Table 2.
Correlations between climatic variables and three principle components extracted from these variables (varimax rotation)
| Climate variable | PC1, CONTIN | PC2, SUMMWARM | PC3, PRECIP |
|---|---|---|---|
| Temperature seasonality (SD) | 0·97 | 0·04 | −0·21 |
| Min. temperature of coldest month | −0·96 | 0·24 | 0·08 |
| Temperature annual range | 0·92 | 0·35 | −0·14 |
| Precipitation seasonality (CV) | 0·91 | 0·07 | −0·35 |
| Mean annual temperature | −0·72 | 0·68 | 0·09 |
| Max. temperature of warmest month | −0·11 | 0·98 | −0·10 |
| Mean diurnal temperature range | 0·28 | 0·92 | 0·07 |
| Precipitation of wettest month | 0·02 | −0·03 | 0·99 |
| Annual precipitation | −0·56 | 0·01 | 0·82 |
| Precipitation of driest month | −0·65 | 0·03 | 0·75 |
The three principle components accounted for 97·6 % of the variation.
The strongest correlations (|r| > 0·7) are in bold.