A1 Journal article (refereed)
Biological adaptation in light of the Lewontin–Williams (a)symmetry (2022)
Fromhage, L., & Houston, A. I. (2022). Biological adaptation in light of the Lewontin–Williams (a)symmetry. Evolution, 76(7), 1619-1624. https://doi.org/10.1111/evo.14502
JYU authors or editors
Publication details
All authors or editors: Fromhage, Lutz; Houston, Alasdair I.
Journal or series: Evolution
ISSN: 0014-3820
eISSN: 1558-5646
Publication year: 2022
Publication date: 11/05/2022
Volume: 76
Issue number: 7
Pages range: 1619-1624
Publisher: Wiley
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1111/evo.14502
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/81081
Abstract
Neo-Darwinism characterises biological adaptation as a one-sided process, in which organisms adapt to their environment but not vice versa. This asymmetric relationship – here called Williams’ asymmetry – is called into question by Niche Construction Theory, which emphasises that organisms and their environments often mutually affect each other. Here we clarify that Williams’ asymmetry is specifically concerned with (quasi-) directed modifications towards phenotypes that increase individual fitness. This directedness – which drives the adaptive fit between organism and environment – entails far more than the mere presence of cause-effect relationships. We argue that difficulties with invoking fitness as the guiding principle of adaptive evolution are resolved with an appropriate definition of fitness and that objections against Williams’ asymmetry reflect confusions about the nature of biological adaptation.
Keywords: evolution; natural selection; adaptation (change); environment; environmental changes
Free keywords: Williams’ asymmetry
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2022
JUFO rating: 3