This Andean species ranges along the western flank of the Cordillera Occidental from La Planada in the department of Nariño in extreme southern Colombia, south to Cotopaxi Province in Ecuador. Its altitudinal range is 1,140-3,000m asl. It might occur a little more widely.
Habitat and Ecology
It inhabits primary and secondary forest, and does not occur in open areas. It is arboreal in bushes and trees, and is associated with epiphytes in high vegetation. It is especially abundant along trails through cloud forest, particularly in the proximity of small streams. It breeds by direct development, and the eggs are deposited in leaf-litter.
It is a very common species.
The major threats are likely to be deforestation for agricultural development (including plantations, and the planting of illegal crops), logging, and human settlement, and pollution resulting from the spraying of illegal crops. Some other species of Eleutherodactylus that are associated with streams at high elevations have undergone dramatic declines and disappearances, possibly due to chytridiomycosis, so the status of this species should be monitored carefully.
In Ecuador, its geographic range overlaps with the Reserva Ecológica Cotacachi-Cayapas and the Reserva Ecológica Los Illinizas. In Colombia it occurs in the La Planda private reserve.
Fernando Castro, Santiago Ron, Luis A. Coloma, Mario Yánez-Muñoz, Diego Cisneros-Heredia 2004. Pristimantis calcarulatus. In: IUCN 2014