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Related Experiment Video

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Microevolutionary processes impact macroevolutionary patterns.

Jingchun Li1,2,3, Jen-Pen Huang4,5, Jeet Sukumaran5

  • 1Department of Ecology and Evolutionary Biology, University of Colorado Boulder, Boulder, USA. jingchun.li@colorado.edu.

BMC Evolutionary Biology
|August 12, 2018
PubMed
Summary
This summary is machine-generated.

Microevolutionary processes can generate biodiversity patterns that macroevolutionary models cannot distinguish. Caution is needed when linking ecological factors to diversification rates without considering microevolutionary origins.

Keywords:
Birth-death modelLatitudinal gradientMicroevolutionProtracted speciationSpeciation duration

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Area of Science:

  • Evolutionary Biology
  • Ecology
  • Computational Biology

Background:

  • Macroevolutionary modeling is crucial for understanding biodiversity patterns, estimating speciation and extinction rates, and testing ecological factor influences.
  • Biodiversity patterns arise from microevolutionary processes at population levels, particularly when speciation and extinction are protracted.
  • Ignoring microevolutionary dynamics can limit understanding of macroevolutionary pattern drivers.

Purpose of the Study:

  • To demonstrate how distinct microevolutionary scenarios can yield similar macroevolutionary patterns using a protracted speciation framework.
  • To highlight the limitations of current macroevolutionary models in differentiating these microevolutionary scenarios.

Main Methods:

  • Simulation study utilizing the protracted speciation framework.
  • Analysis of biodiversity patterns, such as the latitudinal diversity gradient, generated by different microevolutionary scenarios.

Main Results:

  • Distinct microevolutionary scenarios can produce statistically indistinguishable macroevolutionary patterns.
  • Current macroevolutionary models may fail to differentiate between underlying microevolutionary processes.

Conclusions:

  • Inferring causal links between ecological factors and macroevolutionary rates requires caution due to the complexity of these rates.
  • Future research should integrate microevolutionary processes into macroevolutionary modeling for a more comprehensive understanding.