A Kind Of Ecosystem Model With Habitat Preferences

Nearly four decades, mathematical ecology has been rapidly developed, in which a central problem incommunity ecology is to understand the ecological forces leading to the observed patterns of coexistence orexclusion of competing species. The problem of understanding a few simple species composition ofcommunities co-exist with the species composition of a large number of "eco-diversity hot spots"is also very important.Community ecology is the study of a major problem can lead to the observed pattern ofcoexistence or competitive species out of eco-power. In order to understand the outcome ofcompetition among species with habitat preferences, this paper describes the development statusof biological mathematics, followed by the introduction of ecological systems, biologicalpopulations and population ecology of the relevant basic concepts, Moran process definition, atlast we established a simulated ecological model with habitat preferences from the perspective ofbiological invasion, and discussed the nature of the model by simulation. This paper alsoproposed a new problem, get the relation among the ratio of the fixation probability of anindividual of species one and species two, and the preference of species one to plant one which isfor food to species one and the preference of species two to plant two which is for food to planttwo, and the proportion of plant one occupy all plant and the total number of the wholepopulation. This paper also derivated the probability formula of the offspring of any kind of thistwo species mentioned above occupy the entire population, and also discussed the problemproposed above by Moran process and gived the corresponding results, we get the conclusions asfollows: ecosystem theory is effected by habitat preferences. The results have a certain referencevalue and significance to the study of the role of the species habitat preferences in speciescompetition.