This species is known only from Horto Florestal de Santa Cruz, Itaguaí Municipality, in the state of Rio de Janeiro, south-eastern Brazil. The only known site is very close to sea level.
Habitat and Ecology
It was probably originally a primary forest species, but now lives only in secondary forest, since this is all that remains within its range. It is usually found near ponds in forest. The eggs are laid in a foam nest on the surface of temporary pools.
It has a very small, but stable, population.
The major threats are habitat loss due to conversion of habitat to eucalyptus plantations, and human disturbance.
It occurs in the Florestal Nacional Mario Xavier protected area, but this is poorly protected and in need of improved management.
Red List Status
Listed as Endangered because its Extent of Occurrence is less than 5,000 km2 and its Area Of Occupancy is less than 500km2, all individuals are in a single location, and there is continuing decline in the extent and quality of its habitat in the State of Rio de Janeiro.
Luciana Barreto Nascimento, Sergio Potsch de Carvalho-e-Silva 2004. Physalaemus soaresi. The IUCN Red List of Threatened Species 2004: e.T57278A11597601. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T57278A11597601.en