Table 1 Environmental variables.
Index | Abbreviation | Description for variable | Unit |
---|---|---|---|
Terrain variables | Elev | Elevation | m |
Slope | Slope | ° | |
Aspect | Aspect | ° | |
Bioclimatic variables | bio1 | Annual mean temperature | ℃ |
bio2 | Mean diurnal range | ℃ | |
bio3 | Isothermality (bio2/bio7) (*100) | ℃ | |
bio4 | Temperature seasonality (standard deviation *100) | ℃ | |
bio5 | Max temperature of warmest month | ℃ | |
bio6 | Min temperature of coldest month | ℃ | |
bio7 | Temperature annual range (bio5-bio6) | ℃ | |
bio8 | Mean temperature of wettest quarter | ℃ | |
bio9 | Mean temperature of driest quarter | ℃ | |
bio10 | Mean temperature of warmest quarter | ℃ | |
bio11 | Mean temperature of coldest quarter | ℃ | |
bio12 | Annual precipitation | mm | |
bio13 | Precipitation of wettest month | mm | |
bio14 | Precipitation of driest month | mm | |
bio15 | Precipitation seasonality (coefficient of variation) | 1 | |
bio16 | Precipitation of wettest quarter | mm | |
bio17 | Precipitation of driest quarter | mm | |
bio18 | Precipitation of warmest quarter | mm | |
bio19 | Precipitation of coldest quarter | mm |