Table 1.
Bioclimatic variables. Abbreviation and units of the environmental variables (Degrees Celcius (°C), millimeters (mm) and coefficient of variation (CV)).
| Code | Environmental variables | Unit |
|---|---|---|
| Bio1 | Annual mean temperature | °C |
| Bio2 | Mean diurnal range (mean of monthly max. and min. temp.) | °C |
| Bio3 | Isothermality ((Bio2/Bio7) × 100) | % |
| Bio4 | Temperature seasonality (standard deviation × 100) | CV |
| Bio5 | Maximum temperature of warmest month | °C |
| Bio6 | Minimum temperature of coldest month | °C |
| Bio7 | Temperature annual range (Bio5–Bio6) | °C |
| Bio8 | Mean temperature of wettest quarter | °C |
| Bio9 | Mean temperature of driest quarter | °C |
| Bio10 | Mean temperature of warmest quarter | °C |
| Bio11 | Mean temperature of coldest quarter | °C |
| Bio12 | Annual precipitation | mm |
| Bio13 | Precipitation of wettest period | mm |
| Bio14 | Precipitation of driest period | mm |
| Bio15 | Precipitation seasonality (CV) | CV |
| Bio16 | Precipitation of wettest quarter | mm |
| Bio17 | Precipitation of driest quarter | mm |
| Bio18 | Precipitation of warmest quarter | mm |
| Bio19 | Precipitation of coldest quarter | mm |