Table 3. Variable importance (%) ranking by the nine distribution methods (see the methods section for abbreviations) with respect to the ensemble prediction (EP).
Variables | Model | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
EP | RF | BRT | GAM | CTA | FDA | MARS | MAXENT | GLM | ANN | |
Grasslands | 0.007 | 0.001 | 0.000 | 0.049 | 0.000 | 0.020 | 0.038 | 0.046 | 0.000 | 0.000 |
Poplar plantations | 0.012 | 0.000 | 0.006 | 0.050 | 0.000 | 0.023 | 0.060 | 0.047 | 0.018 | 0.008 |
Human settlements | 0.014 | 0.001 | 0.000 | 0.117 | 0.000 | 0.000 | 0.000 | 0.078 | 0.029 | 0.000 |
Woodlands | 0.021 | 0.028 | 0.004 | 0.016 | 0.000 | 0.535 | 0.940 | 0.449 | 0.044 | 0.025 |
Cultivated fields | 0.022 | 0.139 | 0.003 | 0.025 | 0.000 | 0.000 | 0.295 | 0.298 | 0.005 | 0.063 |
Distance to human settlements | 0.030 | 0.052 | 0.028 | 0.127 | 0.000 | 0.050 | 0.062 | 0.105 | 0.047 | 0.365 |
Human population density | 0.085 | 0.098 | 0.167 | 0.099 | 0.100 | 0.000 | 0.093 | 0.171 | 0.104 | 0.162 |
Distance to roads | 0.107 | 0.096 | 0.060 | 0.178 | 0.135 | 0.020 | 0.032 | 0.141 | 0.032 | 0.232 |
Habitat Shannon Diversity Index | 0.112 | 0.073 | 0.069 | 0.167 | 0.179 | 0.000 | 0.000 | 0.123 | 0.257 | 0.282 |
Distance to woods | 0.378 | 0.214 | 0.440 | 0.409 | 0.600 | 0.000 | 0.000 | 0.267 | 0.073 | 0.223 |
Distance to watercourses | 0.381 | 0.446 | 0.384 | 0.291 | 0.590 | 0.378 | 0.552 | 0.517 | 0.194 | 0.178 |