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Nonrandom mating preserves intrasexual polymorphism and stops population differentiation in sexual conflict

Härdling, Roger LU and Bergsten, J (2006) In American Naturalist 167(3). p.401-409
Abstract
Evolutionary conflict between the sexes is predicted to lead to sexual arms races in which male adaptations for acquiring mates (" offense" traits) are met by female counteradaptations - for example, to reduce mating rate (" defense" traits). Such coevolutionary chases may be perpetual. However, we show here that the coevolutionary process may also lead to a stable state in which multiple offense- defense trait pairs are maintained. This type of polymorphism below the species level is a result of sexual conflict in combination with nonrandom mating. Our results show that if nonrandom mating occurs with respect to male and female conflict traits, genetic correlations will act to stabilize the trait frequencies so that all morphs are... (More)
Evolutionary conflict between the sexes is predicted to lead to sexual arms races in which male adaptations for acquiring mates (" offense" traits) are met by female counteradaptations - for example, to reduce mating rate (" defense" traits). Such coevolutionary chases may be perpetual. However, we show here that the coevolutionary process may also lead to a stable state in which multiple offense- defense trait pairs are maintained. This type of polymorphism below the species level is a result of sexual conflict in combination with nonrandom mating. Our results show that if nonrandom mating occurs with respect to male and female conflict traits, genetic correlations will act to stabilize the trait frequencies so that all morphs are maintained. We discuss the results in special relation to the evolution of female polymorphism in diving beetles and argue that the process we describe may be a general force that maintains polymorphism in other taxa as well. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
American Naturalist
volume
167
issue
3
pages
401 - 409
publisher
University of Chicago Press
external identifiers
  • wos:000236143500009
  • scopus:33645507608
ISSN
0003-0147
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Animal Ecology (Closed 2011) (011012001)
id
16d0ed09-7d5f-4909-9d42-310e475cff5d (old id 164544)
alternative location
http://www.journals.uchicago.edu/cgi-bin/resolve?AN40921PDF
date added to LUP
2016-04-01 11:53:41
date last changed
2021-09-29 04:28:30
@article{16d0ed09-7d5f-4909-9d42-310e475cff5d,
  abstract     = {Evolutionary conflict between the sexes is predicted to lead to sexual arms races in which male adaptations for acquiring mates (" offense" traits) are met by female counteradaptations - for example, to reduce mating rate (" defense" traits). Such coevolutionary chases may be perpetual. However, we show here that the coevolutionary process may also lead to a stable state in which multiple offense- defense trait pairs are maintained. This type of polymorphism below the species level is a result of sexual conflict in combination with nonrandom mating. Our results show that if nonrandom mating occurs with respect to male and female conflict traits, genetic correlations will act to stabilize the trait frequencies so that all morphs are maintained. We discuss the results in special relation to the evolution of female polymorphism in diving beetles and argue that the process we describe may be a general force that maintains polymorphism in other taxa as well.},
  author       = {Härdling, Roger and Bergsten, J},
  issn         = {0003-0147},
  language     = {eng},
  number       = {3},
  pages        = {401--409},
  publisher    = {University of Chicago Press},
  series       = {American Naturalist},
  title        = {Nonrandom mating preserves intrasexual polymorphism and stops population differentiation in sexual conflict},
  url          = {http://www.journals.uchicago.edu/cgi-bin/resolve?AN40921PDF},
  volume       = {167},
  year         = {2006},
}