Preliminary assessment of amphibians and reptiles from floresta nacional do trairão, with a new snake record for the Pará state, Brazilian Amazon

Abstract

We present a list of amphibians and reptiles from Floresta Nacional do Trairão, located in the southwestern part of the state of Pará. This study is part of the results obtained during the preparation of the management plan of FLONA do Trairão, required by the Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio), conducted during the rainy season, 05-24 September 2009. We use four different methods: time-constrained visual searching (TCVS), pitfall traps with drift fence (PT), occasional collecting (OC), and collections made by others (CMO). The study area covers 257,482 hectares and approximately 70% of it is covered by dense ombrophilous forest and 30% of open ombrophilous forest. We registered 94 species of amphibians and reptiles: Anura (35), Chelonia (4), Crocodylia (1) and Squamata (54: 23 lizards and 31 snakes). The snake Drymobius rhombifer was registered for the first time in the state of Pará. Although none of the recorded species is cited in the lists of endangered species in Brazil, FLONA do Trairão should be considered important for maintaining populations of central Amazonian herpetofauna. © 2011 Deutsche Gesellschaft für Herpetologie und Terrarienkunde e.V. (DGHT).