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Developmental-behavioral initiation of evolutionary change.

Gilbert Gottlieb1

  • 1Center for Developmental Science, University of North Carolina at Chapel Hill, 27599-8115, USA. gottlieb@email.unc.edu

Psychological Review
|May 7, 2002
PubMed
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Evolutionary psychology traditionally focuses on natural selection. This study highlights the crucial role of developmental changes and migration in evolution, proposing a new scenario beyond genetic mutation and selection.

Area of Science:

  • Evolutionary Psychology
  • Developmental Biology
  • Genetics

Background:

  • Traditional evolutionary psychology emphasizes natural selection as the sole driver of adaptation.
  • This perspective overlooks the essential role of developmental changes in providing the raw material for evolution.
  • The neo-Darwinian model includes mutation, selection, migration, and reproductive isolation as key evolutionary mechanisms.

Purpose of the Study:

  • To propose an alternative evolutionary scenario that incorporates developmental changes and migration.
  • To challenge the exclusive reliance on natural selection in evolutionary psychology.
  • To introduce the concept of evolutionary pluralism in understanding evolutionary processes.

Main Methods:

  • Conceptual analysis of existing evolutionary theories.

Related Experiment Videos

  • Description of a novel 3-stage evolutionary scenario.
  • Exploration of evolutionary pluralism.

    • Main Results:

    • Developmental changes are a prerequisite for evolutionary change, providing material for natural selection.
    • Migration into new niches can initiate evolutionary change independently of mutation or selection.
    • A new 3-stage evolutionary model is presented.

    Conclusions:

    • Evolutionary psychology should consider a broader range of mechanisms beyond natural selection.
    • Developmental processes and migration play critical, often underestimated, roles in evolution.
    • Evolutionary pluralism offers a more comprehensive framework for understanding evolutionary change.