Effects of agricultural systems on the anuran diversity in the Colombian Amazon

Abstract

We provide information on the diversity of anurans from agroforestry systems in the Colombian Amazon. This area is inserted at the tropical rainforest ecosystem and consists mainly of secondary forest remnants surrounded by crops, grasslands, and agroforestry systems. From February to May 2015, we sampled anurans mainly with visual and auditory surveys. We recorded a total of 1096 individuals of 20 species of anurans from six families at the study area. The relictual forest was the richest environment, followed by Achapo and Cacao agroforestry systems. The Achapo system showed great similarity in species composition with relictual forest, however, the latter presented the highest number of exclusive species, whereas the first presented only two and Cacao system didn't have any exclusive species. Our results show that the richness can vary between the different types of agroforestry systems and highlight their importance as management tool for anurans conservation in the Colombian Amazon.

Los cambios en la cobertura del suelo afectan la diversidad de anfibios y reptiles en un paisaje rural de la región Caribe colombiana

“…Although some human activities can decrease the resilience of animal populations and increase the risk of extinction, especially among specialist organisms, other species may benefit from man-made structures (e.g., artificial ponds), which provide potential breeding sites and refuges for amphibians and reptiles (Valdez et al, 2021;Díaz-Ricaurte et al, 2022). Additionally, fragments of secondary vegetation have been documented as important shelters for the diversity of amphibians and reptiles in human-modified landscapes (Thompson & Donnelly, 2018).…”

Environmental filtering and deforestation shape frog assemblages in Amazonia: An empirical approach assessing species abundances and functional traits

“…Amazonian frog assemblages vary along environmental gradients in both relatively pristine (Menin et al, 2007(Menin et al, , 2011Rojas-Ahumada et al, 2012) and human-modified landscapes (Díaz-Ricaurte et al, 2020;Tsuji-Nishikido & Menin, 2011). Assemblages can change spatially in response to changes in competition along environmental gradients, or to multiple evolutionary and ecological processes that have shaped species distributions at different spatial scales (Dias-Terceiro et al, 2015;Menin et al, 2008;Ramalho et al, 2018).…”