(a) | Sets | WorldClim variables |
 | 1 | Bio3, Bio8, Bio15, Bio18 |
 | 2 | Bio1, Bio2, Bio8, Bio17 |
 | 3 | Bio2, Bio5, Bio18, Bio19 |
 | 4 | Bio5, Bio6, Bio13, Bio15 |
 | 5 | Bio2, Bio8, Bio11, Bio14 |
(b) | Variable name | Variable definition |
 | Bio1 | Annual mean temperature |
 | Bio2 | Mean diurnal temperature range |
 | Bio3 | Isothermality |
 | Bio5 | Maximum temperature of the warmest month |
 | Bio6 | Minimum temperature of the coldest month |
 | Bio8 | Mean temperature of the wettest quarter |
 | Bio11 | Mean temperature of the coldest quarter |
 | Bio13 | Precipitation of the wettest month |
 | Bio14 | Precipitation of the driest month |
 | Bio15 | Precipitation seasonality |
 | Bio17 | Precipitation of the driest quarter |
 | Bio18 | Precipitation of the warmest quarter |
 | Bio19 | Precipitation of the coldest quarter |