Table 1.
Summary of genetic results for the Pikku Tytärsaari (PT, Russia), the Saaremaa (SA, Estonia), and the Åland Islands (ÅL, Finland) populations
| PT | SA | ÅL | |
| Island area, km2 | 1.5 | 2,673 | 13,517 |
| Sample size | 69 | 59 | 28 |
| No. of alleles (SD) | 3.57 (0.54) | 10.57 (2.44) | 8.14 (3.0) |
| Expected heterozygosity (SD) | 0.43 (0.09) | 0.73 (0.07) | 0.72 (0.21) |
| Observed heterozygosity (SD) | 0.47 (0.12) | 0.58 (0.14)* | 0.53 (0.16)* |
| Gene diversity (SD)† | 0.37 (0.22) | 0.65 (0.36) | 0.62 (0.34) |
| Shared alleles with PT only (total) | 7 (20) | 1 (13) | |
| Fst with PT | 0.28 | 0.41 | |
| Inbreeding DyadML (variance)‡ | 0.36 (0.06) | 0.31 (0.06) | 0.40 (0.05) |
| Relatedness DyadML (variance)‡ | 0.80 (0.10) | 0.27 (0.07) | 0.39 (0.05) |
*All seven markers were included in the analysis although four markers showed indication of null alleles in SA and ÅL populations, probably due to a very large size range of alleles.
†Gene diversity refers to expected heterozygosity over all data and is calculated with Arlequin (94).
‡Dyadic maximum-likelihood inbreeding (F; tests for deviation from random mating) and relatedness values are calculated with the Coancestry (95) program. Variance refers to the 95% confidence interval for 1,000 bootstrapping samples.