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Dispersal in PlantsA Population Perspective$
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Roger Cousens, Calvin Dytham, and Richard Law

Print publication date: 2008

Print ISBN-13: 9780199299126

Published to Oxford Scholarship Online: May 2008

DOI: 10.1093/acprof:oso/9780199299126.001.0001

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The evolution of dispersal

The evolution of dispersal

(p.157) CHAPTER 8 The evolution of dispersal
Dispersal in Plants

Roger Cousens

Calvin Dytham

Richard Law

Oxford University Press

This chapter provides both a flavour of, and some insight into, the evolutionary forces at work shaping the amazing diversity of dispersal strategies seen in plants. For all plants, there is a tension between the advantages of a sedentary or short-distance dispersal strategy and those of a more dispersive one. The selective forces that act to increase or decrease evolved dispersal rates or distances are reviewed. The dispersal strategy adopted by a plant species is clearly shaped by a long history of interacting and competing forces. The relative strengths of these forces will inevitably wax and wane, and the interactions between them shift to change the overall selective pressure to disperse.

Keywords:   strategy, diversity, selection, interactions

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