EFFECTIVENESS OF DIFFERENT AMPHIBIAN RECORDING TECHNIQUES IN A TEMPERATE LAKE WETLAND IN EAST-CENTRAL ARGENTINA EFECTIVIDAD DE DIFERENTES TÉCNICAS DE REGISTRO DE ANFIBIOS EN UN HUMEDAL LACUSTRE TEMPLADO DEL CENTRO-ESTE DE ARGENTINA

SANCHEZ, LAURA C.; PRIETO, YANINA A.; MAROLI, MALENA; VIRGOLINI, ANA L. RONCHI

Revista Latinoamericana de Herpetologia

Sociedad Herpetologica Mexicana

Lugar: Coyoacán; Año: 2023 vol. 6 p. 10 - 22

Anuran communities and their associated biotic components, as well as the surrounding physical habitat, vary between regions. The success of research on amphibian biodiversity will then depend on knowing the efficiency of the different sampling techniques that are applied in each particular environment analyzed. In this context, we evaluated the relative registration effectiveness (RRE) of four different techniques in a lacustrine wetland located in the Juan Bautista Alberdi Reserve (JBAR), in east-central Argentina. Research was carried out from December 2021 to March 2022 (summer season), adding an autumn sampling (May/2022). Techniques used were: A) pitfall traps, b) larval sampling, c) acoustic survey transects and d) visual survey transects. In each case, the RRE was calculated by standardizing the records according to the sampling effort measured in minutes. To study the effect of the sampling technique on RRE, a randomized linear model was created using a permutation test, applying 1,000 iterations. A total of 11 species were recorded, with Boana pulchella, Scinax nasicus and Rhinella dorbignyi being the most frequently detected. The sampling technique was found to influence RRE (P = 0.001). The acoustic survey transect was the most successful technique, with an RRE of 24.44%, followed by the search for larvae with a net (3.70%) and the visual survey transect (3.38%). However, these last two allowed us to find species not detected by the first technique. Consequently, a design integrating different techniques is necessary to adequately study the amphibian communities of the JBAR. Improving the effectiveness of sampling allows us to strengthen our understanding of the biodiversity of this taxonomic group, which is so necessary in the context of current global decline.