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Evolution of size-dependent flowering in a variable environment: partitioning the effects of fluctuating selection

Rees, M., Childs, D.Z., Rose, K.E. and Grubb, P.J. (2004) Evolution of size-dependent flowering in a variable environment: partitioning the effects of fluctuating selection. Proceedings of the Royal Society B: Biological Sciences, 271 (1538). pp. 471-475. ISSN 1471-2954

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Abstract

In a stochastic environment, two distinct processes, namely nonlinear averaging and non-equilibrium dynamics, influence fitness. We develop methods for decomposing the effects of temporal variation in demography into contributions from nonlinear averaging and non-equilibrium dynamics. We illustrate the approach using Carlina vulgaris, a monocarpic species in which recruitment, growth and survival all vary from year to year. In Carlina the absolute effect of temporal variation on the evolutionarily stable flowering strategy is substantial (ca. 50% of the evolutionarily stable flowering size) but the net effect is much smaller (ca. 10%) because the effects of temporal variation do not influence the evolutionarily stable strategy in the same direction.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2004 The Royal Society. Reproduced in accordance with the publisher's self-archiving policy.
Keywords: nonlinear averaging, non-equilibrium dynamics, evolutionarily stable strategy
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: 26 Jun 2006
Last Modified: 05 Jun 2014 23:14
Published Version: http://www.journals.royalsoc.ac.uk/openurl.asp?gen...
Status: Published
Publisher: The Royal Society
Refereed: Yes
Identification Number: 10.1098/rspb.2003.2596
URI: http://eprints.whiterose.ac.uk/id/eprint/1395

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