Table 6.

Species differences in the long bone robusticity indices

Test*	Statistic	P-value	Adj. P-value	Prediction
Humeral robusticity index
Overall	χ2[2] = 41.3	< 0.001	–
O – S	U[34,19] = 523	< 0.001	< 0.001	O > S > L
O – L	U[34,14] = 476	< 0.001	< 0.001
S – L	U[19,14] = 265	< 0.001	< 0.001
Radial robusticity index
Overall	χ2[2] = 24.1	< 0.001	–
O – S	U[34,18] = 518	< 0.001	< 0.001	O > S > L
O – L	U[34,14] = 408	< 0.001	< 0.001
S – L	U[18,14] = 139	0.317	0.317
Femoral robusticity index
Overall	χ2[2] = 18.1	< 0.001	–
O – S	U[34,19] = 461	0.005	0.005	O > S > L
O – L	U[34,14] = 402	< 0.001	< 0.001
S – L	U[19,14] = 204	0.005	0.005
Tibial robusticity index**
Overall	χ2[2] = 0.9	0.637	–
O – S	–	–	–	O > S > L
O – L	–	–	–
S – L	–	–	–

^*Post-hoc tests are one-tailed Mann–Whitney U-tests of the null hypothesis that the more cursorial taxon displays greater robusticity. Table formatting and abbreviations follow Table 4.

^**Because the overall Krukal–Wallis test comparing tibial robusticity index among species was not significant, post hoc comparisons were not carried out.