Amphibians of REGUA
The first research carried out on the amphibians at REGUA was a study in October and November 2004 on the density of leaf-litter frog species. The subsequent paper by Rocha et al. (2007) identified 12 frog species associated with the forest floor leaf-litter. A ten year study by Almeida-Gomes et al. (2014) of the herpetofauna at REGUA found 73 amphibian species.
Nine species endemic to Rio de Janeiro state occur at REGUA, as well as one non-native species – American Bullfrog Lithobates catesbeianus. 200 amphibian species are known to occur in Rio de Janeiro state, so more are likely to be present at REGUA, especially at higher elevations.
One species at REGUA, Chiasmocleis carvalhoi, is categorised as Endangered by the IUCN, two species, Cycloramphus brasiliensis and Aplastodiscus eugenioi, as Near-threatened, and five as Data-deficient.