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Table 2 Average (∆CSav) and net changes in fish compositional similarity (∆CS %), maximum taxonomic homogenization or differentiation (Max TH/TD), and percentage of watersheds with no variation in compositional similarity (∆CS = 0) between watersheds within biotic units (U1-U6). Significant probabilities (p < 0.05) supporting evidence for ∆CS (ANOSIM) and TH versus TD are in italics

From: Evaluating taxonomic homogenization of freshwater fish assemblages in Chile

Biotic unit ∆CSav ∆CS (%) Max TH/Max TD ∆CS = 0 (%) ANOSIM Pearson χ 2
   TH TD    R p-value p-value
U1 −13 32.1 66.0 14.3/−23.3 2 0.245 <0.001 TD: 0.010
U2 −18 26.3 71.4 12.4/−25.0 2 0.343 <0.001 TD: 0.030
U3 −6 22.4 73.9 23.0/−31.5 4 0.527 <0.001 TD: 0.090
U4 −7 16.1 83.0 14.0/−31.7 1 0.176 0.176 TD: 0.001
U5 −1.5 40.4 57.0 37.3/−40.7 3 0.380 <0.001 TD: 0.150
U6 −0.6 42.9 49.9 27.3/−39.5 7 0.228 0.001 TD: 0.080
  1. U1 Titicaca, U2 Atacama, U3 Central, U4 South-Central, U5 South, U6 Patagonia