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Relative contribution of abundant and rare species to species–energy relationships

Evans, K.L., Greenwood, J.J.D. and Gaston, K.J. (2005) Relative contribution of abundant and rare species to species–energy relationships. Biology Letters, 1 (1). pp. 87-90. ISSN 1744-957X

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Abstract

A major goal of ecology is to understand spatial variation in species richness. The latter is markedly influenced by energy availability and appears to be influenced more by common species than rare ones; species–energy relationships should thus be stronger for common species. Species–energy relationships may arise because high-energy areas support more individuals, and these larger populations may buffer species from extinction. As extinction risk is a negative decelerating function of population size, this more-individuals hypothesis (MIH) predicts that rare species should respond more strongly to energy. We investigate these opposing predictions using British breeding bird data and find that, contrary to the MIH, common species contribute more to species–energy relationships than rare ones.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © Royal Society 2005. Reproduced in accordance with the publisher's self-archiving policy.
Keywords: abundance, commonness, more-individuals hypothesis, rarity, range size, species richness
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Science (Sheffield) > School of Biological Sciences (Sheffield) > Department of Animal and Plant Sciences (Sheffield)
Depositing User: Repository Officer
Date Deposited: 28 Jun 2006
Last Modified: 15 Nov 2014 04:29
Published Version: http://www.journals.royalsoc.ac.uk/openurl.asp?gen...
Status: Published
Publisher: The Royal Society
Refereed: Yes
Identification Number: 10.1098/rsbl.2004.0251
URI: http://eprints.whiterose.ac.uk/id/eprint/1416

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