Table 2. Fit of alternative models of trait evolution, based on the method of Pagel (1999).

	Pheidole				Formicidae
	MAJORS		MINORS
	PC1	PC2	PC1	PC2	PC1	PC2
lik λ	−64.53	32.14	−50.72	9.28	−203.247	−48.273
$\hat{\lambda }$	0.99	0.79	0.98	0.78	1.05	1.03
lik λ = 0	−96.009	17.176	−88.359	−4.220	−203.247	−67.567
p	2.11E−15	4.49E−08	4.07E−18	2.03E−07	0.0003	5.23E−10
lik BM	−64.564	18.815	−51.138	−10.092	−197.800	−48.825
lik δ	−62.907	24.716	−50.784	−3.686	−197.651	−46.3647
$\hat{\delta }$	0.32	3.54	0.60	5.75	1.276	0.325
p	0.069	6e−04	0.400	3e−04	0.584	0.026