This species occurs on the Pacific slopes of the Cordillera Occidental in Colombia, in Antioquia, Choco, Cauca, Valle del Cauca, Nariño and Risaralda Departments, south to Cotopaxi Province in adjacent Ecuador. It is also known from the eastern slopes of the Cordlillera Central in the Department of Caldas, Colombia. In Ecuador it has been recorded from only five sites covering a relatively small area. It has been recorded at 1,780-2,650m asl.
Habitat and Ecology
It occurs on vegetation next to streams in montane forests, and is perhaps a little more arboreal than some other related species. It is not found in degraded habitats, but does occur in selectively logged forest. It breeds in streams, with the eggs laid on leaves overhanging the water.
It is very common in Colombia, but uncommon in Ecuador where it appears to have disappeared from Quebrada Zapadores in Pichincha Province, where it once occurred.
The major threat is habitat loss as a result of deforestation for agricultural development (including the planting of illegal crops), logging, and human settlement. Other threats include the introduction of alien predatory fish, and pollution resulting from the spraying of illegal crops. Like some other centrolenids, this species might also be affected by the movement of the cloud layer up the mountain sides as a result of climate change, resulting in reduced humidity within the altitudinal range of the species (probably exacerbated by habitat fragmentation). Chytridiomycosis is a possible future threat.
It occurs in several protected areas in Colombia, while in Ecuador its range overlaps with Reserva Ecológica Los Illinizas.
Wilmar Bolívar, Luis A. Coloma, Santiago Ron, Mario Yánez-Muñoz, Taran Grant 2004. Nymphargus griffithsi. In: IUCN 2014