Distribuição espacial da anurofauna do Campus Erechim da Universidade Federal da Fronteira Sul

Abstract

The northern region of Rio Grande do Sul was historically marked by intense deforestation and consequent environmental fragmentation. For anuran amphibians, the fragmentation and destruction of habitats are some of the main causes behind their population decline, since the majority of them are very sensitive to these changes in the landscape. This study provides a list of anuran species recorded during a three-month sampling, from January 2024 to March of the same year, on the Campus of the Federal University of Fronteira Sul, which is located in the municipality of Erechim, North of the State of Rio Grande do Sul. The study site was divided into 3 areas, in which sample transects were made using the Visual Encounter Surveys and the Audio Strip Transects. 12 species were recorded, which fall into five families: Hylidae ( Aplastodiscus perviridis , Boana faber , Boana leptolineata , Dendropsophus minutus e Scinax fuscovarius ), Leptodactylidae ( Leptodactylus luctator , Leptodactylus mystacinus , Physalaemus cuvieri e Physalaemus gracilis ), Centrolenidae ( Vitreorana uranoscopa ), Bufonidae ( Rhinella icterica ), in addition to an invasive exotic species ( Aquarana catesbeiana ), belonging to the Ranidae family. . The distribution and concentration of species in the areas varied in relation to vegetation type and the use of substrate. One of the areas showed fewer species than the other two, possibly because it is a forest and lotic habitat, housing fewer species that, however, are more demanding in their use of the environment. Species with the potential to occupy anthropized areas or with some degree of degradation are more associated with marsh habitats.