Figure 7.

Our CCFs of C_T approximate those of T when the population size is small and selection is weak, or when partition sizes are asymmetric. ${\psi }_{C_T|\mathit{b}}(\tau )$ (solid traces, a,c) and ${\psi }_{C_T|\mathit{a}}(\tau )$ (solid traces, b,d) approximate ψ_T|b(τ) (dashed traces, a,c) and ψ_T|a(τ) (dashed traces, b,d) to within a scaling constant. We obtained ψ_T|b(τ) and ψ_T|a(τ) from 200 000 simulations. In all panels, ${\psi }_{C_T|\mathit{b}}(\tau )$ and ${\psi }_{C_T|\mathit{a}}(\tau )$ are plotted with respect to the bottom x-axis, and ψ_T|b(τ) and ψ_T|a(τ) are plotted with respect to the top x-axis. The real (pink and red) and imaginary (grey and black) parts of the CCFs are plotted separately. Note that, when the partition sizes are highly asymmetric (c,d), both the fixation and extinction CCFs closely match each other to within a scaling constant. When the partition sizes are approximately equal (a,b), the higher-order moments of C_T|b do not approximate those of T|b as accurately. These observations are analogous to those made for the fully connected Moran process [16]. In all plots, r = 1.01, S_a,0 = 1 and S_b,0 = 0.