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Latitudinal Gradients in Species Diversity: A Review of Concepts

Eric R. Pianka
The American Naturalist
Vol. 100, No. 910 (Jan. - Feb., 1966), pp. 33-46
Stable URL: http://www.jstor.org/stable/2459377
Page Count: 14
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Latitudinal Gradients in Species Diversity: A Review of Concepts
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Abstract

The six major hypotheses of the control of species diversity are restated, examined, and some possible tests suggested. Although several of these mechanisms could be operating simultaneously, it is instructive to consider them separately, as this can serve to clarify our thinking, as well as assist in the choice of the best test situations for future examination.

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