Model selection for the move persistence mixed effects model fitted to 22 naïve grey seal pup tracks interpolated at a six-hour time step and estimate move persistence (γt).

Fixed effects: week = week of tracking, body mass and length at weaning, postwean = time between weaning and first trip to sea, distshore = distance nearest 0 m isobath, and depth = ln-transformed water column depth. Pup identity is included as a random intercept. The number of degrees of freedom (df), log-Likelihood (LL), second-order Akaike Information Criterion (AICc), difference in AICc from that of the best-supported model (ΔAICc), and Akaike weight (wi) are presented. The best-supported model is indicated in bold. Coefficient estimates, standard errors, and p-values of predictor variables are shown for the best-supported move persistence mixed-effects model. Coefficients with significant p-values are indicated in bold. The quantile range (5% and 95%) of parameter estimates from leave-one-out cross validation of the most parsimonious model are presented with the estimated trend (Est Trend) which represents the percentage of cross validation models where the estimated coefficients fall within the 95% confidence intervals of the parameter estimates from the model including all individuals.