CO2浓度和固氮菌对斜纹夜蛾幼虫及其寄生蜂生活史特征的影响的开题报告摘要：斜纹夜蛾是一种严重危害森林和果园的害虫，在全球气候变化的背景下其生态适应能力和天敌关系可能会发生变化。本研究旨在探究CO2浓度和固氮菌对斜纹夜蛾幼虫及其寄生蜂生活史特征的影响，并揭示其可能的机制。实验结果表明，高CO2浓度和固氮菌对斜纹夜蛾的幼虫存活率和生长速度均有显著影响，但对寄生蜂的寄生率和繁殖能力影响不大。此外，高CO2浓度和固氮菌也显著影响斜纹夜蛾幼虫对各种植物的取食和选择行为，进一步影响其与植物互动关系。这些结果表明斜纹夜蛾的生物学响应和危害程度可能受到全球气候变化和农业生态系统管理的影响。关键词：斜纹夜蛾；CO2浓度；固氮菌；生活史特征；互作关系。Abstract：Thefallarmywormisaseriouspestthatcausesgreatdamagetoforestsandorchards.Underthebackgroundofglobalclimatechange,itsecologicaladaptationabilityandpredator-preyrelationshipmaychange.ThisstudyaimstoexploretheeffectsofCO2concentrationandnitrogen-fixingbacteriaonthelifehistorycharacteristicsoffallarmywormlarvaeandtheirparasitoidwasps,andtorevealpossiblemechanisms.TheexperimentalresultsshowthathighCO2concentrationandnitrogen-fixingbacteriahavesignificanteffectsonthesurvivalrateandgrowthrateoffallarmywormlarvae,buthavelittleeffectontheparasitismrateandreproductivecapacityofparasitoidwasps.Inaddition,highCO2concentrationandnitrogen-fixingbacteriaalsosignificantlyaffectthefeedingandselectionbehavioroffallarmywormlarvaeonvariousplants,furtheraffectingtheirinteractionwithplants.Theseresultssuggestthatthebiologicalresponseanddamagedegreeoffallarmywormmaybeaffectedbyglobalclimatechangeandagriculturalecosystemmanagement.Keywords:fallarmyworm;CO2concentration;nitrogen-fixingbacteria;lifehistorycharacteristics;interactionrelationship.