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. 2018 May 16;13(5):e0193295. doi: 10.1371/journal.pone.0193295

Table 2. Results of the multiple regression models by bioclimatic region: Standardized coefficients and standard errors (in brackets), adjusted R2, sample size (N), F value and degrees of freedom (dfs), residual standard error (RSE) and p-values.

Predictors Asian Eastern Southern Western
(Intercept) 1.21 7.19 -0.87 2.13
Annual Mean Temperature (BIO1) 0.04 0.08
Mean Diurnal Range (BIO2) 1.45 -1.11
Min Temperature of Coldest Month (BIO6) 0.03
Temperature Annual Range (BIO7) -3.60
Mean Temperature of Wettest Quarter (BIO8) 0.02 -0.01
Precipitation of Wettest Month (BIO13) -0.92
Precipitation Seasonality (BIO15) -0.61
Precipitation of Coldest Quarter (BIO19) -0.05 -0.07
Continuous herbaceous cover -0.04
Continuous tree cover 0.25 0.28 0.80
R2 adjusted 0.51 0.53 0.50 0.49
N 26 176 94 171
F 9.67 50.2 31.5 28.5
dfs (3)(22) (4)(171) (3)(90) (6)(164)
RSE 0.07 0.17 0.23 0.22
p <0.05 <0.05 <0.05 <0.05