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Risk management in biological evolution.

Andreas Wagner1

  • 1Department of Biology, University of New Mexico, 167A Castetter Hall, Albuquerque, NM 817131-1091, USA. wagnera@unm.edu

Journal of Theoretical Biology
|October 16, 2003
PubMed
Summary
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This study introduces a framework for understanding how organisms evolve to manage rare, life-threatening risks. It predicts the persistence of these risk management traits under different catastrophic scenarios.

Area of Science:

  • Evolutionary Biology
  • Risk Management Theory

Background:

  • Evolutionary biology lacks a robust theory for managing rare, life-threatening risks, despite their prevalence in nature.
  • Risk management is well-developed in economics and applicable to biological systems.

Purpose of the Study:

  • To develop a theoretical framework for studying the evolution of rare risk management traits.
  • To predict the evolutionary stability of these traits under varying environmental pressures.

Main Methods:

  • Conceptual framework development.
  • Comparative analysis of risk management in economics and biology.
  • Modeling trait evolution under different risk scenarios.

Main Results:

  • Predictions on the sustenance of risk management traits when risks cause individual death versus population extinction.

Related Experiment Videos

  • Identified biological examples: bacterial sporulation, pathogen antibiotic resistance, bacteriophage life cycles, and adaptations to environmental disasters.

    • Conclusions:

    • A comprehensive theory of risk management can explain the distribution of evolved traits.
    • This framework may aid in reconstructing an organism's evolutionary environmental history from genomic data.