Fig. 4 Results of HMSC models showing effects of environmental filtering based on species presence/absence data. (a) HSMC-based estimates of species responses to the environmental covariates (MAP, MAT, altitude, soil N and P), i.e β parameter. Plant species were listed according to their phylogenetic relationships (a high-resolution tree with detailed genome size (GS, 1C DNA content, pg) was supplied in Supplementary Fig. S1). The figure legend in panel (a) indicates positive (red) and negative (blue) responses to the environmental covariates, based on credible intervals with posterior probability at least 95%. (b) Model-based community weighted means (CWMs) of genome size (log-transformed) and its response to the environmental covariates. The CWM of genome size was calculated based on the prediction from the HMSC model.