Fig. 1

Bathymetry (from Smith and Sandwell 1997) of Dumont d’Urville area overlayed with penguin foraging trips. Colours indicate incubation (black), early guard (red) and late guard (purple) phases. Each point corresponds to one logger record; colours indicate breeding stages, identity of birds isnot colour-discriminated. Depth signal corresponds to land (1000 to 0m), continental shelf (0 to -900m),continental slope (-1000 to-2500m) and the abyssal plain (below -2500m)