This species can be found at 1,660-3,300m asl on the eastern face of the Andes in northern Ecuador (Sucumbios and Napo provinces) and southern Colombia (Caquetá and Putumayo departments). It is likely to be a little more widespread, in particular in areas between known sites.
Habitat and Ecology
This is a nocturnal, cloud forest species. Its ability to adapt to modified habitats is unknown. It is strongly associated with water and the edges of streams; some individuals occur on riparian vegetation, but the majority occurs on rocks in the watercourses. During the day it is possible to find them under rocks. It is presumed to breed by direct development, but the site of egg deposition is not known.
This species is reasonably common, and was found in great abundance along the road above western Caquetá in every stream in a transect in 1990.
The major threat is habitat loss caused by logging and agricultural development (livestock and illegal crops).
In Colombia it occurs in Parque Nacional Natural Alto Fragua. In Ecuador, its range overlaps with Reserva Ecológica Cayambe-Coca, and Reserva Ecológica Antisana.
Fernando Castro, Maria Isabel Herrera, Santiago Ron, Luis A. Coloma, John Lynch 2010. Pristimantis pugnax. In: IUCN 2014