Habitat Destruction Impact On P-P Model

Volterra advanced P-P model: the predator-prey model in the 20th century.and then it explained a lot of biological phenomenas with successful, such as : individual movements;competition phenomena;predatory phenomena;altruism implications for the ecosystem.the people study P-P model for two goals:one to explain the change of density of prey and predator with the passed time,as well as the interaction between prey and predator, and this is the classic P-P modeljtwo to discuss the P-P model whether or not resch steady state after a long period,if it can achieve steady state,the state has three forms: prey and predator coexistence;Predator extinction, leaving prey;Prey and predator are extinction, the system collapsed.As a very practical significance model, so I introduce the origin of P-P models, and then introduce the P-P model's application in the individual movements;habitat fragmentation;habitat destruction;Biological diversity in the first chapter.I discuss the habitat destructions impact on P-P model.Michio Kondoh and Boscompte and Sole studied destroyed habitat, the number and location of its fixed P-P models. And the real world, the destruction of habitats and the location is not a fixed quantity, namely habitat destruction can be controlled , and good habitat may deteriorate. So I introduce the dynamic habitat destruction into P-P model, then I simulate P-P model with cellular automata in Van Neumann neighbour and stochastic neighbour.In conclusion:different parameters have different effect on P-P model in dissimilar neighbour and habitat destruction impact on predator more than prey.