Oscillations and patterns in interacting populations of two species

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2008
Major/Subject
Mcode
Degree programme
Language
en
Pages
050903/1-4
Series
Physical Review E, Volume 78, Issue 5
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.
Description
Keywords
interacting populations, population dynamics
Other note
Citation
Peltomäki, Matti & Rost, Martin & Alava, Mikko J. 2008. Oscillations and patterns in interacting populations of two species. Physical Review E. Volume 78, Issue 5. 050903/1-4. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.78.050903.