Figure 3.

Variations in within-population allelic covariation (θ_W) and genetic variance (V_W) under different evolutionary scenarios. θ_W and V_W were monitored under three different strengths of assortative mating and two levels of environmental cline. All simulations were conducted under the island migration model with moderate gene flow (Nm = 5.1). The red line indicates strong assortative mating (ρ = 0.8), the blue line moderate assortative mating (ρ = 0.3), and the black line random mating (ρ = 0). Each line represents the mean of 50 independent replicates for each evolutionary scenario.