Fig.2 Relationships of resource availability PC1 scores with
(a, c) plant abundance in karst
shrubland and woodland, and (b, d) species diversity in karst shrubland
and woodland. (c) and (d) included tree and shrub layers of woodland,
respectively. Statistical significance of the regression models
indicated by * at P < 0.05 and ** at P< 0.01, and gray shading represents 95% credible intervals.