Title
Approaching the Ideal Free Distribution in Two-Species Competition Models with Fitness-Dependent Dispersal.
Abstract
This paper concerns the global existence and asymptotic behavior of solutions to some reaction-diffusion-advection models for two competing species, where the species have the same population dynamics but different dispersal strategies. When one species possesses a combination of random dispersal and directed movement upward along its fitness gradient whereas the other species adopts random dispersal, the global existence of smooth solutions to the quasi-linear parabolic system is established. When one species adopts the fitness-dependent dispersal but the other species does not disperse at all, we show the global existence of weak solutions to the degenerate parabolic-ODE system and further describe the asymptotic behavior of these weak solutions. In particular, we show that in the latter case the total population density approaches the so-called ideal free distribution in an appropriate sense.
Year
DOI
Venue
2014
10.1137/130934246
SIAM JOURNAL ON MATHEMATICAL ANALYSIS
Keywords
Field
DocType
quasi-linear parabolic system,degenerate parabolic-ODE system,global solution,asymptotic behavior
Degenerate energy levels,Population,Mathematical optimization,Parabolic system,Population density,Ideal free distribution,Asymptotic analysis,Biological dispersal,Mathematics
Journal
Volume
Issue
ISSN
46
2
0036-1410
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Yuan Lou184.81
Youshan Tao2227.04
Michael Winkler300.68