(Table 4) Differences in king penguin (Aptenodytes patagonicus) colony arrivals and departures based on age, Possession Island

Mean proportion of penguin arrivals, departures, or arrivals + departures for old breeder (>=8 years old) and young breeders (<8 years old) at day (0.9-432.6 RgH) and night (0-0.8 RgH) luminosity levels. Mean proportion of arrivals was calculated as the ratio of arrivals at daytime (or nighttime) luminosity levels over arrivals + departures. Analogous calculations were done for the mean proportion of departures. N total=1,004 breeders.