Table 5. Estimates for census size (= N), number of breeders (= Nb), and effective population size (= Ne) for the New Mexico Ridge-nosed Rattlesnake, Crotalus willardi obscurus (= CWO) in the Animas Mountain sky island.
| Parameter | CWO | CC | VB |
|---|---|---|---|
| N | 151 | n/a | 166 |
| Nb | 24 | n/a | 17 |
| Ne | 38 | n/a | 28 |
| Nb/N | 0.159 | 0.188 | 0.102 |
| Ne/N | 0.252 | 0.231 | 0.169 |
| Nb/Ne | 0.632 | 0.811 | 0.607 |
Metrics for Loggerhead Sea Turtle, Caretta caretta (= CC) from literature, and the Adder, Vipera berus (= VB) from literature or estimated in this study. Ratios of the various parameters with census size (N) are also provided.