Title
Persistence and Spread of a Species with a Shifting Habitat Edge.
Abstract
We study a reaction-diffusion model that describes the growth and spread of a species along a shifting habitat gradient on which the species' growth increases. It is assumed that the linearized species growth rate is positive near positive infinity and is negative near negative infinity. We show that the persistence and spreading dynamics depend on the speed of the shifting habitat edge c and a number c*(infinity) that is determined by the maximum linearized growth rate and the diffusion coefficient. We demonstrate that if c > c*(infinity), then the species will become extinct in the habitat, and that if c < c*(infinity), then the species will persist and spread along the shifting habitat gradient at an asymptotic spreading speed c*(infinity).
Year
DOI
Venue
2014
10.1137/130938463
SIAM JOURNAL ON APPLIED MATHEMATICS
Keywords
Field
DocType
reaction-diffusion equation,shifting habitat edge,persistence,spreading speed
Extended real number line,Habitat,Mathematical analysis,Persistence (computer science),Reaction–diffusion system,Mathematics,Growth rate
Journal
Volume
Issue
ISSN
74
5
0036-1399
Citations 
PageRank 
References 
3
0.84
0
Authors
4
Name
Order
Citations
PageRank
Bingtuan Li1359.86
Sharon Bewick230.84
Jin Shang331.18
William F. Fagan430.84