Table 2.
Posterior modes and 95% credible intervals (CI) for each variance component for endocranial volume (millilitres) from the animal model analyses. (Va, additive genetic variance; Vb, birth year effect variance; Vm, maternal variance; Vr, residual variance. Variance components are followed by their 95% CI.)
| source | variance components (95% CI) | per cent of total (95% CI) |
|---|---|---|
| model 1: all-ages | ||
| Va | 364.50 (254.68–445.40) | 63 (50–76) |
| Vb | 21.51 (0.0008–39.43) | 3 (0.0001–7) |
| Vm | 0.02 (0.0005–10.11) | 0.003 (0.00008–2) |
| Vr | 164.03 (114.26–231.73) | 29 (19–44) |
| model 2: adult-only | ||
| Va | 443.36 (337.19–598.20) | 79 (61–90) |
| Vm | 0.14 (0.0003–59.27) | 0.02 (0.00005–10) |
| Vr | 116.79 (51.38–218.99) | 21 (7–37) |