Cycloramphus boraceiensis
family: Cycloramphidae

© 1992 Celio Haddad (1 of 5)
Conservation Status (definitions)
IUCN (Red List) Status Least Concern (LC)
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Brazil


View distribution map using BerkeleyMapper.


From the IUCN Red List Species Account:


Range Description

This species occurs in the Serra do Mar in the southeastern part of the state of Rio de Janeiro and the northern half of the state of São Paulo, including the offshore islands of Ilha Grande and São Sebastião. It occurs up to 800m asl. It is no longer known from the type locality, Boracéia, where some other species have also declined or disappeared in suitable habitat.

Habitat and Ecology

This species is common on the wet rocky faces of small streams in primary and secondary forest. Larvae were collected from the wet seeping rock walls. It has not been collected outside forest.


It is a common species. There is no longer a population at Boracéia (it was last recorded there in 1988), but it has not been observed to decline elsewhere. This decline is reminiscent of disappearances of stream-breeding, high-altitude frog species in other parts of the wet tropics.

Population Trend


Major Threats

Habitat loss due to infrastructure development for human settlement is a major threat, and this is even taking place in some protected areas, even though illegal. However, it appears that the species might also have experienced an unexplained decline in an area of apparently suitable habitat in a higher altitude part of its range. Such a decline is potentially ominous, and chytridiomycosis cannot be ruled out.

Conservation Actions

The range of the species includes several protected areas. Improvement of law enforcement within protected areas to prevent habitat loss due to infrastructure development is needed. More research into the species' Extent of Occurrence is needed.

Red List Status

Least Concern (LC)


Listed as Least Concern in view of its relatively wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.


Sergio Potsch de Carvalho-e-Silva, Bruno Pimenta 2004. Cycloramphus boraceiensis. The IUCN Red List of Threatened Species 2004: e.T56360A11453273. .Downloaded on 23 January 2019


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