Dispersal and Pattern Formation in a Discrete-Time Predator-Prey Model

摘要: We investigate the dispersal-driven instabilities that arise in a discrete-time predator-prey model formulated as system of integrodifference equations. Integrodifference equations contain two components: (1) difference equations, which growth and interactions during sedentary stage, (2) redistribution kernels, characterize distribution dispersal distances vagile stage. Redistribution kernels have been measured for tremendous number organisms. derive from first principles. generate pattern under far broader set ecological conditions than do reaction-diffusion models. delineate necessary instability two-species systems follow this with detailed analysis particular model.