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Wang, X.* ; Efendiyev, M.A. ; Lutscher, F.*

How spatial heterogeneity affects transient behavior in reaction-diffusion systems for ecological interactions?

Bull. Math. Biol. 81, 3889-3917 (2019)
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Most studies of ecological interactions study asymptotic behavior, such as steady states and limit cycles. The transient behavior, i.e., qualitative aspects of solutions as and before they approach their asymptotic state, may differ significantly from asymptotic behavior. Understanding transient dynamics is crucial to predicting ecosystem responses to perturbations on short timescales. Several quantities have been proposed to measure transient dynamics in systems of ordinary differential equations. Here, we generalize these measures to reaction-diffusion systems in a rigorous way and prove various relations between the non-spatial and spatial effects, as well as an upper bound for transients. This extension of existing theory is crucial for studying how spatially heterogeneous perturbations and the movement of biological species involved affect transient behaviors. We illustrate several such effects with numerical simulations.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Reaction-diffusion Systems ; Transient Dynamics ; Spatially Heterogeneous Perturbations; Dynamics; Stability; Persistence; Resilience; Responses
ISSN (print) / ISBN 0092-8240
e-ISSN 1522-9602
Quellenangaben Band: 81, Heft: 10, Seiten: 3889-3917 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort 233 Spring St, New York, Ny 10013 Usa
Begutachtungsstatus Peer reviewed