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Avoiding AttackThe Evolutionary Ecology of Crypsis, Warning Signals and Mimicry$
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Graeme D. Ruxton, Tom N. Sherratt, and Michael P. Speed

Print publication date: 2004

Print ISBN-13: 9780198528609

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780198528609.001.0001

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The initial evolution of warning displays

The initial evolution of warning displays

Chapter:
(p.104) CHAPTER 8 The initial evolution of warning displays
Source:
Avoiding Attack
Author(s):

Graeme D. Ruxton

Thomas N. Sherratt

Michael P. Speed

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198528609.003.0009

This chapter considers the mechanisms by which aposematic signals might evolve and be maintained. Of particular importance are the roles of spatial aggregation and kin selection in the evolution of such signals, and the co-evolution of defence and signals of that defence. The initial evolution of aposematism is particularly interesting and challenging, since aposematic signals are expected to be more effective when they are commonplace, thus an initial rare mutant might be expected to be at a disadvantage.

Keywords:   rare conspicuous mutants, sexual selection, aggregation, kin-selection, optimal conspicuousness, facultative aposematism

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