Fig. 7
Relationships between environmental factors and bacteria and eukaryotic β-diversity. a Bivariate associations between β-diversity and environmental factors (geographic, climatic, and soil pH distances). Lines represent the trends of the bivariate associations. Spearman correlation coefficients (rho) and the lower and upper 95% confidence intervals of simple Mantel tests are shown. b Partial Mantel tests for the bivariate associations between environmental factors and β-diversity. Symbol | represents partial Mantel tests. Variables in the left of | represent the independent variables, and in the right of | represent the controlling independent variables. Points represent the Spearman correlation coefficients (rho) and error bars 95% confidence intervals. Geo—geographic distance; Clim—climatic distance; pH—soil pH distance. Geographic distance has a unit of km, and the other distance metrics are unitless