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Function in the Light of Frequency-Dependent Selection

Okasha, Samir (2022) Function in the Light of Frequency-Dependent Selection. [Preprint]

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Abstract

Christie et al. (2022) claim that the SE theory of function is premised on a simplistic view of evolution. In complex evolutionary scenarios, in particular those involving frequency-dependent selection (FDS), the SE theory fails, they argue, since citing a trait's SE function does not serve to explain why the trait exists. I argue that where FDS leads to a stable equilibrium, at which all individuals' trait values constitute a ``best response'' to the rest of the population, the SE theory can be straightforwardly applied. However matters are different if the evolutionary dynamics do not take the population to a stable equilibrium.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Okasha, SamirSamir.Okasha@bristol.ac.uk
Keywords: function, teleology, natural selection, frequency-dependence
Subjects: Specific Sciences > Biology > Evolutionary Theory
Specific Sciences > Biology > Function/Teleology
Depositing User: Dr Samir Okasha
Date Deposited: 12 Jul 2022 03:53
Last Modified: 12 Jul 2022 03:53
Item ID: 20871
Subjects: Specific Sciences > Biology > Evolutionary Theory
Specific Sciences > Biology > Function/Teleology
Date: 9 July 2022
URI: https://philsci-archive-dev.library.pitt.edu/id/eprint/20871

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