文档介绍：Predator-PreyProblemsAbstractWehaveestablishedapredator-preyunderinterferencesystemdynamicmodel,theevolutionequationsofthesystemandthecurveevolutionandtheevolutionofthephasediagram,respectivelydiscussedwithoutinterferenceandinterferenceeffectofevolutionofspecies,isillustratedbyconsideringadisturbaneemodelismorereasonable,butalsomoreconducivetotheevolutionofspeciesandnewspecies・Modelone:theestablishmentofamathematicalmodelofdifferentialequationmodeltodescribethepreyonrabbitsandfoxespreyecosystem,:the5forestrelatedparametersforrabbitsandfoxes,correlationanalysisbySPSSsoftwaretoachieveastateofequilibrium,:predatorpredatorintroductiontootherforeignaidnotonlytoeatfood,—apreypopulation,suchasrabbits,andapredatorpopulation,,itisreasonabletoexpectthatthetwopopulationsreactinsuchawayastoinfluenceeachother'-・Studyyourpredator-;petewithmassdeath;Model1:PredatorpreysystemmodelSimplicity,,rabbitsandfoxes,rabbitsattimetandthefoxdensityrespectively兀("and)⑺。Iftheprairiegrassisrichinresources,——= Growth,which人Rabbit'sgrowthrate,,therabbitgrowthtodrop,efficiencydecreaseddensityhypothesisdependsonrabbitsandfoxesandpredatorfoundandattackingprey,sothegrowthequationofrabbit(・preydxequation)for[6]:—=厂]*x(\-xa)-£xy(1)Intheformula,reflectstheabilityoffoxespreyonrabbits,can