Competition and diffusive invasion in a noisy environment.
A competition--diffusion model is considered for conditions of invasibility of a certain model area occupied by a native species. The instability of the environment leads to temporary extinction of both species at a randomly chosen time and spatial range. The spatiotemporal dimension of these extreme fragmentation events as well as a possible selected removal of the invader turn out to be the crucial driving force of the system dynamics.
Malchow
Horst
H
Institute of Environmental Systems Research, University of Osnabrück, 49076 Osnabrück, Germany. malchow@uos.de
James
Alex
A
Brown
Richard
R
D000818:Animals; D003198:Computer Simulation; D017753:Ecosystem; D053476:Extinction, Biological; D008954:Models, Biological; D011235:Predatory Behavior