Table 3.
Results of the mismatch distribution analyses for the demographic and spatial expansions of the Bulinus species from Lake Victoria populations and time since expansion
| Bulinus truncatus | Bulinus sp. 2 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Demographic expansion | Spatial expansion | Demographic expansion | Spatial expansion | |||||||||
| Lentic sand substrate | Lentic stones & rock substrates | Lotic habitats | Lentic sand substrate | Lentic stones & rock substrates | Lotic habitats | Islands | Swamp papyrus | Marshesa | Islands | Swamp papyrus | Marshesa | |
| SSD (P-value) | 0.095 (0.280) | 0.079 (< 0.0001) | 0.024 (0.160) | 0.095 (0.430) | 0.069 (0.040) | 0.020 (0.600) | 0.023 (0.130) | 0.087 (0.010) | 0.069 (0.170) | 0.021 (0.370) | 0.059 (0.100) | 0.063 (0.410) |
| RI (P-value) | 0.310 (0.280) | 0.219 (< 0.0001) | 0.073 (0.280) | 0.310 (0.510) | 0.219 (0.110) | 0.073 (0.640) | 0.032 (0.450) | 0.092 (0.580) | 0.213 (0.200) | 0.032 (0.680) | 0.092 (0.430) | 0.213 (0.390) |
| Theta0/Theta | 0.000 | 1.900 | 0.000 | 0.05589 | 0.001 | 0.001 | 0.000 | 5.500 | 1.622 | 0.010 | 0.010 | 1.180 |
| Theta1 | 16.211 | 3414.978 | 34.961 | 46.951 | 3414.978 | 49.882 | ||||||
| τ (Cl) | 3.469 (2.258-6.211) | 4.000 (2.822–7.725) | 5.556 (2.994–7.803) | 3.233 (1.555-6.146) | 5.811 (2.309–7.509) | 5.363 (2.788–7.639) | 6.277 (3.646–8.352) | 5.000 (3.555–13.682) | 5.438 (3.344–10.984) | 6.121 (3.805–7.578) | 7.234 (2.901–8.282) | 5.453 (2.619–10.173) |
| T in years | 222,824 | 256,951 | 356,946 | 207,694 | 373,288 | 344,497 | 403,243 | 321,188 | 349,293 | 393,184 | 464,678 | 350,287 |
| ΔT in years | ± 77,788 | ± 75,655 | ± 164,610 | ± 107,823 | ± 224,936 | ± 165,400 | ± 169,000 | ± 92,843 | ± 134,498 | ± 148,784 | ± 278,312 | ± 182,033 |
Abbreviations: SSD, sum of squared deviations; RI, raggedness index; CI, 95% confidence interval; τ, population parameter Tau; T, time since expansion
aWater hyacinth