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Evaluation of the Storage Stability of Extracellular Vesicles
11:31

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Published on: May 22, 2019

Evolution of the storage effect.

Peter A Abrams1, Caroline M Tucker, Benjamin Gilbert

  • 1Department of Ecology and Evolution, University of Toronto, 25 Harbord St., Toronto, Ontario M5S 3G5, Canada. peter.abrams@utoronto.ca

Evolution; International Journal of Organic Evolution
|January 30, 2013
PubMed
Summary
This summary is machine-generated.

The storage effect promotes species coexistence in variable environments. Evolutionary models show it can evolve through trade-offs in competitive ability, even between identical species.

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Theoretical Ecology

Background:

  • The storage effect is crucial for species coexistence in fluctuating environments.
  • Evolutionary models traditionally predict selection hinders or reduces the storage effect.
  • Ecological studies highlight its importance in natural communities.

Purpose of the Study:

  • To investigate the evolutionary conditions favoring the emergence of the storage effect.
  • To reconcile ecological observations with evolutionary predictions regarding species coexistence.

Main Methods:

  • Development of a lottery competition model.
  • Application of an adaptive evolution framework.
  • Analysis of species trade-offs across two environmental conditions (years).

Main Results:

  • The storage effect evolves through divergence in species' relative performance.
  • Evolution is favored when trade-offs in competitive ability are sufficiently strong.
  • Storage can evolve even between initially identical species or lineages.
  • The model extends to multiple species and environmental variations.

Conclusions:

  • The storage effect can evolve under a wide range of conditions involving inter-annual competitive trade-offs.
  • These findings align with empirical observations of species coexistence.
  • The evolutionary pathways for the storage effect resemble those of other resource partitioning mechanisms.