Table 3 Mate fidelity: number of individuals breeding with 4 groups
From: Nest site tenacity and mate fidelity in the Black-headed Gull (Chroicocephalus ridibundus)
Study area | Group 1 | Group 2 | Group 3 | Group 4 | Fidelity (%) | Divorce rate (%) |
|---|---|---|---|---|---|---|
Riether Werder A | 4 | 0 | 0 | 10 | 100.0 | 0 |
Riether Werder B | 8 | 1 | 0 | 13 | 88.9 | 0 |
Riether Werder A + B | 12 | 1 | 0 | 23 | 92.3 | 0 |
Böhmke Island A | 28 | 5 | 2 | 12 | 80.0 | 5.7 |
Böhmke Island B | 10 | 1 | 0 | 2 | 90.9 | 0 |
Böhmke Island A + B | 38 | 6 | 2 | 14 | 82.6 | 4.3 |
Total | 50 | 7 | 2 | 37 | 84.7 | 3.8 |