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Science 7 February 1986:
Vol. 231. no. 4738, pp. 605 - 607
DOI: 10.1126/science.231.4738.605
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Articles

Herbivores' Direct and Indirect Effects on Algal Populations

ROBERT W. STERNER 1

1 Department of Ecology and Behavioral Biology, University of Minnesota, Minneapolis 55455.

The increase in algal reproductive rates caused by nitrogen regeneration from herbivorous zooplankton approximately equaled the zooplankton-caused mortality. This result demonstrates that nutrient regeneration by herbivores is at least sometimes a strong indirect effect in natural communities.

Submitted on April 22, 1985
Accepted on October 15, 1985


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