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The evolution of postpairing male mate choice

An increasing number of empirical studies in animals have demonstrated male mate choice. However, little is known about the evolution of postpairing male choice, specifically which occurs by differential allocation of male parental care in response to female signals. We use a population genetic mode...

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Detalles Bibliográficos
Autores principales: Lyu, Nan, Servedio, Maria R., Lloyd, Huw, Sun, Yue‐Hua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5518233/
https://www.ncbi.nlm.nih.gov/pubmed/28369908
http://dx.doi.org/10.1111/evo.13241
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author Lyu, Nan
Servedio, Maria R.
Lloyd, Huw
Sun, Yue‐Hua
author_facet Lyu, Nan
Servedio, Maria R.
Lloyd, Huw
Sun, Yue‐Hua
author_sort Lyu, Nan
collection PubMed
description An increasing number of empirical studies in animals have demonstrated male mate choice. However, little is known about the evolution of postpairing male choice, specifically which occurs by differential allocation of male parental care in response to female signals. We use a population genetic model to examine whether such postpairing male mate choice can evolve when males face a trade‐off between parental care and extra‐pair copulations (EPCs). Specifically, we assume that males allocate more effort to providing parental care when mated to preferred (signaling) females, but they are then unable to allocate additional effort to seek EPCs. We find that both male preference and female signaling can evolve in this situation, under certain conditions. First, this evolution requires a relatively large difference in parental investment between males mated to preferred versus nonpreferred females. Second, whether male choice and female signaling alleles become fixed in a population versus cycle in their frequencies depends on the additional fecundity benefits from EPCs that are gained by choosy males. Third, less costly female signals enable both signaling and choice alleles to evolve under more relaxed conditions. Our results also provide a new insight into the evolution of sexual conflict over parental care.
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spelling pubmed-55182332017-08-03 The evolution of postpairing male mate choice Lyu, Nan Servedio, Maria R. Lloyd, Huw Sun, Yue‐Hua Evolution Original Articles An increasing number of empirical studies in animals have demonstrated male mate choice. However, little is known about the evolution of postpairing male choice, specifically which occurs by differential allocation of male parental care in response to female signals. We use a population genetic model to examine whether such postpairing male mate choice can evolve when males face a trade‐off between parental care and extra‐pair copulations (EPCs). Specifically, we assume that males allocate more effort to providing parental care when mated to preferred (signaling) females, but they are then unable to allocate additional effort to seek EPCs. We find that both male preference and female signaling can evolve in this situation, under certain conditions. First, this evolution requires a relatively large difference in parental investment between males mated to preferred versus nonpreferred females. Second, whether male choice and female signaling alleles become fixed in a population versus cycle in their frequencies depends on the additional fecundity benefits from EPCs that are gained by choosy males. Third, less costly female signals enable both signaling and choice alleles to evolve under more relaxed conditions. Our results also provide a new insight into the evolution of sexual conflict over parental care. John Wiley and Sons Inc. 2017-04-21 2017-06 /pmc/articles/PMC5518233/ /pubmed/28369908 http://dx.doi.org/10.1111/evo.13241 Text en © 2017 The Author(s). Evolution published by Wiley Periodicals, Inc. on behalf of The Society for the Study of Evolution. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs (http://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Original Articles
Lyu, Nan
Servedio, Maria R.
Lloyd, Huw
Sun, Yue‐Hua
The evolution of postpairing male mate choice
title The evolution of postpairing male mate choice
title_full The evolution of postpairing male mate choice
title_fullStr The evolution of postpairing male mate choice
title_full_unstemmed The evolution of postpairing male mate choice
title_short The evolution of postpairing male mate choice
title_sort evolution of postpairing male mate choice
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5518233/
https://www.ncbi.nlm.nih.gov/pubmed/28369908
http://dx.doi.org/10.1111/evo.13241
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