September 16 (Wed) at 10:00 - 11:00, 2020 (JST)
  • Dr. Hye Jin Park (Junior Research Group Leader, Statistical physics of ecology and evolution group, Asia Pacific Center for Theoretical Physics, Republic of Korea)
  • via Zoom

Evolution is driven by individual birth and death that are determined by interactions between individuals. Hence studying interactions is crucial to understand the population evolution. However, traditional approaches dealt with those interaction structures are given while spontaneous random mutations can generate new interactors. We considered “mutant interactors,” which lead to new interactions between the residents and invading mutants that can drive the population away from the previous equilibrium and lead to changes in the population composition. Thus, first, we investigated the changes in the population size induced by mutant interactors[1]. And then, we applied this approach to answer the question about relationships between species[2]: Why is cyclic dominance so rare?


  1. Hye Jin Park, Yuriy Pichugin, Weini Huang, and Arne Traulsen, Population size changes and extinction risk of populations driven by mutant interactors, Phys. Rev. E 99, 022305 (2019).
  2. Hye Jin Park, Yuriy Pichugin, Arne Traulsen, Why is cyclic dominance so rare?, eLife 2020;9:e57857 (2020).

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