Table 2.

General Linear Model results for social and ecological factors. Both parametric significance and information criteria values are presented. (F=tests to illustrate relative contribution of each parameter to the model. p(χ₀²) represents the probability of the likelihood of the model with an optimized λ being same as the non-phylogenetic model and p(χ₁²) represents the probability of the likelihood of the model with an optimized λ being same as a model assuming Brownian motion.)

model	parameters	F	d.f.	p	λ	$p({\chi }_0^2)$	$p({\chi }_1^2)$	AIC	ΔAIC	weight
1	social system	3.63	3,72	0.02	0.75	<0.001	<0.001	−119.00	0	0.352
habitat	2.60	2,72	0.08
2	social system	2.82	3,68	0.05	0.83	0.002	0.003	−118.24	0.76	0.241
habitat	2.24	2,68	0.11
diet	1.49	4,68	0.21
3	social System	3.82	3,74	0.01	0.75	<0.001	<0.001	−117.13	1.87	0.138
4	social system	3.78	3,70	0.01	0.86	0.001	0.003	−116.66	2.34	0.109
diet	1.71	4,70	0.16
5	sociality	3.86	1,74	0.05	0.70	<0.001	<0.001	−114.63	4.37	0.040
habitat	4.18	2,74	0.02
6	log group	2.32	1,74	0.13	0.82	<0.001	<0.001	−114.36	4.64	0.035
habitat	4.47	2,74	0.01
7	habitat	3.43	2,75	0.04	0.84	<0.001	<0.001	−113.85	5.15	0.027
8	log group	1.32	1,70	0.25	0.86	<0.001	<0.001	−113.59	5.41	0.024
diet	1.56	4,70	0.19
habitat	4.21	2,70	0.02
9	sociality	1.77	1,70	0.19	0.78	<0.001	<0.001	−113.48	5.52	0.022
habitat	4.10	2,70	0.02
diet	1.50	4,70	0.21
10	diet	1.59	4,73	0.19	0.82	<0.001	<0.001	−109.94	9.06	0.004
11	social	0.78	1,76	0.38	0.69	<0.001	<0.001	−109.87	9.13	0.004
12	log group	0.06	1,76	0.80	0.76	<0.001	<0.001	−109.39	9.61	0.003
13	log group	0.01	1,72	0.92	0.82	<0.001	<0.001	−107.95	11.05	0.001
diet	1.54	4,72	0.20