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Science 4 February 1966:
Vol. 151. no. 3710, p. 592
DOI: 10.1126/science.151.3710.592
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Articles

Correction to One of MacArthur's Species-Abundance Formulas

E. C. Pielou 1 and A. Neil Arnason 1

1 Statistical Research Service, Canada Department of Agriculture, Ottawa

The expected relative abundances of the commoner species in a biological population are less if the niches are overlapping than if they are non-overlapping. MacArthur's mathematical arguments, which lead to the opposite conclusion, are incorrect.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)