Inventário da anurofauna em um fragmento florestal em processo de regeneração

Abstract

Abstract: The increasing population decline of anurans due to environmental changes is worrying, since they can be excellent bioindicators of environmental quality and responsible for the natural control of insects considered pests in agriculture. Before it is possible to draw up conservation strategies, it is necessary to know which species inhabit that location and whether they are receiving support from the environment for survival and reproduction. In this sense, the focus of the investigation was to determine the composition of anuran fauna in a forest fragment in the process of regeneration within the campus of the Federal University of Fronteira Sul, in Laranjeiras do Sul, PR. Samplings were carried out in six expeditions from November 2022 to March 2023, at the beginning of twilight. In the fragment, paths were determined from a fixed point, using vocalization as direction, with a sampling effort of 2 hours to carry out the capture by active search, sound and photographic records. During the study period, 9 frog species were recorded, distributed in 7 genera and 4 families: Hylidae (55.5%), which had the highest species richness, Leptodactylidae (22.2%), Leiuperidae (11.1%) and Odontophrynidae (11.1%). Of the 45 individuals registered, 15 are of the species Dendropsophus minutus, which presented the highest abundance, 14 are of the species Aplastodiscus perviridis, 5 Boana faber, 3 Leptodactylus mystacinus, 3 Scinax fuscovarius, 2 Physalaemus gracilis, 1 Proceratophrys avelinoi, 1 Dendropsophus branneri and 1 Leptodactylus mystaceus. This survey generated a sample of pioneering data on the anuran species present in the studied forest fragment, as until now there were no records of anuran fauna in the municipality of Laranjeiras do Sul. The result of this work can guide future research and contribute to the creation of local biodiversity conservation strategies.