Table 4.
Migration rates estimated using BayesAss for only the 266 Gyps coprotheres collected at the six breeding colonies.
| Source | Collywobbles | Msikaba | Umzimkulu | Skeerpoort | Kransberg | ||
|---|---|---|---|---|---|---|---|
| Potberg | |||||||
| Recipient | Potberg | 0.68 (0.67, 0.69) | 0.23 (0.19, 0.27) | 0.02 (0.00, 0.04) | 0.03 (0.00, 0.06) | 0.02 (0.00, 0.03) | 0.02 (0.00, 0.04) |
| Collywobbles | 0.00 (0.00, 0.01) | 0.91 (0.83, 0.99) | 0.01 (0.00, 0.01) | 0.07 (−0.01, 0.15) | 0.01 (0.00, 0.01) | 0.01 (0.00, 0.01) | |
| Msikaba | 0.01 (0.00, 0.01) | 0.24 (0.18, 0.29) | 0.69 (0.67, 0.70) | 0.06 (0.01, 0.11) | 0.01 (0.00, 0.01) | 0.01 (0.00, 0.01) | |
| Umzimkulu | 0.01 (0.00, 0.01 | 0.27 (0.23, 0.30) | 0.01 (0.00, 0.01) | 0.70 (0.67, 0.74) | 0.01 (0.00, 0.01) | 0.01 (0.00, 0.01) | |
| Skeerpoort | 0.01 (0.00, 0.01) | 0.24 (0.21, 0.26) | 0.01 (0.00, 0.01) | 0.01 (0.00, 0.03) | 0.73 (0.71, 0.76) | 0.01 (0.00, 0.01) | |
| Kransberg | 0.01 (0.00, 0.02) | 0.26 (0.24, 0.29) | 0.01 (0.00, 0.02) | 0.02 (0.00, 0.03) | 0.03 (0.01, 0.04) | 0.68 (0.67, 0.68) |
BayesAss estimates the fraction of migrants in each population from different sources (populations). The source populations are given in columns and recipient populations in rows. Bold values along diagonal are non-migrant proportions. The 95% confidence interval is provided in parentheses. Migration rates below 0.10 were used to indicate demographic independence30.