Sex ratios and gender norms: why both are needed to understand sexual conflict in humans

Sexual conflict theory has been successfully applied to predict how in non-human animal populations, sex ratios can lead to conflicting reproductive interests of females and males and affect their bargaining positions in resolving such conflicts of interests. Recently this theory has been extended t...

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Main Authors: Renée V. Hagen, Brooke A. Scelza
Format: Article
Language:English
Published: Cambridge University Press 2024-01-01
Series:Evolutionary Human Sciences
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2513843X24000033/type/journal_article
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author Renée V. Hagen
Brooke A. Scelza
author_facet Renée V. Hagen
Brooke A. Scelza
author_sort Renée V. Hagen
collection DOAJ
description Sexual conflict theory has been successfully applied to predict how in non-human animal populations, sex ratios can lead to conflicting reproductive interests of females and males and affect their bargaining positions in resolving such conflicts of interests. Recently this theory has been extended to understand the resolution of sexual conflict in humans, but with mixed success. We argue that an underappreciation of the complex relationship between gender norms and sex ratios has hampered a successful understanding of sexual conflict in humans. In this paper, we review and expand upon existing theory to increase its applicability to humans, where gender norms regulate sex ratio effects on sexual conflict. Gender norms constrain who is on the marriage market and how they are valued, and may affect reproductive decision-making power. Gender norms can also directly affect sex ratios, and we hypothesize that they structure how individuals respond to market value gained or lost through biased sex ratios. Importantly, gender norms are in part a product of women's and men's sometimes conflicting reproductive interests, but these norms are also subject to other evolutionary processes. An integration of sexual conflict theory and cultural evolutionary theory is required to allow for a full understanding of sexual conflict in humans.
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spelling doaj.art-af6aa0b2fbab48fa975b1e8879d599d12024-02-26T09:28:31ZengCambridge University PressEvolutionary Human Sciences2513-843X2024-01-01610.1017/ehs.2024.3Sex ratios and gender norms: why both are needed to understand sexual conflict in humansRenée V. Hagen0https://orcid.org/0000-0002-3956-2209Brooke A. Scelza1https://orcid.org/0000-0001-5875-8875Department of Anthropology, University of California, Los Angeles. United States of AmericaDepartment of Anthropology, University of California, Los Angeles. United States of AmericaSexual conflict theory has been successfully applied to predict how in non-human animal populations, sex ratios can lead to conflicting reproductive interests of females and males and affect their bargaining positions in resolving such conflicts of interests. Recently this theory has been extended to understand the resolution of sexual conflict in humans, but with mixed success. We argue that an underappreciation of the complex relationship between gender norms and sex ratios has hampered a successful understanding of sexual conflict in humans. In this paper, we review and expand upon existing theory to increase its applicability to humans, where gender norms regulate sex ratio effects on sexual conflict. Gender norms constrain who is on the marriage market and how they are valued, and may affect reproductive decision-making power. Gender norms can also directly affect sex ratios, and we hypothesize that they structure how individuals respond to market value gained or lost through biased sex ratios. Importantly, gender norms are in part a product of women's and men's sometimes conflicting reproductive interests, but these norms are also subject to other evolutionary processes. An integration of sexual conflict theory and cultural evolutionary theory is required to allow for a full understanding of sexual conflict in humans.https://www.cambridge.org/core/product/identifier/S2513843X24000033/type/journal_articlegendered conflictbargainingsex ratiogender ideologygender norms
spellingShingle Renée V. Hagen
Brooke A. Scelza
Sex ratios and gender norms: why both are needed to understand sexual conflict in humans
Evolutionary Human Sciences
gendered conflict
bargaining
sex ratio
gender ideology
gender norms
title Sex ratios and gender norms: why both are needed to understand sexual conflict in humans
title_full Sex ratios and gender norms: why both are needed to understand sexual conflict in humans
title_fullStr Sex ratios and gender norms: why both are needed to understand sexual conflict in humans
title_full_unstemmed Sex ratios and gender norms: why both are needed to understand sexual conflict in humans
title_short Sex ratios and gender norms: why both are needed to understand sexual conflict in humans
title_sort sex ratios and gender norms why both are needed to understand sexual conflict in humans
topic gendered conflict
bargaining
sex ratio
gender ideology
gender norms
url https://www.cambridge.org/core/product/identifier/S2513843X24000033/type/journal_article
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