Table 3. Parameter estimation under the finite island model (FIM).
| Model FIM | Median | Mode | 0.025a | 0.975a | Priorb |
|---|---|---|---|---|---|
| SCD | |||||
| Nanc | 33,567 | 42,704 | 1604 | 62,242 | U: 100–100,000 |
| Ti | 72,760 | 56,354 | 24,124 | 141,628 | U: 100–200,000 |
| Nm | 52.85 | 47.17 | 38.80 | 109.77 | U: 0.05–250 |
| SID | |||||
| Nanc | 31,016 | 30,737 | 1571 | 86,026 | U: 100–100,000 |
| Ti | 63,431 | 61,671 | 6095 | 163,634 | U: 100–200,000 |
| Nm | 42.04 | 38.61 | 28.51 | 117.80 | U: 0.05–250 |
| Pooled dataset | |||||
| Nanc | 52,541 | 58,148 | 8176 | 84,492 | U: 100–100,000 |
| Ti | 65,004 | 18,329 | 4255 | 176,692 | U: 100–200,000 |
| Nm | 58.7 | 51.4 | 38.3 | 150.9 | U: 0.05–250 |
Nanc: effective population size of the ancestral deme; Ti: time of the onset of the island (in generations); Nm: product of the effective population size N and the migration rate m for each deme; SCD: scatter dataset (9 individuals); SID: single deme dataset (11 individuals); pooled dataset: SCD + SID without shared samples (18 individuals).
aUpper and lower limits of the 95% credible interval about the estimated mode.
bU, uniform probability, in the range of the two values.