This species is known from Santa Catarina and Rio Grande do Sul, Brazil, at elevations of 0-1,200m asl.
Habitat and Ecology
It occurs in forests, but also adapts well to human-disturbed habitats. It breeds in small temporary waterbodies such as puddles, gutters, or ditches. The spawn is deposited in small foam nests under roots, leaves or branches at the margins of waterbodies.
It is abundant and stable in suitable habitats.
It is probably locally impacted by severe habitat loss, for example from commercial cattle ranching, expanding wood plantations, clear felling, and expanding human settlements. However, it is generally adaptable and not significantly threatened.
It occurs in several protected areas.
Red List Status
Least Concern (LC)
Débora Silvano, Paulo Garcia, Axel Kwet 2004. Physalaemus nanus. In: IUCN 2014