Table 2.
Population parameters and survival estimates, SE, and 95% credible intervals used and derived from the population model.
Parameter | Description | Time period (weeks) | Mean | SE | 2.5% | 97.5% |
---|---|---|---|---|---|---|
λ | Population trend | – | 0.965 | 0.022 | 0.922 | 1.010 |
f | Annual reproductive output | – | 3.060 | 0.030 | 3.001 | 3.119 |
Sad | Annual adult survival | 52 | 0.475 | 0.020 | 0.436 | 0.515 |
Sjuv | Juvenile first-year survival | 52 | 0.160 | 0.010 | 0.141 | 0.179 |
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Adult nonbreeding survival | 49 | 0.490 | 0.023 | 0.447 | 0.538 |
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Juvenile nonbreeding survival | 49 | 0.507 | 0.081 | 0.377 | 0.694 |
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Adult survival breeding sites | 3 | 0.971 | 0.020 | 0.922 | 0.996 |
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Juvenile postfledging survival | 3 | 0.322 | 0.045 | 0.235 | 0.411 |
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Adult nonbreeding survival | 3 | 0.957 | 0.003 | 0.952 | 0.963 |
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Juvenile nonbreeding survival | 3 | 0.959 | 0.009 | 0.942 | 0.978 |
For comparability reasons, survival estimates are shown for different time periods (in weeks). Annual reproductive output per individual represents half of the annual output per pair; b, breeding grounds; non-b, nonbreeding ranges, including migration; 3 w, standardized to a 3-week period.