Table 4. Sampling effort (number of variable circular plot (VCP) stations) required for three levels of statistical confidence of extinction (i.e., desired posterior probabilities) (V) across a range of prior probabilities of extinction (Q) for two prior probability distributions.
| |
| |
|
|
|
Poisson prior |
|
Q = |
|
0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
|
V = |
0.90: |
9,188 |
8,998 |
8,786 |
8,522 |
8,165 |
7,643 |
6,785 |
5,083 |
− |
|
|
0.95: |
9,414 |
9,322 |
9,218 |
9,090 |
8,916 |
8,662 |
8,244 |
7,416 |
4,942 |
|
|
0.99: |
9,587 |
9,568 |
9,548 |
9,523 |
9,489 |
9,439 |
9,357 |
9,195 |
8,710 |
|
Geometric prior |
|
Q = |
|
0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
|
V = |
0.90: |
8,559 |
8,425 |
8,253 |
8,024 |
7,703 |
7,222 |
6,419 |
4,815 |
− |
|
|
0.95: |
9,094 |
9,027 |
8,941 |
8,826 |
8,666 |
8,425 |
8,024 |
7,222 |
4,815 |
|
|
0.99: |
9,522 |
9,508 |
9,491 |
9,468 |
9,436 |
9,388 |
9,308 |
9,147 |
8,666 |
|
| |
|