14333.帶有食餌庇護(hù)的三種群模型分析

1、分類景，UDQ：‘密飄。壘_開(kāi)一舅毋聲夕擎碩士研究生學(xué)位論文帶有食餌庇護(hù)的三種群模型分析申請(qǐng)人：高美學(xué)號(hào)：2131045培養(yǎng)單位：數(shù)學(xué)科學(xué)學(xué)院學(xué)科專業(yè)：數(shù)學(xué)研究方向：微分方程及其數(shù)學(xué)生物學(xué)指導(dǎo)教師：張繼民副教授完成日期：AbstractThepreyrefugescharacterizeaphenomenonthatthereexistdifferentformsofpreyspeciesconservationinordertopro

2、tectthepreyspecies，andplayanimportantroleinthemaintenanceofecologicalbalanceandprotectingbiodiversityThreespeciesecologicalmodelswhichdescribethecomplexrelationshipsbetweenthespecieshaveimportanttheoreticalvalueandpracti

3、calsignificancetoke印theecosystembalanceandmaintainthesystemstabilityInthispaper，weanalyzethreekindsofimportantthreespeciesecologicalmodelswithpreyrefuges，thatis，theapparentcompetitionmodelwithpreyrefuges，intraguildpredat

4、ionmodelwithpreyrefugesandfoodchainmodelwithpreyrefugesOnthebasicoftheoreticalanalysisoftheapparentcompetitionmodelwithpreyrefuges，wefirstdiscusstheeffectofpreyrefugesinprotectingbiodiversityandcontrollingthealieninvasiv

5、especiesResearchresultsrevealthefollowingtwocases：whentheabilityofresistpredationoftwopreysisalmostthesame，preyrefugesarenegativeinprotectingbiodiversity；whentheabilityofresistpredationoftwopreyshasagreatdifference，thewe

6、akerofthepreywithpreyrefugesishelpfultoprotectbiodiversityandmaintaintheecologicalbalanceIfapreyisanalienspeciesintheapparentcompetitionmodel，thelocalspecieswithpreyrefugescanavoidthelocalspeciesextinctionandcontroltheal

7、ienspeciesThenweexploretheroleofpreyrefugesforthreespeciescoexistenceofintraguildpredationInviewofthetheoreticalanalysisandnumericalsimulation，weshowthatwhensharedresourceandintraguildpreywithpreyrefugeshaveapositiveeffe

8、ctinkeepingthreespeciescoexistenceatacertainrangeFinallywestudythefoodchainmodelwithpreyrefugesWeshowpreyrefugesisnegativeformaintainingthestabilityofthefoodchain，butwhenthetoppredatorisinvasivespecies，localpreywithpreyr