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Table 1 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 found in different biotic units (i.e., between units). 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

Pairwise comparison ∆CSav ∆CS % Max TH/TD ∆CS = 0 (%) ANOSIM Pearson χ 2
   TH TD    R p value p value
U1-U2 1.8 54.3 45.7 34.0/−31.2 0 0.31 0.001 TH: 0.012
U1-U3 2.1 61.3 38.7 27.0/−19.0 0 0.34 0.013 TH: 0.030
U1-U4 1.4 57.2 42.8 23.0/−26.3 0 0.43 0.001 TH: 0.018
U1-U5 1.9 53.8 46.2 21.7/−34.3 0 0.39 0.034 TH: 0.021
U2-U3 2.4 87.9 12.1 57.0/−18.0 0 0.32 0.001 TH: 0.020
U2-U4 1.7 74.2 25.8 25.0/−21.0 0 0.41 0.001 TH: 0.010
U2-U5 4.3 68.0 31.4 22.0/−26.0 1 0.53 <0.001 TH: 0.010
U3-U4 2.9 63.4 35.1 28.0/−23.8 19 0.40 0.001 TH: 0.026
U3-U5 −2.5 45.0 54.9 3.0/−35.2 1 0.50 <0.001 TD: 0.320
U4-U5 −4.2 22.5 77.5 37.0/−19.9 44 0.45 0.001 TD: 0.001
U5-U6 1.3 53.2 46.8 36.0/−33.3 49 0.35 <0.001 TH: 0.519
  1. U1 Titicaca, U2 Atacama, U3 Central, U4 South-Central, U5 South, U6 Patagonia