Resumo

ZABALA-FORERO, Fabio  e  URBINA-CARDONA, Nicolás. Taxonomic and functional diversity responses to landscape transformation: relationship of amphibian assemblages with land use and land cover changes. Rev. Mex. Biodiv. [online]. 2021, vol.92, e923443.  Epub 03-Fev-2022. ISSN 2007-8706.  https://doi.org/10.22201/ib.20078706e.2021.92.3443.

The aim of this work was to evaluate changes in the taxonomic and functional diversity of amphibians in 9 vegetation cover types in a highly fragmented landscape in the Colombian Andes. Eighty-eight individuals of 11 amphibian species were recorded, with the greatest richness occurring in the interior zone of the forest. Based on 6 functional traits, the amphibian assemblage was classified into 4 functional groups. The composition of the amphibian assemblage and the frequency of functional groups varied by the effect of the type of vegetation cover and the climatic season. In the interior zone of the forest, the index of functional richness weighted by total abundance at the community level was higher than in the rest of the vegetation cover, indicating that in this habitat amphibians occupy a wide functional space and better potential to explore resources. Cocoa and sugar cane crops, due to their structural characteristics, allow the dispersion of some amphibian species, while pastures and mixed crops constitute barriers to their mobility. Based on the distribution of species and functional groups, actions for the management of agro-ecosystems are proposed to increase the quality of habitat and the connectivity of populations in the landscape.

Palavras-chave : Anurans; Andean Forest; Crops; Habitat structure; Functional groups; Functional traits; Functional richness; Production systems.

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