Fig. 4. Factors determining the global distribution of potential phytopathogenic fungi.

a Random forest model performances for ppSH richness. b Contribution of climatic, spatial and vegetation variables to the explained variation by the complete random forest model for ppSH richness. Each tree was fitted based on a random sample of two-third of the observations (“in-bag”), and each tree split was based on a different random subset of one-third of the predictors, while the results were cross-validated against the remaining observations (“out-of-bag”), which is in line with standard protocols. The model performance was assessed based on model R² with 999 permutations. Vegetation reflects gross primary production and plant diversity. Source data are provided as a Source Data file.