Table 1.

Average pair-wise AI and relatedness values (r) calculated using both Queller & Goodnight (1989) and Kalinowski et al. (2006) maximum-likelihood approach for pairs of breeding females within the three hierarchical social tiers are presented along with tier-specific correlation coefficients. Pairs are only represented in one-tier or categorized as non-affiliated if not assigned to any of the three social units.

social group	N	average AI (s.d.)	method	average r	s.e.	correlation r to AI	p-value
second tier	87	0.839 (0.099)	Q&G	0.234	0.023	<0.001	0.941
			ML	0.261	0.023	0.005	0.502
third tier	155	0.428 (0.140)	Q&G	0.067	0.012	0.078	<0.001
			ML	0.084	0.008	0.099	<0.001
fourth tier	608	0.062 (0.065)	Q&G	0.003	0.005	0.008	0.024
			ML	0.041	0.003	0.031	0.001
non-affiliated	4200	0.025 (0.024)	Q&G	−0.003	0.002	<0.001	0.480
			ML	0.037	0.001	<0.001	0.607