<p>The bivariate relationship between seed size and trunk sprouting number among climax species (CS) and long-lived pioneers (LP) in natural habitats in a subtropical broad-leaved forest in southwestern China. The two lines in the graph denote the fitted lines to the two functional groups (slope = common slope shared by the two functional groups) using the standardised major axis (SMA); broken line, CS species group; solid line, LP group.</p