Table 1.
Population genetic parameters from the analysis of microsatellite genotypes of workers of five Bombus species in the study landscape, based on all loci (upper part of the table; worker sample sizes as in Table 2) and based on the 5 homologous loci genotyped in all species (lower part of the table; worker sample sizes standardized to 88 workers in each species, corresponding to the lowest sample size for any single species, which was in B. ruderatus)
| Species | No. of loci | HO | HE | A | AE | FIS | P |
|---|---|---|---|---|---|---|---|
| All loci | |||||||
| B. terrestris | 14 | 0.79 (0.025) | 0.81 (0.025) | 15.50 (2.511) | 6.21 (0.709) | 0.020 (0.009) | 0.003 |
| B. lapidarius | 13 | 0.74 (0.029) | 0.74 (0.027) | 11.23 (1.311) | 4.39 (0.415) | 0.011 (0.005) | 0.019 |
| B. pascuorum | 14 | 0.66 (0.058) | 0.67 (0.062) | 12.07 (2.205) | 4.60 (0.904) | 0.013 (0.010) | 0.039 |
| B. hortorum | 10 | 0.83 (0.042) | 0.84 (0.040) | 19.50 (2.738) | 9.55 (1.898) | 0.017 (0.015) | 0.018 |
| B. ruderatus | 11 | 0.73 (0.032) | 0.75 (0.032) | 10.55 (0.976) | 4.56 (0.551) | 0.023 (0.015) | 0.071 |
| Homologous loci | |||||||
| B. terrestris | 5 | 0.85 (0.018) | 0.87 (0.016) | 17.40 (3.682) | 7.69 (0.851) | ||
| B. lapidarius | 5 | 0.74 (0.041) | 0.76 (0.043) | 9.60 (1.720) | 4.66 (0.805) | ||
| B. pascuorum | 5 | 0.78 (0.061) | 0.79 (0.061) | 14.40 (3.957) | 6.62 (1.961) | ||
| B. hortorum | 5 | 0.79 (0.090) | 0.80 (0.074) | 16.20 (3.720) | 9.04 (3.291) | ||
| B. ruderatus | 5 | 0.76 (0.047) | 0.76 (0.045) | 9.20 (1.393) | 4.82 (0.907) | ||
HO, mean (SE) observed heterozygosity; HE, mean (SE) expected heterozygosity; A, mean (SE) number of alleles; AE, mean (SE) effective number of alleles; FIS, inbreeding coefficient (SE); P, significance values from tests of the FIS values against zero.