Riqueza, diversidade e uso de recursos hídricos por anfíbios no Sítio Pedagógico da Jacira, Duque de Caxias, Estado do Rio de Janeiro

Abstract

Although fragmented and anthropized, the Atlantic Forest biome is one of the Brazilian biomes with the greatest wealth of species and endemism, especially when it comes to anurofauna. The state of Rio de Janeiro stands out in this context, with ecological information still limited. The present study on anuran assemblages was carried out in a fragment inserted in the Serra da Estrela State Wildlife Refuge, in the Sítio Pedagógico da Jacira, located on the Cachoeira das Dores road s/nº, municipality Duque de Caxias (22°35'23.4 "S 43°13'36.7"W, SAD 69). To obtain information on the richness and diversity of amphibians, different capture methods were used: pitfall traps, fenced plots and time-limited transects. Data was collected over 24 months, between February 2019 and January 2021, with a sampling effort of 345 man-hours and 1,296 man-hours. 1,146 individuals were recorded, distributed among 13 families and 53 species. The Hylidae family was the richest (n = 28, 52.83%). The species Haddadus binotatus (Spix, 1824) was the most abundant, with 151 individuals recorded. The rarefaction curves for each methodology used indicated stability. The Jackkenife 1 richness index (n = 52.96 ± 0.96) and the Shannon diversity index (H´= 3.44) point to the importance of this location in the conservation of amphibians, which is in a unit full protection conservation.