Table 2.

Individual measures of phylogenetic signal (λ) for the physiological traits in this study. Phylogenetic signal was significantly non-zero for all but one trait.

Variable	λ	2 LR	P	N
Female hematocrit	0.722	30.680	<0.001	45
Male hematocrit	0.250	2.579	0.108	45
Hematocrit dimorphism	0.626	15.752	<0.001	45
Female RBC count	0.962	45.533	<0.001	45
Male RBC count	0.900	31.446	<0.001	45
RBC count dimorphism	0.544	5.706	0.017	45

Note: P-values indicate significance levels when testing whether λ=0 in a likelihood ratio test with one degree of freedom.