Table 1. Sampling configurations.
Characteristics of the sampling configurations used to simulate capture-mark-recapture of brown bears on the Kenai Peninsula, south-central Alaska, USA. Attributes included the timing of the simulation (period), position of traps (placement), whether traps were stationary or moved between capture sessions, cell area (km2) or trap spacing (km), the number of traps in each of 5 capture sessions, and effort (trap-nights).
| Sampling configuration |
Period | Placement | Stationary (S) or Moved (M) |
Cell area or spacing |
No. traps per capture session |
Total effort (trap-nights) |
|---|---|---|---|---|---|---|
| Grid | 6/1–7/20 | Cell Center | S | 49, 81, 121 | 322, 195, 135 | 16,100, 9,750, 6,750 |
| Grid | 6/1–7/20 | Random | S | 49, 81, 121 | 322, 195, 135 | 16,100, 9,750, 6,750 |
| Grida | 6/1–7/20 | Expert opinion | S | 49, 81, 121 | 322, 195, 135 | 16,100, 9,750, 6,750 |
| Grida | 6/1–7/20 | Expert opinion | M | 49, 81, 121 | 322, 195, 135 | 16,100, 9,750, 6,750 |
| Targeted | 7/10–8/28 | Systematic | S | 17, 19 | 324, 312 | 16,200, 15,600 |
| Targeteda | 7/10–8/28 | Expert opinion | S | N/A | 140, 70 | 7,000, 3,500 |
| Targeteda | 7/10–8/28 | Expert opinion | M | N/A | 140, 70 | 7,000, 3,500 |
Notes.
a
These configurations were analyzed and compared (each configuration had 30 simulations). The other configurations produced inaccurate abundances.