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Published on: March 13, 2014
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Competition for resources can reshape the evolutionary properties of spatial structure.
Anush Devadhasan1, Oren Kolodny2, Oana Carja1
1Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, USA.
Biorxiv : the Preprint Server for Biology
|April 25, 2024
Summary
Ecological competition alters evolutionary network dynamics. Resource competition can reverse network roles, impacting deleterious mutant spread, a finding dependent on niche overlap.
Area of Science:
- Evolutionary Biology
- Ecology
- Network Theory
Background:
- Evolving ecosystems often exhibit spatial structures representable as networks.
- Previous models overlooked ecological niche differences and eco-evolutionary interplay.
Approach:
- Combined a resource competition model with evolutionary graph theory.
- Investigated how heterogeneous network structures influence evolutionary dynamics.
- Analyzed interactions under global frequency-dependent ecological pressures.
Key Points:
- Ecological competition can invert the roles of amplifier and suppressor networks for deleterious mutants.
- This role reversal is a non-linear function of ecological niche overlap.
- Simulations and analytical approximations provide insights into the observed dynamics.
Conclusions:
- Network topology and ecological competition interact to shape evolutionary trajectories.
- Understanding eco-evolutionary dynamics in structured populations is crucial.
- The study highlights the importance of incorporating ecological factors into evolutionary network models.
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