General statistical model shows that macroevolutionary patterns and processes are consistent with Darwinian gradualism.

doi:10.1038/s41467-022-28595-z

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Article

General statistical model shows that macroevolutionary patterns and processes are consistent with Darwinian gradualism.

Nature communications - 2 Mar 2022

Pagel Mark, O'Donovan Ciara, Meade Andrew

Abstract excerpt

Macroevolution posed difficulties for Darwin and later theorists because species' phenotypes frequently change abruptly, or experience long periods of stasis, both counter to the theory of incremental change or gradualism. We introduce a statistical model that accommodates this uneven evolutionary landscape by estimating two kinds of historical change: directional changes that shift the mean phenotype along the...

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PMID: 35236836
DOI: 10.1038/s41467-022-28595-z
PMCID: PMC8891346

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