Alpha diversity over time for seal pups and weaners.

a) and c) show observed index and b) and d) show Shannon index. Distributions of the alpha diversity index are visualized by violin and box plots. Different colours represent the feeding the seal received at the sample timepoint. Black dots represent outliers, the horizontal black line is the median (or medians), and the significance level (significant codes: 0 ‘***’, 0.001 ‘**’, 0.01 ‘*’, NS = non-significant) is shown on the top of the figures. In weaners (c and d), there were no significant differences.