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Article

Environmental stress does not increase the mean strength of selection.

Journal of evolutionary biology - 1 Oct 2018

Arbuthnott Devin, Whitlock Michael C

Abstract excerpt

A common intuition among evolutionary biologists and ecologists is that environmental stress will increase the strength of selection against deleterious alleles and among alternate genotypes. However, the strength of selection is determined by the relative fitness differences among genotypes, and there is no theoretical reason why these differences should be exaggerated as mean fitness decreases. We update a...

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PMID: 29978525
DOI: 10.1111/jeb.13351

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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