Fig. 7From: A critical assessment of marine predator isoscapes within the southern Indian OceanPlasma δ13C (left) and δ15N (right) isoscapes of a) gentoo, b) eastern rockhopper and c) macaroni penguins interpolated using ordinary kriging from the isotopic composition of the respective birds’ plasmas which were simultaneously tracked with GPS data loggers. Points represent mean foraging locations. Isobaths (grey) are shown at 200 m intervals with 200 m isobath in blackBack to article page