This species is present in suitable habitat throughout Amazonian Ecuador, Peru and presumably western Brazil. It ranges up to 1,000m asl.
Habitat and Ecology
This is an arboreal species occurring in primary and secondary forests (Duellman, 1978; Rodríguez and Duellman, 1994); this includes seasonally flooded, terra firme and upland tropical forests. It is presumed to breed by direct development; the egg deposition site is not known. It is not recorded from degraded habitats.
It is frequent in good habitat.
There are no major threats; it is a widespread species with large areas of suitable habitat remaining. There is some localized habitat loss due to general human activities such as collection of wood, logging, agriculture (crops, livestock etc.), oil exploration and colonization.
In Ecuador this species is known from many protected areas including Reserva Biológica Limoncocha, and Parque Nacional Yasuní. In Peru the range of this species overlaps with Manu Reserve Biosphere of southern and Pacaya-Samiria Reserve Zone of northern Peru.
Lily Rodríguez, Jorge Luis Martinez, Luis A. Coloma, Santiago Ron, Diego Cisneros-Heredia, Ariadne Angulo 2004. Pristimantis diadematus. In: IUCN 2014