Fig. 2
From: Evaluating taxonomic homogenization of freshwater fish assemblages in Chile
Scatterplot of historical (CShis: x-axis) versus current similarity composition (CScur: y-axis) of Chile’s freshwater fishes between 201 watersheds examined in this study. The diagonal line represents no temporal change in compositional similarity (ΔCS = 0). Empty circles above the diagonal line are positive values (ΔCS > 0) suggesting taxonomic homogenization, whereas filled circles below the diagonal line are negative (ΔCS < 0) values suggesting taxonomic differentiation