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Sex, Gender, and Evolution Beyond Genes

Chapter
Part of the Crossroads of Knowledge book series (CROKNOW, volume 1)

Abstract

Gene-centered explanations of (a) how traits develop in individuals and (b) why traits evolve by natural selection have led to a view of the sexes that is equally deterministic and inflexible. Biologists now recognize that “nature” versus “nurture” is a false dichotomy, and similarly, feminist biologists have debunked many stereotyped views of sex by shedding light on the vast amount of variation in sex, sex determination, sex hormones, primary and secondary sex traits, and sex roles. However, while biologists have begun to move past gene-centric views of evolution, response to deterministic views of the evolution of sex and gender has been less pronounced. Furthermore, the idea that the sexes act in such a way as to get their genes into the next generation has led some scientists and many media outlets to paint a picture of a human nature where evolution has shaped promiscuous, sex-hungry males and coy, resource-vying females. Can the new tools that have challenged the gene-centric view of evolution also apply to evolution of sex and gender? In this article I will take on this question and outline how a perspective encompassing adaptive flexibility provides a nuanced and less deterministic view of sexual selection in nonhuman organisms and humans.

Keywords

Natural Selection Reproductive Success Female Genital Mutilation Neck Length Helper Male 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

Thanks to R. Bowen, E. Padgett, and M. Ah-King for several interesting conversations that led to this article. Thanks also to R. Bowen, A. Lau, M. Ah-King, A. Lee, and an anonymous reviewer for helpful comments on the manuscript. The author received funding from an NSF Pre-doctoral Fellowship while writing this article.

Glossary

Biological determinism

is the idea that any trait can be traced to either a single underlying gene or network of genes and that variation in such genes is the only target of natural selection.

Genetic accommodation

is an evolutionary process resulting from natural selection modifying the relative importance of environmental and/or genetic input to the production of a trait. Sometimes this results from an increase in genetic control of a trait, while other times this results from a decrease in genetic control of a trait.

Mechanisms of heredity

are ways in which traits are passed from parents to their offspring. Genes are one mechanism of heredity, but other, not genetic mechanisms include genomic imprinting and social behavior.

Natural selection

is a process that results in evolution wherein individuals with some trait variant survive more and/or leave more offspring than individuals with a different trait variant.

References

  1. 1.
    Hartman, M. (2010). “A gene for entrepreneurship?” Marketplace, American Public Media. http://marketplace.publicradio.org/display/web/2010/03/03/pm-entrepreneur-gene/. Posted 3 March 2010, accessed 17 Sept 2010.
  2. 2.
    Dawkins, R. (1989 [1976]). The selfish gene (2nd edn.). Oxford: Oxford University Press.Google Scholar
  3. 3.
    Jablonka, E., & Lamb, M. J. (2005). Evolution in four dimensions. Cambridge, MA: MIT Press.Google Scholar
  4. 4.
    Burt, A., & Trivers, R. (2006). Genes in conflict: The biology of selfish genetic elements. Cambridge, MA: Harvard University Press.Google Scholar
  5. 5.
    Bilkó, Á., Altbäcker, V., & Hudson, R. (1994). Transmission of food preference in the rabbit: The means of information transfer. Physiology & Behavior, 56, 907–912.CrossRefGoogle Scholar
  6. 6.
    de Waal, F. B. M. (1995). Bonobo sex and society. Scientific American, March 1995 issue, pp. 82–88.Google Scholar
  7. 7.
    Weidt, A., Hofmann, S. E., & König, B. (2008). Not only mate choice matters: Fitness consequences of social partner choice in female house mice. Animal Behaviour, 75, 801–808.CrossRefGoogle Scholar
  8. 8.
    West-Eberhard, M. J. (2003). Developmental plasticity and evolution. New York: Oxford University Press.Google Scholar
  9. 9.
    Waddington, C. H. (1956). Genetic assimilation of the bithorax phenotype. Evolution, 10, 1–13.CrossRefGoogle Scholar
  10. 10.
    Webster, M. S., Varian, C. W., & Karubian, J. (2008). Plumage color and reproduction in the red-backed fairy-wren: Why be a dull breeder? Behavioral Ecology, 19, 517–524.CrossRefGoogle Scholar
  11. 11.
    Karubian, J. (2008). Changes in breeding status are associated with rapid bill darkening in male red-backed fairy-wrens Malurus melanocephalus. Journal of Avian Biology, 39, 81–86.CrossRefGoogle Scholar
  12. 12.
    Gowaty, P. A. (2008). Reproductive compensation. Journal of Evolutionary Biology, 21, 1189–1200.PubMedCrossRefGoogle Scholar
  13. 13.
    Gowaty, P. A., et al. (2007). The hypothesis of reproductive compensation and its assumptions about mate preferences and offspring viability. Proceedings of the National Academy of Sciences , 104, 15023–15027.CrossRefGoogle Scholar
  14. 14.
    Young, A., et al. (2006). Stress and the suppression of subordinate reproduction in cooperatively breeding meerkats. Proceedings of the National Academy of Sciences , 103, 12005–12010.CrossRefGoogle Scholar
  15. 15.
    French, J., Abbott, D., & Snowdon, C. (1984). The effect of social environment on estrogen excretion, scent marking, and sociosexual behavior in tamarins (Saguinus oedipus). American Journal of Primatology, 6, 155–167.CrossRefGoogle Scholar
  16. 16.
    Hrdy, S. B. (1999). Mother nature. New York: Ballantine Books.Google Scholar
  17. 17.
    Janzen, F. J., & Paukstis, G. L. (1991). A preliminary test of the adaptive significance of environmental sex determination in reptiles. Evolution, 45, 435–440.CrossRefGoogle Scholar
  18. 18.
    Janzen, F. J., & Paukstis, G. L. (1991). Environmental sex determination in reptiles: Ecology, evolution, and experimental design. Quarterly Review of Biology, 66, 149–179.PubMedCrossRefGoogle Scholar
  19. 19.
    Ah-King, M., & Nylin, S. (2010). Sex in an evolutionary perspective: Just another reaction norm. Evolutionary Biology, 37, 234–246.PubMedCrossRefGoogle Scholar
  20. 20.
    Waage, J., & Gowaty, P. (1997). Myths of genetic determinism. In P. A. Gowaty (Ed.), Feminism and evolutionary biology: Boundaries, intersections, and frontiers. New York: Chapman & Hall.Google Scholar

Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  1. 1.Department of Ecology and Evolutionary BiologyUniversity of California, Los AngelesLos AngelesUSA

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