Evolutionarily stable mating decisions for sequentially searching females and the stability of reproductive isolation by assortative mating

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Priklopil , T , Kisdi , E & Gyllenberg , M 2015 , ' Evolutionarily stable mating decisions for sequentially searching females and the stability of reproductive isolation by assortative mating ' , Evolution , vol. 69 , no. 4 , pp. 1015-1026 . https://doi.org/10.1111/evo.12618

Title: Evolutionarily stable mating decisions for sequentially searching females and the stability of reproductive isolation by assortative mating
Author: Priklopil, Tadeas; Kisdi, Eva; Gyllenberg, Mats
Contributor: University of Helsinki, Department of Mathematics and Statistics
University of Helsinki, Department of Mathematics and Statistics
University of Helsinki, Department of Mathematics and Statistics
Date: 2015-04
Language: eng
Number of pages: 12
Belongs to series: Evolution
ISSN: 0014-3820
URI: http://hdl.handle.net/10138/229908
Abstract: We consider mating strategies for females who search for males sequentially during a season of limited length. We show that the best strategy rejects a given male type if encountered before a time-threshold but accepts him after. For frequency-independent benefits, we obtain the optimal time-thresholds explicitly for both discrete and continuous distributions of males, and allow for mistakes being made in assessing the correct male type. When the benefits are indirect (genes for the offspring) and the population is under frequency-dependent ecological selection, the benefits depend on the mating strategy of other females as well. This case is particularly relevant to speciation models that seek to explore the stability of reproductive isolation by assortative mating under frequency-dependent ecological selection. We show that the indirect benefits are to be quantified by the reproductive values of couples, and describe how the evolutionarily stable time-thresholds can be found. We conclude with an example based on the Levene model, in which we analyze the evolutionarily stable assortative mating strategies and the strength of reproductive isolation provided by them.
Subject: Assortative mating
cost of choosiness
mistakes of assessment
optimal mate choice
reproductive isolation
sequential search
MATE CHOICE
SEXUAL SELECTION
SYMPATRIC SPECIATION
COMPETITIVE SPECIATION
ADAPTIVE DYNAMICS
CICHLID FISH
PREFERENCES
TIME
HYBRIDIZATION
STICKLEBACKS
1181 Ecology, evolutionary biology
112 Statistics and probability
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