Fig. 3: Soil bacterial diversity patterns along the latitudinal gradient.

a α diversity. b β diversity. c γ diversity. The relations between (α, β, and γ) diversity and latitude were evaluated using linear and polynomial regressions and the best polynomial fit was determined on the basis of Akaike information criterion (AIC) and the corrected Akaike information criterion AIC (AICc). The P-values by two-sided F-test are indicated in a–c (n = 60 independent samples). The source data are provided as a Source data file.