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The Evolution of Costly Mate Preferences II. The 'Handicap' Principle

Yoh Iwasa, Andrew Pomiankowski and Sean Nee
Evolution
Vol. 45, No. 6 (Sep., 1991), pp. 1431-1442
DOI: 10.2307/2409890
Stable URL: http://www.jstor.org/stable/2409890
Page Count: 12
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Abstract

We use a general additive quantitative genetic model to study the evolution of costly female mate choice by the "handicap" principle. Two necessary conditions must be satisfied for costly preference to evolve. The conditions are (i) biased mutation pressure on viability and (ii) a direct relationship between the degree of expression of the male mating character and viability. These two conditions explain the success and failure of previous models of the "handicap" principle. Our model also applies to other sources of fitness variation like migration and host-parasite coevolution, which cause effects equivalent to biased mutation.

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