Table 2.

Results of assortativity analyses on weighted social networks within Marley using the nearest-neighbour (NN) method

Network type	Male					Female
	No. of links	Assortment		Effect size	P	No. of links	Assortment		Effect size	P
		Observed	Permuted				Observed	Permuted
3-NN	60.5	0.140	−0.034	0.174	0.020	93.2	0.004	−0.024	0.028	0.606
5-NN	102.7	0.092	−0.027	0.120	0.030	153.2	0.041	−0.024	0.065	0.130
7-NN	141.8	0.108	−0.027	0.135	0.004	212.0	0.046	−0.024	0.070	0.066

The observed and null assortment scores (averaged across all 6 years) are based on weighted networks, with values in bold indicating significance at α = 0.05. The permuted assortment represents the mean of 1000 randomizations according to the null model. Average distances between nearest neighbours are shown in Table A4 in Appendix 2.