Does interspecific competition limit the sizes of ranges of species?. American Museum novitates ; no. 2716

Supplemental Materials

Date

1981

Journal Title

Journal ISSN

Volume Title

Publisher

New York, N.Y. : American Museum of Natural History

DOI

DOI

Abstract

"A 'competition hypothesis' states that the species in faunas with more species (more diversity) have greater competition, narrower niches, and therefore smaller geographic ranges (less distribution). An alternative 'available space hypothesis' states that species occupy suitable available space without regard to the presence or absence of other species. We use American bats and North American rodents as groups to discriminate between the two hypotheses and see that available space is a better predictor of distribution than is diversity. Thus, the competition hypothesis is weakened and the available space hypothesis is strengthened"--p. [1].

Description

10 p. : ill., 2 maps ; 26 cm.
Includes bibliographical references (p. 10).

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