To understand the impacts of these threats on mammal populations, we initiated preliminary mammal surveys in the Sibinacocha watershed in 2000. Rodent surveys conducted in 2000, 2001, and 2005 resulted in the documentation of 8 rodent species in 5 genera (Auliscomys boliviensis, Auliscomys pictus, Chinchillula sahamae, Abrothrix jelski, Phyllotis osilae, Punomys kofordi, Calomys lepidus, and Lagidium peruanum). In 2014, we deployed camera traps at 3 locations. Since then, the cameras have photographed puma (Puma concolor), pampas cat (Leopardus colocolo), culpeo fox (Lycalopex culpaeus), vicuña (Vicugna vicugna), and the taruca or Andean deer (Hippocamelus antisensis), most at elevations exceeding 17,000 ft (5,200m).
Additionally, we have observed tracks that may be of the endangered Andean Cat (Leopardus jacobita). The species is one of the top five most endangered cats in the world and very little is known about its distribution, especially in the Cordillera Vilcanota where its existence has be documented only by one study in an adjacent watershed.
Of the six large mammals documented in this region, only one, the culpeo fox, is not currently listed as endangered, vulnerable, or near threatened. Almost nothing is known about the population status of any rodent species.