Table 2. Environmental predictors and their discriminatory power.
| Predictor | Description | ROC score | PI | No |
| AnnTMean | Annual mean temperature (°C) | 0.66 | 7.6 | 26 |
| DiuTRange | Mean diurnal temperature range (°C) | 0.58 | 8.1 | 23 |
| Isotherm | Isothermality (-) | 0.58 | 7.7 | 21 |
| TSeason | Mean temperature seasonality (°C2) | 0.58 | 9.9 | 23 |
| Tmax | Maximum temperature of warmest month (°C) | 0.61 | 3.0 | 18 |
| TWetQuar | Mean temperature of wettest quarter (°C) | 0.66 | 1.8 | 18 |
| TDryQuar | Mean temperature of driest quarter (°C) | 0.55 | 2.6 | 20 |
| AnnPMean | Annual mean precipitation (mm) | 0.65 | 6.1 | 29 |
| PSeason | Mean precipitation seasonality (-) | 0.56 | 3.6 | 19 |
| AltMean | Mean altitude (m) | 0.66 | 17.8 | 27 |
| CumLenkm | Maximum cumulative length of the upstream flow network (km) | 0.65 | 3.9 | 24 |
| Strahler | Maximum Strahler order | 0.64 | 12.9 | 36 |
| RtypMost | Dominant river type | 0.61 | 11.3 | 32 |
| Lusemax | Dominant land use type | 0.55 | 1.7 | 26 |
| Popmean | Mean population density (Inhabitants/km2) | 0.57 | 2.0 | 24 |
“ROC score” is the mean ROC score based on the univariate analysis; “PI” is the mean permutation importance of each individual predictor for GLM, GAM, RF and ME based multivariate SDMs; “No” is the number of species for which the respective predictor variable was identified as statistically significant (the total number of considered species is 38).