News FocusEcology

When Do Many Species Matter?

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Science  25 Aug 2000:
Vol. 289, Issue 5483, pp. 1283
DOI: 10.1126/science.289.5483.1283

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Ecologists agree that experimental plots of grasses are sometimes more productive when they harbor more species. But some disagree passionately about whether it matters--in other words, whether this proves that biodiversity is critical to ecosystem health (see main text).