Figure 1.

The time (in number of generations) t₁ to reach genetic diversity equilibrium and the length of the transient dynamics period t₂ as a function of the migration rate m. The solid line corresponds to n = 2 populations, the dashed line to n = 10, and the dotted line to n = 100. t₁ is always at least one order of magnitude higher than t₂. This separation of the two periods becomes even greater when $m>1/4N={10}^{-4}$. Parameter values are N = 2500, μ = 10⁻⁵, α = 5%.