Population Trends for Three Penguin Species

Population Trends for Three Penguin Species

Population trends for three penguin species in the Anvers Island vicinity, 1975 to 2006. The numbers on the graph indicate percentage change from initial sampling year for each species. Credit: H. Ducklow, Marine Biological Laboratory; K. Baker and M. Vernet, University of California, San Diego; D.G. Martinson and S.E. Stammerjohn, Lamont- Doherty Earth Observatory; L.B. Quetin, R.M. Ross, and R.C. Smith, University of California, Santa Barbara; and W. Fraser, Polar Oceans Research Group (reproduced from Philosophical Transactions of the Royal Society B with permission from Royal Society Publishing).

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Modeling, Ecosystems & Biodiversity