Figures & data
Fig. 1 Study area. Gentoo penguin (Pygoscelis papua) colony at Stranger Point, King George Island (Isla 25 de Mayo), South Shetland Islands. The division of the colony into areas A and B is shown.
Fig. 2 Interannual comparison of local conditions recorded at the Stranger Point colony, from 2007/08 to 2010/11: (a) 2007: first week of November; (b) 2008: 10 November; (c) 2009: 5 December; (d) 2010: last week of November.
Fig. 3 Comparison of the spatial distribution of the breeding groups of gentoo penguin (Pygoscelis papua) at Stranger Point, from 2007/08 to 2010/11. The ovals show the notable redistribution observed during the 2009/10 breeding season. The locations of the breeding groups of Adélie penguin (Pygoscelis adeliae) are included for comparison.
Table 1 Measures of breeding success: number of eggs laid/breeding pairs and number of chicks hatched/breeding pairs, for the entire colony and separated by zones: areas A and B.
Table 2 Overall breeding success (chicks in crèche stage/breeding pairs) for the entire colony and by zone: areas A and B.
Table 3 Diet composition of gentoo penguins rearing chicks at Stranger Point during four study seasons. Frequency of occurrence (as percentage) and percent in weight of the items; the mean (g)±SD of the stomach contents weights are shown.
Table 4 Descriptive statistics of chicks fledging weight of gentoo penguins during 2007–10.