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Drivers of krill availability in the Antarctic Peninsula region. (A) A conceptual summary of the historic and recent ecosystem perturbations in the Antarctic Peninsula region and their hypothesized implication for the availability of Antarctic krill to penguins in the genus Pygoscelis including (B) chinstrap (P. antarctica) and (C) gentoo (P. papua) penguins. (A) Adapted with permission from ref. 20.
