Caracterização da fauna de anfíbios e répteis da região da Serra do Navio, Amapá

Abstract

The Serra do Navio region, despite being considered one of the most interesting in terms of species diversity in the Eastern Amazon, still has its herpetological fauna poorly studied. The present study started from amphibian and reptile specimens collected in the Amapari River region, Serra do Navio, Amapá, between May and November 2000. The objective of the work was to catalog and obtain morphological and morphometric data of the species of the region, as well as to gather information on their habitats and geographic distribution. A total of 400 amphibian, 228 lizard, and 43 snake specimens were re-identified, registered, and incorporated into the MPEG Herpetological Collection. To measure the amphibians and snakes we used digital pachymeters and tape measures, respectively. For sexing, secondary sexual characteristics (amphibians) and genitalia (snakes) were observed. Features of taxonomic importance, mainly coloration patterns in amphibians and scale counts in snakes, were also recorded. Among the amphibians, the most diverse families were Hylidae and Leptodactylidae, with 19 and 18 species respectively, followed by Bufonidae and Dendrobatidae, both with 5 species. Regarding the abundance of specimens, the Bufonidae family had the highest number (118), followed by E Leptodactylidae (88). Among the reptiles, 32 species of C lizards, two amphisbaenians, and 27 snakes have been recorded so far. Many specimens still have uncertain identification, and should be examined in more detail as the study continues.