Table 1.

Range of population sizes and basic statistics of the parameter values of m for random (value of m has no affect) and m-trait mating (i.e. assortative mating when m < 0.5, dissasortative mating when m > 0.5) simulations at the end of the 250 and 500 generation epochs

N (runs)	Agent ranges across runs	Mean ± stdev across “within run means”	Mean ± stdev across “within run stdev”
At generation 250a
Random 124	239–361	0.49 ± 0.13b	0.17 ± 0.05
m-Trait 80	256–348	0.21 ± 0.09b	0.11 ± 0.05
At generation 500c
Random 15	265–334	0.53 ± 0.20b	0.10 ± 0.07
m-Trait 15	263–350	0.10 ± 0.09b	0.06 ± 0.04

^aThe difference between distributions of m values for random versus m-trait mating are plotted in Fig. 1

^bSignificance evaluated using a two-tailed non-parameteric Mann-Witney U test. For 250 generations

p < <0.001, for 500 generation p < 0.01

^cAdditional details in Table 2