This species occurs on the Pacific slopes of the western Andes in northern Ecuador (Carchi, Imabura, Pichincha Province) and southern Colombia (departments of Cauca and Nariño), from 1,780-2,700m asl.
Habitat and Ecology
This is a montane tropical cloud forest species, and is present in humid microhabitats. At night,it perches on branches and herbaceous vegetation immediately above small streams and sits on rock faces in the spray zones of waterfalls; some have been found in crevices or between rocks in small streams (Lynch and Duellman 1997). It is presumed to be a species that breeds by direct development, but the site of egg deposition is not known. The ability of this species to adapt to modified habitats is unknown.
In 1977, this species was recorded as abundant in Carchi and Imbabura in Ecuador. However, during surveys conducted between 1997 and 2003, it was found to be rare at many localities
Habitat loss due to logging and agricultural development (including the planting of illegal crops) is a major threat. Some other species of Eleutherodactylus that are associated with streams have undergone dramatic declines and disappearances, possibly due to chytridiomycosis, so the status of this species should be monitored carefully.
In Colombia, it is recorded from Parque Nacional Natural Munchique (Cauca) and La Planada (Nariño). In Ecuador, its range overlaps with Reserva Geobotánica Pululahua.
Fernando Castro, Maria Isabel Herrera, Santiago Ron, Luis A. Coloma, Diego Almeida, John Lynch 2004. Pristimantis duellmani. In: IUCN 2014