Are tree plantations promoting homogenization of mammal assemblages between regions with contrasting environments?

Aim
The expansion of agriculture is promoting the loss of natural environments and their biotic homogenization. We aimed at understanding whether the replacement of forests and grasslands by tree plantations leads to biotic homogenization of mammal assemblages of two contrasting Neotropical ecoregions or if dispersal or environmental limitations keep their original assemblages clearly differentiated.

Location
Argentina, Upper Paraná Atlantic Forest, Southern Cone Mesopotamian Savannas and Iberá marshes

Taxon
Mammals

Methods
We conducted two camera-trap surveys, deploying 184 camera-trap stations in continuous forest, fragmented forest, and pine plantations in the Atlantic Forest, and 234 in grassland, fragmented forest, and pine plantations in the Mesopotamian Savannas. We evaluated the similarity of the assemblages among the environments and regions, generating all possible pairwise comparisons using three similarity indices: Sørensen (species identity), Horn (common speci...