Table 3 Percentage contribution and permutation importance of the environmental variables included in the MaxEnt simulations for species richness of main trees

From: Patterns of tree species richness in Southwest China

Symbol Environmental variables Percent contribution Permutation importance (%)
BIO12 Annual precipitation 27.36 14.46
BIO6 Minimum temperature of coldest month 20.36 34.31
BIO4 Temperature seasonality (standard deviation × 100) 19.07 23.19
ELEV Elevation 10.52 11.81
SLO Slope 4.73 3.35
BIO3 Isothermality (BIO2/BIO7) (100) 4.62 3.67
ST Soil types 3.95 0.71
LF Landform 2.97 2.61
BIO15 Precipitation seasonality (coefficient of variation) 2.73 2.57
LUCC Land-use and land-cover change 2.11 2.15
ASP Aspect 1.58 1.17