Condition-dependent sex: Who does it, when and why?

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Abstract

We review the phenomenon of condition-dependent sex-where individuals’ condition affects the likelihood that they will reproduce sexually rather than asexually. In recent years, condition-dependent sex has been studied both theoretically and empirically. Empirical results in microbes, fungi and plants support the theoretical prediction that negative condition-dependent sex, in which individuals in poor condition are more likely to reproduce sexually, can be evolutionarily advantageous under a wide range of settings. Here, we review the evidence for condition-dependent sex and its potential implications for the long-term survival and adaptability of populations. We conclude by asking why condition-dependent sex is not more commonly observed, and by considering generalizations of condition-dependent sex that might apply even for obligate sexuals.

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Ram, Y., & Hadany, L. (2016, October 19). Condition-dependent sex: Who does it, when and why? Philosophical Transactions of the Royal Society B: Biological Sciences. Royal Society of London. https://doi.org/10.1098/rstb.2015.0539

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