Survival, maturity and fertility parameter values for northern fur seals.

Adult and juvenile survival scalar, maturity scalar and fertilities derived from all the northern fur seal (Callorhinus ursinus (L., 1758) models. Italicized values are parameters that the models estimated. For the % change multipliers under the Reproduction and Survival Senescence Linked (RSSL) models, we used mean fertilities and adult survival over ages and time periods because these were non-linear functions of age and time. 95% confidence limits calculated via the hessian are in parenthesis. The non-RSSL models multiplied percentage change scalars directly with the Leslie matrix elements to affect changes over time while the RSSL changed Sx which consequently changed the Leslie matrix elements.