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时间:2020-06-04
《斑痣悬茧蜂产卵器刺扎寄主经历对刺探行为的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、应用昆虫学报ChineseJournalofAppliedEntomology2014,51(3):781-786.DOI:10.7679~.issn.2095—1353.2014.093斑痣悬茧蜂产卵器刺扎寄主经历对刺探行为的影响水冯素芳孟玲李保平(南京农业大学,农业部病虫害监测与防控重点开放实验室,南京210095)摘要【目的】本文旨在评价斑痣悬茧蜂Meteoruspulchricornis(Wesmae1)刺扎寄主的行为机理。【方法】采用非选择性试验于室内观察了刺扎次序对其产卵决策的影响;并采用双选试验
2、观察了具有刺扎不同寄主(健康的、自身刺扎过的、他蜂刺扎过的寄主)的经历如何影响寄生蜂对自身刺扎与他蜂刺扎过的寄主的选择。【结果】非选择性试验结果表明:当面对健康寄主时,寄生蜂刺扎次序对刺扎耗时在5%概率水平上没有显著影响,但在10%概率水平具有显著影响;刺扎次序对寄生率没有显著影响,第1至5次刺扎的寄生率依次为63.3%、46.7%、76.7%、70.0%和66.7%。双选试验结果发现,刺扎不同寄主的经历处理对刺扎寄主选择性没有显著影响fP>O.05),具有刺扎健康的、自身刺扎过的和他蜂刺扎过的寄主的经历使寄
3、生蜂选择被他蜂刺扎过的寄主的比例分别为65.5%、44.8%和50.0%。但刺扎经历显著影响刺扎耗时(P<0.05),具有1次刺扎健康寄主经历的蜂的刺扎耗时显著短(2倍)于具有刺扎自身刺扎过的寄主经历的蜂,但与具有刺扎他蜂刺扎过的寄主经历的蜂没有显著差异(P>0.05o【结论】学习在斑痣悬茧蜂刺扎探测寄主行为的作用很小。关键词寄主搜寻,寄主接受,学习,产卵器刺扎,过寄生OvipositordrillingbehaviorsandhostselectioninMeteoruspulchricornisWesma
4、el(Hymenoptera:Braconidae)FENGSu—FangMENGLingLIBao.Ping(CollegeofPlantProtection,KeyLaboratoryofIntegratedManagementofCropDiseasesandPestsofMinistryofEducation,NanjingAgriculturalUniversity,N柚jing210095,China)Abstract【ObjectiveslTogaininsightsintothemechani
5、smsofovipositordrillingbehaviorofMeteoruspulchricornis(Wesmae1)(Hymenoptera:Braconidae).【MethodsJNon—choicetrailswereperformedtomeasuretheinfluenceofovipositionsequenceondecisionswithregardtoSpodopteralitura(Lepidoptera:Noctuidae)larvae;dual—choicetrailswer
6、econductedtodetecteffectsofpriorexperienceonovipositionpreferencesbetweenself-andconspecific-parasitizedhosts.fResultslThenon—choicetrialsdidnotfindsignificantefectsofovipositionsequenceonovipositiondurationatthe5%leve1.butdidatthe10%leve1.Ovipositionsequen
7、cedidnothavesignificantefectsonparasitizationrate,whichwas63-3%,46.7%,76.7%,70.0%and66.7%fromthefirsttofifthhost.respectively.Thedual·choicetrialsdidnotfindsignificantefectsofovipositionexperienceonovipositionpreferencesbetweenself-andconspeciflc-parasitize
8、dhostlarvae(Jp>0.05);percentagesofaaackingconspecific·parasitizedhostswere65.5%,44.8%,and50.O%forparasitoidswiththeexperienceofovipositiononhealthy,self-andconspecific-parasitizedhosts,respectively.Ovi
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