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时间:2020-05-02
《不同猎物饲喂对南方小花蝽捕食量和喜好性的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第33卷第9期生态学报Vol_33.No.92013年5月ACTAECOL0GICASINICAMay,2013DOI:10.5846/stxb201202080163张昌容,郅军锐,莫利锋.不同猎物饲喂对南方小花蝽捕食量和喜好性的影响.生态学报,2013,33(9):2728-2733.ZhangCR,ZhiJR,MoLF.EffectofdifferentpreysonthepredationandpreypreferenceofOr/ussimilis.ActaEcologicaSinica,2013,33(9)2728—2733.不同猎物饲喂对南方小花蝽捕食量和喜好性的影响张昌容
2、,郅军锐’,莫利锋(1.贵州大学昆虫研究所,贵州山地农业病虫害重点实验室,贵阳550025;2.浙江大学昆虫科学研究所,杭州310029)摘要:为探讨南方小花蝽对不同猎物的捕食喜好性,室内用西花蓟马、蚕豆蚜、二斑叶螨、混合饲料(同时饲喂3种猎物)分别饲喂南方小花蝽驯化两代,研究了4种饲喂处理的南方小花蝽初孵若虫、5龄若虫和雌成虫对西花蓟马、蚕豆蚜和二斑叶螨的捕食量和喜好性。结果显示不同猎物饲喂处理驯化的南方小花蝽1龄若虫对同一种猎物的捕食量和喜好性均不存在显著差异。南方小花蝽5龄若虫和雌成虫对某种猎物的捕食量因前期取食的猎物种类不同而有显著差异。南方小花蝽5龄若虫和雌成虫均表现出对西花蓟
3、马2龄若虫的正喜好性。蚕豆蚜饲喂处理的5龄若虫和雌成虫对蚕豆蚜表现出正喜好性,除二斑叶螨饲喂处理外其余3种处理的南方小花蝽5龄若虫和雌成虫均表现出对二斑叶螨的负喜好性。以上结果表明4种饲喂驯化处理的南方小花蝽1龄若虫的喜好性不受前期取食猎物的影响,但5龄若虫和雌成虫对前期取食过的猎物的喜好性增强,存在一定的学习行为。关键词:南方小花蝽;西花蓟马;蚕豆蚜;二斑叶螨;捕食量;捕食喜好性EfectofdiferentpreysonthepredationandpreypreferenceofOriussimUisZHANGChangrong一,ZHIJunrui一,MOLifeng1ThePr
4、ovincialKeyLaboratoryforAgriculturalPestManagementofMountainousRegion,InstituteofEntomology,GuizhouUniversity,Guiyang550025,China2IustituteofInsectScience,ZhefiangUniversity,Hangzhou310029,ChinaAbstract:ThegenusOriusisagroupofgeneralpredatorsandconsumesavarietyofpestsincludingmites,thrips,aphids,
5、eggsandyounglarvaeofmothsandothersmall,soft—bodiedinsects.Itisanimportantbiologicalcontrolagentandplaysanimportantroleincontrollingmanypests.ResearchesontheeffectofdifferentpreysonthepredationandpreypreferenceofOriuscanprovidebasisforeffectiveuseoftheagentinbiologicalcontro1.Thepredationandprefer
6、enceofnewlyhatchednymph,fifthinstarnymph,femaleadultof0.similisto3speciesofpreys,i.e.,(Frankliniellaoccidentalis,4phiscraccivora,Tetranychusurticaeandtheircombinations),werestudied.Theresuhsshowedthat1instarnymphofthepredator,acclimatedbyfeedingdifferentpreys,hadnosignificantdifferenceonpredation
7、capacityandpreferencetotheprey.ComparisonofCwithnullhypothesisshowedthatthepreferenceof1instarnymphofthepredatortoF.occidentaliswaspositiveunder4preytreatmentswithnopreferencetoA.craccivora.Therewasnopreferencetourtica
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