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Brief Communications

Nature 409, 152 (11 January 2001) | doi:10.1038/35051660

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Marine ecology: Worms start the reef-building process

J. R. M. Chisholm1 & R. Kelley2

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For reefs to form in wave-swept environments, the sessile organisms that build them need stable foundations1, 2. Here we provide evidence that marine worms actively create patches of stable habitat on the sea bed which provide them with food and shelter. In so doing, they bring reef-building organisms together on hard surfaces and so create suitable conditions for reefs to develop.