This species is known only from the municipality of Ubatuba, on the northern coast of São Paulo State, Brazil. All specimens collected and observed were at an altitude of 0-50m asl. It probably has a genuinely restricted distribution that is characteristic of the Physalaemus signifer group to which it belongs.
Habitat and Ecology
This species is associated with ponds or leaf-litter of the coastal plain in the Atlantic rainforest. It reproduces on the forest floor near places that are prone to flooding. The eggs are laid in a foam nest built on the water surface, and are anchored to the margins of ponds, or alternatively, on the wet leaf-litter close to the ponds.
The population status of this species is unknown.
The major threats to this species are not known, but it might be affected by localized forest loss.
It has been collected in the Parque Estadual da Serra do Mar. There is a need for further survey work to determine, and monitor, the population status of this species.
Red List Status
Listed as Vulnerable because it is known from fewer than five locations.
Neil Cox, Simon Stuart 2004. Physalaemus atlanticus. The IUCN Red List of Threatened Species 2004: e.T57240A11607388. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T57240A11607388.en .Downloaded on 13 November 2018