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Nature 440, 613-614 (30 March 2006) | doi:10.1038/440613a; Published online 29 March 2006

Ecology: Green and pleasant trials

Peter D. Moore1

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In the 1980s, a large lake — Lago Guri — was created as part of a hydroelectric project in Venezuela. Islands in the lake have enabled ecologists to test a fundamental hypothesis in their discipline.

Why is the world green? Why have grazing animals with their insatiable appetites not consumed all vegetation and reduced the land to dust?

  1. Peter D. Moore is in the Department of Biochemistry, King's College London, Franklin Wilkins Building, 150 Stamford Street, London SE1 9N, UK.
    Email: peter.moore@kcl.ac.uk

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