Table 2-2.

Significant results of PGLS multivariate regression for TRC gene numbers vs. ecological factors.

Response variable	N	Predictor variable	Slope	p	R2	λa
TRC	37	Habitat	1.342	0.007**	0.281	0.955
		Sociality	3.827	0.012*
TRGC	37	Habitat	1.267	< 0.001***	0.457	1
		Sociality	2.475	0.004**

^aPagel's λ for phylogenetic signal (50).

^*p < 0.05;

^**p < 0.01;

^***p < 0.001.