The effect of operational sex ratio on the opportunity for sexual selection: a meta-analysis

Moura, Rafael Rios; Peixoto, Paulo Enrique Cardoso

doi:10.1016/j.anbehav.2013.07.002

Cited by 27 publications

(12 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…That said, the pattern reported here, showing a negative relation between the sex ratio of the mating pool and the maximum potential for sexual selection, is all the more remarkable. Furthermore, we note that future studies of how the opportunity for sexual selection is related to sex ratios using individual-level data can correct for the inherent bias of I s with high ASR by using the measure of I diff suggested by Rios Moura and Peixoto [69].…”

Section: Box 2 the Sex Ratio And Opportunity For Sexual Selection Acmentioning

confidence: 96%

Too many men: the violence problem?

Schacht

Rauch

Mulder

2014

Trends in Ecology & Evolution

110

100

View full text Add to dashboard Cite

Section: Box 2 the Sex Ratio And Opportunity For Sexual Selection Acmentioning

confidence: 96%

Too many men: the violence problem?

Schacht

Rauch

Mulder

2014

Trends in Ecology & Evolution

110

100

View full text Add to dashboard Cite

“…Sex-specific viability following hybridization may result in skewed sex ratios. The operational sex ratio (OSR; Glossary) may affect intrasexual mating competition [101], but empirical evidence for an effect of OSR on mating competition is mixed [102] because skewed sex ratios might also increase the cost of mate guarding [103]. A recent meta-analysis concluded that there is compelling evidence that OSR predicts strength of sexual selection in males, but not females [104].…”

Section: (B) Sex-ratio Distortionmentioning

confidence: 99%

Hybridization, sex-specific genomic architecture and local adaptation

Runemark

Eroukhmanoff

Nava-Bolaños

et al. 2018

Phil. Trans. R. Soc. B

View full text Add to dashboard Cite

While gene flow can reduce the potential for local adaptation, hybridization may conversely provide genetic variation that increases the potential for local adaptation. Hybridization may also affect adaptation through altering sexual dimorphism and sexual conflict, but this remains largely unstudied. Here, we discuss how hybridization may affect sexual dimorphism and conflict due to differential effects of hybridization on males and females, and then how this, in turn, may affect local adaptation. First, in species with heterochromatic sexes, the lower viability of the heterogametic sex in hybrids could shift the balance in sexual conflict. Second, sex-specific inheritance of the mitochondrial genome in hybrids may lead to cytonuclear mismatches, for example, in the form of 'mother's curse', with potential consequences for sex ratio and sex-specific expression. Third, sex-biased introgression and recombination may lead to sex-specific consequences of hybridization. Fourth, transgressive segregation of sexually antagonistic alleles could increase sexual dimorphism in hybrid populations. Sexual dimorphism can reduce sexual conflict and enhance intersexual niche partitioning, increasing the fitness of hybrids. Adaptive introgression of alleles reducing sexual conflict or enhancing intersexual niche partitioning may facilitate local adaptation, and could favour the colonization of novel habitats. We review these consequences of hybridization on sex differences and local adaptation, and discuss how their prevalence and importance could be tested empirically.This article is part of the theme issue 'Linking local adaptation with the evolution of sex differences'.

show abstract

“…The Operational sex ratio (OSR; Glossary) affects the mating competition of males and females in a population [89]. The empirical evidence for this pattern is mixed [90], with one confounding factor arising as skewed sex ratios might increase the cost of mate guarding [91]. A recent meta-analysis concluded that there is compelling evidence that OSR predicts strength of sexual selection in males, but not females [92].…”

Section: 2) Sex Ratio Distortionmentioning

confidence: 99%

Hybridization, sex specific genomic architecture and local adaptation

Runemark

Eroukhmanoff

Bolanos

et al. 2018

Preprint

View full text Add to dashboard Cite

While gene flow can reduce the potential for local adaptation, hybridization may conversely provide genetic variation that increases the potential for local adaptation.Hybridization may also affect adaptation through altering sexual dimorphism and sexual conflict, but this remains largely unstudied. Here, we discuss how hybridization may affect sexual dimorphism and conflict due to differential effects of hybridization on males and females, and then how this in turn may affect local adaptation. First, the lower viability of the heterogametic sex in hybrids could shift the balance in sexual conflict. Second, sex-specific inheritance of the mitochondrial genome in hybrids may lead to cyto-nuclear mismatches, for example in the form of "mother's curse", with potential consequences for sex-ratio and sex specific expression. Third, transgressive segregation of sexually antagonistic alleles could lead to greater sexual dimorphism in hybrid populations. These mechanisms can reduce sexual conflict and enhance intersexual niche partitioning, increasing the fitness of hybrids. Adaptive introgression of alleles reducing sexual conflict or enhancing intersexual niche partitioning may facilitate local adaptation, and could favour the colonization of novel habitats. We review these consequences of hybridization on sex differences and local adaptation, and discuss how their prevalence and importance could be tested empirically.

show abstract

The effect of operational sex ratio on the opportunity for sexual selection: a meta-analysis

Cited by 27 publications

References 79 publications

Too many men: the violence problem?

Too many men: the violence problem?

Hybridization, sex-specific genomic architecture and local adaptation

Hybridization, sex specific genomic architecture and local adaptation

Contact Info

Product

Resources

About