Anurofauna do município de Pedro II-Piauí, nordeste do Brasil

Abstract

The preparation and creation of lists of species is configured as a primary factor to determine preservation areas and creation of management plans and approach to species conservation. The state of Piauí has extensive ecotonal areas between Cerrado and Caatinga, with high biodiversity, but due to the lack of research in the region, the anurofauna from Piauí remained unknown for many years, leading to a misconception of low biodiversity in the state, but the number of research has increased considerably in the last years, being one of the only states that presents a complete list of anurans for the state. Despite the growing number of studies in the state of Piauí, there are some sub-sampled areas, so the present study aims to carry out a survey of the anurofauna in the municipality of Pedro II, in the northern region of the state of Piauí, making a commented list of species. The collections were carried out between the months of January to May 2019 and January to May 2021, concentrated in the rainy season. The bodies of water were examined slowly examining different microhabitats and reproductive sites (common and permanent) used by the species in different regions of the municipality. A total of 28 species of anurans were recorded, distributed in 15 genera and six families. Most species (59.2%,16 species) have a wide distribution in Brazil, occupying the different biomes, with no endemic species registered. Pedro II has a high richness of anuran amphibians, the composition of anurans being more similar to the data recorded for the municipality of Picos located in the southeastern state of Piauí. We highlight the need for further studies on the natural history, ecology and conservation of amphibians in other regions of the state of Piauí, mainly in transfer areas.