It is shown that a trick introduced by H. R. Thieme  to study a one-species integral equation model with a nonmonotone operator can be used to show that some multispecies reaction-diffusion systems which are cooperative for small population densities but not for large ones have a spreading speed. The ideas are explained by considering a model for the interaction between ungulates and grassland.
|Original language||English (US)|
|Number of pages||12|
|Journal||Discrete and Continuous Dynamical Systems|
|State||Published - Mar 2009|
- Partially cooperative
- Reaction-diffusion system
- Spreading speed