Centrolene bacatum is known from three localities: 11.2 km west-southwest of Plan de Milagro (03 02′S, 78 35′W, 2350 m), Province of Morona-Santiago, Ecuador; Yanayacu Biological Station (0 41′S, 77 53′W; 2100 m), Province of Napo, Ecuador; and 35 km south-east of San Francisco (01 07′N, 76 49′W, 1950 m), Department of Putumayo, Colombia (Guayasamin et al., 2006).
Habitat and Ecology
The species inhabits montane primary forest and to a lesser extent secondary forest. Individuals have been found on leaves approximately 130–200 cm above streams, where breeding takes place. Egg clutches are deposited on the upper side of different leaves. Egg clutches have been found to contain 16-20 eggs; embryos have a whitish coloration. Males call from the upper side of leaves (Guayasamin et al., 2006). The species reproduces in the month of April in permanent streams (J.M. Guayasamin, pers. comm. 2008).
Ten individuals of Centrolene bacatum were found at Yanayacu Biological Station during 3 years of inventory work; it is considered to be the most abundant centrolenid at this station (Guayasamin et al., 2006). At Yanayacu, calls of this species are frequently heard along streams, and it is considered to be relatively common (J.M. Guayasamin, pers. comm. 2008).
The species' habitat is threatened by agricultural development, logging, and human settlement.
The only protected area from which it is currently known is Yanayacu Biological Station.
Juan Manuel Guayasamin 2010. Centrolene bacatum. In: IUCN 2014