Table 1.
Contribution of the bioclimatic variables to the principal components in each PCA
| Variable | Description | PC1 | PC2 |
|---|---|---|---|
| BIO1 | Annual mean temperature | 0.09673175 | *0.74385816 |
| BIO4 | Temperature seasonality (standard deviation *100) | 0.39218394 | 0.1903556 |
| BIO12 | Annual precipitation | *0.85930067 | 0.10212419 |
| BIO16 | Precipitation of wettest quarter | 0.62597144 | 0.18896995 |
| BIO17 | Precipitation of driest quarter | 0.6629586 | 0.00046749 |
| BIO18 | Precipitation of warmest quarter | 0.69354295 | 0.03726699 |
| BIO19 | Precipitation of coldest quarter | 0.30340937 | 0.36548879 |
| Soil | - | 0.05674086 | 0.01596698 |
| Land use | - | 0.14928295 | 0.01743091 |
| Elevation | - | 0.10542472 | 0.67938135 |
*Highest contribution values to correlation circle (Fig. 2, panel c)