Fig 9. Evolved values of parameters under random mating.

Parameter phenotype values for each of the 140 agents in the final generation (T = 250) of the first two of 50 simulations are plotted as a function of their fitnesses (ranging from 0 to 12). The evolved neighbor-discount parameter α (green triangles), competition-tradeoff parameter δ (red squares), and movement-threshold parameter ρ (blue diamonds), across the 140 agents differ in the two runs and show different degrees of dispersion, but reflect both heterogeneous and homogeneous phenotypes: viz. in Run 1 we see six α phenotypes that arise from the emergence of three alleles, as discussed in Table 5.