From: Inter- and intraspecific genetic and morphological variation in a sibling pair of carabid species
| region | groups | source of variation | % var male | % var female |
|---|---|---|---|---|
| Guérande | P. chalceus/P. littoralis | among groups | 74.24 | 51.96 |
| among populations within groups | 17.50 | 29.57 | ||
| within populations | 8.26 | 18.47 | ||
| ponds/canals/P. littoralis | among groups | 84.96 | 72.08 | |
| among populations within groups | 2.35 | 4.28 | ||
| within populations | 12.69 | 23.63 | ||
| Europe | P. chalceus/P. littoralis | among groups | 68.37 | 48.37 |
| among populations within groups | 10.13 | 12.29 | ||
| within populations | 21.51 | 39.35 | ||
| stable/intermediate/temporary/P. littoralis | among groups | 49.39 | 33.87 | |
| among populations within groups | 5.00 | 7.61 | ||
| within populations | 45.62 | 58.53 |