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Community Structure, Population Control, and Competition

Nelson G. Hairston, Frederick E. Smith and Lawrence B. Slobodkin
The American Naturalist
Vol. 94, No. 879 (Nov. - Dec., 1960), pp. 421-425
Stable URL: http://www.jstor.org/stable/2458808
Page Count: 5
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Community Structure, Population Control, and Competition
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Abstract

In summary, then, our general conclusions are: (1) Populations of producers, carnivores, and decomposers are limited by their respective resources in the classical density-dependent fashion. (2) Interspecific competition must necessarily exist among the members of each of these three trophic levels. (3) Herbivores are seldom food-limited, appear most often to be predator-limited, and therefore are not likely to compete for common resources.

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