Figure 2.

Correlation Tests between Leg Length, Speed, and Habitat Preference

The ratio of leg length by body length is used to take into account the differences in size across species.

(A and C) There is no significant correlation between foreleg length and speed (rho raw: 0.21, adjusted p: 4.9e−1, n.s.; rho PIC: 0.41, adjusted p: 1.8e−1, n.s.) (A) and between hindleg length and speed (rho raw: 0.48, adjusted p: 9.7e−2; rho PIC: 0.46, adjusted p: 1.5e−1, n.s.) (C) using respectively both Spearman correlation test on raw data and with phylogenetic correction.

(B) There is a significant positive correlation between midleg length and speed (rho raw: 0.79, adjusted p: 1.6e−3; rho PIC: 0.82, adjusted p: 5.3e−4) using respectively both Spearman correlation test on raw data and with phylogenetic correlation.

See also Figures S1, S2, and S4 and Tables S1 and S2.