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Table 5 Stenobiomic number species (BSI = 1) in South American macromammals and micromammals

From: Influence of continental history on the ecological specialization and macroevolutionary processes in the mammalian assemblage of South America: Differences between small and large mammals

  Macromammals
Biome South America Monte Carlo analysis
  sp. sp. (BSI = 1) % Mean % Std.dev. Range p
I 123 50 40.65 12.05 2.58 4.88–20.33 < 0.001
II 96 12 12.50 7.71 2.48 1.04–14.58 0.028
II/III 60 2 3.33 5.37 2.73 0.00–16.67 0.358
III 15 2 13.33 3.69 4.96 0.00–26.67 0.019
IV 12 0 0.00 3.92 5.29 0.00–33.33 0.602
V 52 1 1.92 4.88 2.84 0.00–15.38 0.260
VI 18 1 5.56 4.02 4.56 0.00–22.22 0.836
VII 22 1 4.55 3.85 4.16 0.00–22.73 0.795
VIII 15 0 0.00 3.86 4.77 0.00–26.67 0.541
  Micromammals
Biome South America Monte Carlo analysis
  sp. sp. (BSI = 1) % Mean % Std.dev. Range p
I 386 98 25.39 13.99 1.57 8.88–19.84 < 0.001
II 409 92 22.49 15.22 1.50 10.51–19.80 < 0.001
II/III 222 16 7.21 9.37 1.82 4.50–15.32 0.150
III 49 14 28.57 7.01 3.71 0.00–20.41 < 0.001
IV 27 3 11.11 6.62 4.67 0.00–25.93 0.096
V 175 23 13.14 8.43 2.02 3.43–16.00 0.006
VI 47 6 12.77 6.81 3.65 0.00–21.28 0.038
VII 89 21 23.60 7.32 2.84 1.12–21.35 < 0.001
VIII 90 24 26.67 7.38 2.68 0.00–16.67 < 0.001
  1. sp., number of species; % proportion of species with BSI = 1 in relation to total number of species; p, probability in each biome of the proportion of species with BSI = 1 being greater than or equal to (plain) or lower than or equal to (italics) the observed proportion in the South American mammal fauna.