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Related Experiment Video

Updated: Mar 14, 2026

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The evolutionary consequences of behavioural plasticity.

Carlos A Botero1

  • 1Department of Integrative Biology, University of Texas at Austin, Austin, TX, USA. carlos.botero@austin.utexas.edu.

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Summary
This summary is machine-generated.

Behavioral plasticity helps organisms persist in changing environments by buffering natural selection. This can slow or accelerate adaptive evolution depending on environmental conditions and time scales.

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Area of Science:

  • Evolutionary biology
  • Behavioral ecology
  • Genetics

Background:

  • Organisms adjust to environmental changes via behavioral adjustments, a process known as buffering natural selection.
  • The evolutionary consequences of this behavioral plasticity are not well understood.

Purpose of the Study:

  • To investigate how behavioral plasticity influences the speed and type of adaptive evolution.
  • To explore the role of behavioral adjustments in shaping evolutionary trajectories.

Main Methods:

  • Evolutionary simulations were used to model the effects of behavioral plasticity.
  • The simulations explored different timescales and ecological opportunities.

Main Results:

  • Behavioral plasticity enhances persistence in suboptimal environments and increases genetic variation.
  • It can lead to slower morphological and physiological evolution over short timescales or with limited niche expansion.
  • A "Goldilocks" pattern emerges over longer timescales or with abundant opportunities, where moderate plasticity maximizes evolutionary rates.

Conclusions:

  • Behavioral plasticity has distinct mechanisms and broader impacts than other forms of phenotypic plasticity.
  • It can influence evolutionary trajectories and challenges risk-assessment frameworks that equate slow evolution with vulnerability.