Fig. 5. Compaction, the proportion of area lost because of reconfiguration, versus structural properties. (A,B) Low velocity (0.5 m s^–1). (C,D) High velocity (3.0 m s^–1). Regression of low velocity compaction to modulus (slope=–0.005, R²=0.39, P=0.05) and high velocity compaction to log structural flexibility were significant (slope=0.029, R²=0.73, P<0.01). Other regressions were not significant (P>0.05). Species labeled as per Fig. 4.