Table 2. Abundance and connectivity parameters for G. glyphis.
(A) Estimates of population abundance and kinship parameters. (B) Estimated connectivity parameters. The connectivity values give the probability an animal with origin river r′ reproduces in r. For example, the model estimates that only 1% of male sharks originating in the Adelaide River reproduce in the Alligator rivers.
| (A) Estimated parameters | Joint | Adelaide | Alligators |
|---|---|---|---|
| Abundance N0 | 2020 | 892 | 1128 |
| CV (N0) | (0.28) | (0.21) | (0.47) |
| Adult annual survival, ϕ | 0.88 | ||
| Litter effect, ν | – | 3.42 | 7.28 |
| Multiple paternity θ | 0.00043 | – | – |
| Multiple females/male γ | 1.83 | – | – |
| Fixed population parameters | |||
| Sex ratio (% female), ζ | 0.4 | ||
| Population growth rate, λ | 0 | ||
| (B) Estimated connectivity parameters | River | Adelaide | Alligators |
| Sex | |||
| Female | Adelaide | 0.99 | 0.01 |
| Alligators | 0.88 | 0.12 | |
| Male | Adelaide | 0.99 | 0.01 |
| Alligators | 0.55 | 0.45 |