TABLE 3.
Model comparison using the Akaike Information Criterion (AIC)
| lnL | d.f. | AIC | wAIC | |
|---|---|---|---|---|
| Analysis: all | ||||
| Ideal | −115.5210 | 0 | 231.042 | 0.191 |
| Skew | −114.6370 | 1 | 231.274 | 0.170 |
| Migration/mtDNA selection | −115.0040 | 1 | 232.008 | 0.118 |
| yDNA selection | −113.6800 | 1 | 229.360 | 0.422 |
| xDNA selection | −115.3990 | 1 | 232.798 | 0.079 |
| Analysis: no extremes | ||||
| Ideal | −89.7016 | 0 | 179.403 | 0.177 |
| Skew | −88.7143 | 1 | 179.429 | 0.175 |
| Migration/mtDNA selection | −89.5035 | 1 | 181.007 | 0.079 |
| yDNA selection | −87.6583 | 1 | 177.317 | 0.503 |
| xDNA selection | −89.7016 | 1 | 181.403 | 0.065 |
Comparisons were performed using all of the data with nonzero divergence (analysis: all) and after excluding five loci with extreme χ2 deviances (analysis: no extremes). The models considered include the ideal expectation with an equal proportion of males and females (ideal), a model with a skewed sex ratio (skew), and a model with a sex-biased migration (migration) or balancing selection on mtDNA (mtDNA selection), selection on yDNA (yDNA selection), or selection on xDNA (xDNA selection). The natural logarithm (lnL), degrees of freedom (d.f.), AIC, and weighted AIC (wAIC), which reflects the relative support for each model, are listed.