Figure 7.

The variance of the fraction of admixture over time for constant, nonzero contributions from the source populations, but multiple different ratios of female to male contributions. When the sex-specific parameters satisfy the equation $s_1^{\text{f}}{s}_2^{\text{m}}=s_1^{\text{m}}{s}_2^{\text{f}}$, different demographic scenarios have the same limiting variance of the admixture fraction. In all cases, ${\text{lim}}_{g\to \mathrm{\infty }}\mathbb{V}\left[H_{1,g,\delta }\right]=\frac{4}{75}$. The variance is calculated using Equation 33. For all scenarios, $s_{1,0}^{\text{f}}=s_{1,0}^{\text{m}}=0.95$.