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Cited by 118Evolution and Paleontology StudiesMorphological variations and asymmetryEvolution and Genetic Dynamics

Pulsed evolution shaped modern vertebrate body sizes

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Landis, Michael J., Schraiber, Joshua G.·2017·Proceedings of the National Academy of Sciences
DOI 10.1073/pnas.1710920114PMC PMC5740653

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Abstract

Significance: The diversity of forms found among animals on Earth is striking. Despite decades of study, it has been difficult to reconcile the patterns of diversity seen between closely related species with those observed when studying single species on ecological timescales. We propose a set of models, called Lévy processes, to attempt to reconcile rapid evolution between species with the relatively stable distributions of phenotypes seen within species. These models, which have been successfully used to model stock market data, allow for long periods of stasis followed by bursts of rapid change. We find that many vertebrate groups are well fitted by Lévy models compared with models for which traits evolve toward a stationary optimum or evolve in an incremental and wandering manner.

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  • A wide breadth of macroevolutionary data suggest that abrupt shifts and discontinuities have been a major feature of life on Earth.

    “a wide breadth of macroevolutionary data suggest that abrupt shifts and discontinuities have been a major feature of life on Earth”

    From Rethinking phylogenetic comparative methods (2018) · cites this paper as Landis and Schraiber 2017

    The Abstract describes evidence of rapid evolutionary pulses in fossil and ecological data, and the Discussion reports that jump models best explained body-size evolution in 32% of the 66 vertebrate clades studied. These passages support abrupt shifts as a feature of evolution, but the claim extends the finding to life on Earth generally; the paper says the prevalence of pulsed evolution across the Tree of Life remains unknown. Page numbers were not available in our copy. (LLM, conf=0.86)

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Authors
Landis, M. J., & Schraiber, J. G.
Affiliations
  • Yale University (US)
  • Temple University (US)
Corresponding author
Schraiber, Joshua G.
ORCID
Venue
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences
Published
2017-11-07
Volume
114
Issue
50
Pages
13224-13229
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
DOI
10.1073/pnas.1710920114
PMC
PMC5740653
OpenAlex
W2767280340
Cited by
118
References
0
Citations by year
2026: 6 · 2025: 10 · 2024: 12 · 2023: 18 · 2022: 14 · 2021: 11 · 2020: 10 · 2019: 23 · 2018: 12 · 2017: 2
FWCI
9.12
Type
journal article
Language
en
Open access
Licence
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion, cc-by-nc-nd)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
National Science Foundation (DBI-1612153, DBI-1402120)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
  • Physical Sciences › Mathematics › Geometry and Topology › Morphological variations and asymmetry
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
Keywords
Lévy processes, morphological evolution, Stasi, adaptive radiation, tipping points, comparative morphology, maximum likelihood fitting, evolutionary rates, fossil record
MeSH terms
Animals, Female, Male, Models, Genetic, Vertebrates, Evolution, Molecular, Body Size

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