Fig 3. Joint and independent effects of the drivers (%, Explained variance) on the richness patterns of all conifer species (A), endemic species (B), threatened species (C), and endemic-threatened (D) species evaluated by hierarchical partitioning models. The first axis of PCA within the seven predictor groups was extracted and then applied to the hierarchical partitioning. Env_energ.; Environmental energy, Wat_avail.: Water availability, Clim_seas.: Climatic seasonality, Topo_het.: Topographic heterogeneity, Soil_typ.: Soil texture type, Soil_fert.: Soil fertility and nutrient availability, Hum_inf.: Human influences.