Figure 12.

Contour plots of the limit of the variance of the fraction of admixture over time as a function of $s_1^{\text{f}}$ on the x-axis and $s_2^{\text{f}}$ on the y-axis for specified values of $s_1^{\text{m}}$ by column and $s_2^{\text{m}}$ by row. The domains of $s_1^{\text{f}}$ and $s_2^{\text{f}}$ are bounded below by 0 and above by the line $s_1^{\text{f}}+s_2^{\text{f}}=1.$