Table 2.
The estimates of divergence time (t) and migration rates per generation (m) between the regional populations based on population tree (figure 2), and effective population sizes (Ne). Divergence time was converted into calendar years using generation time (G) of 25 years [13], and per-generation mutation rates of 5.0 × 10−4 [29,30] and 2.34 × 10−4 [31]. Migration rate per generation was also converted using two mutation rates. The estimations were based on the marginal a posteriori densities, and credibility intervals were obtained using the 90% of highest posterior density interval (HPDI) and the 95%.
| pair of regional populations |
mutation rate (µ) | divergence time (t) in yr |
migration rate per generation (m) |
effective population size (Ne) |
||||
|---|---|---|---|---|---|---|---|---|
| population 1 (P1) | population 2 (P2) | Highest posterior value (upper; 90% HPDI, lower; 95% CI) |
m to P1 | m to P2 | P1 | P2 | ||
| Nicholson–Gregory | Roper | 5.00 × 10−4 | 9750 | (4250–20 250) | 0.00042 | 0.00406 | 108.3 | 162.4 |
| (5250–26 750) | ||||||||
| 2.34 × 10−4 | 20 833 | (9081–43 269) | 0.00020 | 0.00190 | 231.4 | 347.0 | ||
| (11 218–57 158) | ||||||||
| Roper | Finke | 5.00 × 10−4 | 15 375 | (6625–30 875) | 0.00207 | 0.00026 | 178.6 | 226.1 |
| (7625–38 875) | ||||||||
| 2.34 × 10−4 | 32 852 | (13 632–63 529) | 0.00097 | 0.00012 | 381.6 | 483.1 | ||
| (16 293–83 066) | ||||||||