Table 2.
Estimates of the probability juvenile survival and density increased or decreased a given percentage after BDAs were installed on study sites in Bridge Creek, OR, 2007–2012
| Parameter | ≥0 % | ≥20 % | ≥30 % | ≥50 % | ≥100 % |
|---|---|---|---|---|---|
| Increase | |||||
| Survival | 1.00a | 0.99 | 0.88 | 0.17 | 0.00 |
| Density | 1.00 | 1.00 | 0.99 | 0.82 | 0.00 |
| Decrease | |||||
| Survival | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Density | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
aProbabilities are based on a posterior distribution of relative change (), which is the geometric mean of the ratios (for each period) of survival and density on the treatment watershed (Bridge Creek) relative to the control watershed (Murderers Creek), with the ratio after divided by the ratio before BDAs were installed