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Effect of age on the breeding probability—parameter estimates from the best model—SNOW PETREL—estimates of each parameter are presented with their standard error (s.e.). (bpann: inter-annual variations in breeding probability).
| two thresholds | ||
|---|---|---|
| term | estimate | s.e. |
| (intercept) | −36.339 | 68.620 |
| slope before the first threshold age | 5.630 | 11.437 |
| slope between the first and the second threshold ages | 0.021 | 0.013 |
| slope after the second age threshold | −1.281 | 0.568 |
| bpann | 4.714 | 0.435 |
