Table 3.

Intra-unit social association preferences predicted by pairwise relatedness. Association was defined as identification in the same cluster, using ‘both identified’ as the association index. Pairwise values for mother-dependent calf pairs were excluded. Mantel tests were performed with 10 000 permutations.

social unit	N	sampling interval	matrix correlation	p-value
A	12	2 h	0.26	0.010
		day	0.45	<0.001
F	9	2 h	0.17	0.006
		day	0.11	0.012
J	5	2 h	−0.05	0.740
		day	0.12	0.529
R	7	2 h	−0.12	0.836
		day	−0.10	0.896
S	3	2 h	0.90	0.505
		day	0.99	0.164
U	4	2 h	−0.75	0.882
		day	−0.63	0.961