Extinction and the temporal distribution of macroevolutionary bursts

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dc.contributor.authorDe Lisle, Stephen P.
dc.contributor.authorPunzalan, David
dc.contributor.authorRollinson, Njal
dc.contributor.authorRowe, Locke
dc.date.accessioned2021-03-08T18:50:22Z
dc.date.available2021-03-08T18:50:22Z
dc.date.copyright2020en_US
dc.date.issued2020
dc.description.abstractPhenotypic evolution through deep time is slower than expected from microevolutionary rates. This is the paradox of stasis. Previous models suggest stasis occurs because populations track adaptive peaks that remain relatively stable on million‐year intervals, raising the equally perplexing question of why these large changes are so rare. Here, we consider the possibility that peaks can move more rapidly than populations can adapt, resulting in extinction. We model peak movement with explicit population dynamics, parameterized with published microevolutionary estimates. Allowing extinction greatly increases the parameter space of peak movements that yield the appearance of stasis observed in real data through deep time. Extreme peak displacements, regardless of their frequency, will rarely result in an equivalent degree of trait evolution because of extinction. Thus, larger peak displacements will rarely be inferred using trait data from extant species or observed in fossil records. Our work highlights population ecology as an important contributor to macroevolutionary dynamics, presenting an alternative perspective on the paradox of stasis, where apparent constraint on phenotypic evolution in deep time reflects our restricted view of the subset of earth's lineages that were fortunate enough to reside on relatively stable peaks.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipNSERC; Canada Research Chairs Program; Swedish Research Councilen_US
dc.identifier.citationDe Lisle, S. P., Punzalan, D., Rollinson, N., & Rowe, L. (2020). Extinction and the temporal distribution of macroevolutionary bursts. Journal of Evolutionary Biology, 34(2), 380-390. https://doi.org/10.1111/jeb.13741en_US
dc.identifier.urihttps://doi.org/10.1111/jeb.13741
dc.identifier.urihttp://hdl.handle.net/1828/12756
dc.language.isoenen_US
dc.publisherJournal of Evolutionary Biologyen_US
dc.subjectmacroevolution
dc.subjectmicroevolution
dc.subjectpopulation dynamics
dc.subjectstabilizing selection
dc.subjectstasis paradox
dc.subjectsurvivorship bias
dc.subject.departmentDepartment of Biology
dc.titleExtinction and the temporal distribution of macroevolutionary burstsen_US
dc.typeArticleen_US

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