Survival, maturity and fertility parameter values for Steller sea lions.

Adult and juvenile survival scalar, maturity scalar and fertilities derived from a representative selection of Steller sea lion (Eumetopias jubatus (Schreber, 1776)) 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 likelihood profile method are in parenthesis where LBR indicates the Limit of Biological Realism where for example, the adult survival scalar could not drop below a particular level that would result in negative adult survival at any age. 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. HFYS coefficients were taken directly from Holmes et al. (2007). “w J/T” indicates models that included the Juvenile/(Juvenile+Adult) ratio data in fitting the model.