V.; Marquez, G.; Salas, E.; Centty, O.
Diversidad de mam¡feros en la cuenca media del r¡o Tambopata, Puno, Per£
2011  Revista Peruana de Biologia (18): 231-244

This study documents the mammalian diversity in the Tambopata River middle basin, one of the most important information gaps in Peru. Five sites were evaluated in Puno (San Ferm¡n 850 m, Curva Alegre 950 m, Challohuma 1200 m, Yanahuaya 1600 m, and Yanacocha 1985 m). The trapping effort was 7072 trap-nights and 201 mistnet-nights. 76 species were recorded in the study area, including 16 species under some conservation's category. Bats and rodents were the most diverse orders (67.5%). The diversity indices of Shannon-Wiener and Simpson for small mammals show a moderate and mild negative correlation with elevation, respectively. Meanwhile the altitude is negatively correlated with the relative abundance (RA) of bats, and positively with the RA of non-volant mammals. The marsupials _Marmosa _(_Micoureus_) _demerarae_, _Marmosops bishopi _and _Marmosops impavidus_; the rodent _Neacomys musseri_, and bats _Platyrrhinus albericoi_, _P. masu_, _P. nigellus_, _Eumops auripendulus _and _Cormura brevirostris _are first records for the department of Puno. _Akodon baliolus _and _Oxymycterus juliacae _are considered valid species. The species _Sturnira lilium _and _Akodon baliolus _were those with the highest RA. Our records, added to published and unpublished data, indicate that the R¡o Tambopata watershed is habitat of 141 species of mammals. Finally, we recommend the extension of the southern part of the buffer zone of the PNBS to include the montane forests of Yanacocha, to protect the unique middle-elevation fauna of the R¡o Tambopata watershed.

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