Table 1. Trappability statistics and estimated population size using mark-recapture methods for each session (1–5) of the Kilkenny study area.
| Session # | n | T | t | N | MNA | pCSpM (95% CI) | pMNA (95% CI) | MNA – N (% difference) | pCSpM - pMNA |
| 0 | 122 | ||||||||
| 1 | 302 | 224 | 86 | 783 | 440 | 38.39 (32.27–44.92) | 68.63 (64.07–72.95) | −43.78 | −30.24 |
| 2 | 174 | 148 | 39 | 651 | 283 | 26.35 (19.92–34.00) | 61.48 (55.54–67.18) | −56.52 | −35.13 |
| 3 | 235 | 169 | 64 | 616 | 340 | 37.87 (30.90–45.39) | 69.12 (63.91–73.99) | −44.83 | −31.25 |
| 4 | 213 | 150 | 50 | 633 | 313 | 33.33 (26.29–41.23) | 68.05 (62.57–73.18) | −50.52 | −34.72 |
| 5 | 250 | 63 | 19 | 802 | 294 | 30.16 (20.24–41.99) | 85.03 (80.43–88.91) | −63.35 | −54.87 |
| 6 | 128 | ||||||||
| Mean (all) | 203 | 151 | 52 | 697 | 334 | 33.22 (25.92–41.50) | 70.46 (65.30–75.24) | −51.80 | −37.24 |
| SD | 66 | 88 | 63 | 5.12 | 8.72 | 8.22 | 10.08 | ||
| Mean (reduced) | 235∧ | 671* | 344* | 33.99 (27.31–41.38)* | 68.82 (61.52–71.83)* | −48.91* | −32.84* | ||
| SD | 47 | 76 | 68 | 5.57 | 3.59 | 5.87 | 2.45 |
The captures are presented both including and excluding the potentially biased estimates of session five.
∧
excluding partial sessions 0 and 6.
*
excluding potentially biased estimates from session 5.
n is the number of badgers captured; T is the closed-subpopulation; t is the number of badgers captured from T; N is the estimated population from the closed-subpopulation model (CSpM); MNA is the minimum number alive; pCSpM is the trappability for each i th session derived from the CSpM; pMNA is the trappability for each i th session derived from the MNA estimates; 95% CI is the exact confidence intervals for a proportion assuming no prior information.