According to PGLS, SVL and LAD are strongly related with variables of
PC2 (dominated by precipitation) + PC3 (Mean diurnal range and
Precipitation seasonality) + PC4 and PC5 (Min temperature of coldest
month). Specifically, our results indicated that the evolution of the
climate niche is associated with higher precipitation levels and Min
temperature of coldest month, both of which conditions are principally
presented in the distribution in E. A and E. B clades, which suggested
SVL and LAD may be controlled by Mean diurnal range, precipitation and
extreme temperature. In the same vein, HW and SL are controlled by
PC1+PC3+PC4+PC5 (P < 0.05), which means temperature
contributes most in these traits. PC1+PC2+PC3+PC5 best fitted in ED (P
< 0.05) and TW controlled by PC1+PC2+PC3+PC4 (P <
0.05). Interestingly, UEW significant to PC1 (P < 0.05) but
selected model by AICc is PC1+PC2+PC3+PC4 (P > 0.05). For
other best fitted models, please see Table 6.