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Updated: Jun 26, 2026

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
Published on: February 3, 2023
Oscillations and patterns in interacting populations of two species
Matti Peltomäki1, Martin Rost, Mikko Alava
1Department of Applied Physics, Helsinki University of Technology, P.O. Box 1100, 02015 Helsinki Institute of Technology, Espoo, Finland.
Abstract:
Interacting populations often create complicated spatiotemporal behavior, and understanding it is a basic problem in the dynamics of spatial systems. We study the two-species case by simulations of a host-parasitoid model. In the case of coexistence, there are spatial patterns leading to noise-sustained oscillations. We introduce a measure for the patterns, and explain the oscillations as a consequence of a time-scale separation and noise. They are linked together with the patterns by letting the spreading rates depend on instantaneous population densities. Applications are discussed.
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