SARA WADIE IBRAHIM FADUL ALMULA2022-10-122022-10-122014http://hdl.handle.net/123456789/17595We make a few theoretical remarks on an extremely simple but general meta- community models in order to examine whether a certain a mount of dispersal is needed in order to synchronize the metacommunity. We apply the general model of analysis presented based on the computation of Lyapunov exponents to the study of prey-predator systems and food-web models. We introduced a simple ecological food web model that exhibits UPCA and we compared it with a Riivssler system.enEcological Systems -statisticalThesis