动物学报�54(3):555-560,2008ActaZoologicaSinica�������2007-09-17收稿,2007-12-05接受�*霍英东教育基金会高等院校青年教师基金项目(No�101025)、北京林业大学研究生自选课题资助基金(No�06jj003)、�十一五�科技支撑计划课题�林业重大生物灾害防控新技术产业化与示范�(No�2006BADO8A12)、长江学者和创新团队发展计划(No�PCSIRT0607)资助[ThisresearchwasfundedbythegrantsfromFokYingTongEducationFoundationforYongTeachersinCollegesandUniversities(No�101025),GraduateSel-fDecisionProjectofBJFU(No�06jj003),NationalScience-TechnologySupportofChinaduringthe11thFive-YearPlanPeriod(No�2006BADO8A12)andProgramforChangjiangScholarsandInnovativeResearchTeaminUniversity(No�PCSIRT0607)]**通讯作者(Correspondingauthor)��E-mail:wenjb@bjfu�edu�cn��2008动物学报ActaZoologicaSinica冬季大斑啄木鸟对光肩星天牛的选择性捕食*万�涛1�矫振彪1�温俊宝1**�胡加付1�骆有庆1�付林巨2�张林生21.北京林业大学林学院省部共建森林培育与保护教育部重点实验室,北京1000832.乌拉特前旗森林病虫害防治检疫站,内蒙古巴彦淖尔市,014400SelectivepredationbythegreatspottedwoodpeckerPicoidesmajorontheAsianlonghornedbeetleAnoplophoraglabripennisinwinter*WANTao1,JIAOZhen-Biao1,WENJun-Bao1**,HUJia-Fu1,LUOYou-Qing1,FULin-Ju2,ZHANGLin-Sheng21.KeyLaboratoryforSilvicultureandConservation,MinistryofEducation,BeijingForestryUniversity,Beijing�100083,China2.ForestDiseaseandPestControlandQuarantineStationofWulateQianqiCounty,BayannaoerCity�014400,InnerMongolia,ChinaAbstract�AsoneofthenaturalpredatorsofAsianlonghornedbeetlesAnoplophoraglabripennis(Motsch.)(Coleoptera:Cerambycidae),thegreatspottedwoodpeckerPicoidesmajor(Linnaeus)isendemictoWulateQianqiCountyandiswidelydistributedintheartificialshelter-forestoftheInnerMongolianAutonomousRegion.FromDecember2006toJanuary2007,therateofpredationonA�glabripennisbyP�majorwasinvestigatedinWulateQianqiCountyin27fieldplots,whereP�majorandA�glabripenniscoexistandinwhichtreesweredamagedbyA�glabripennis.Inadditiontothefieldstudies,24hosttreesofA�glabripenniswerecutdownforfurtherexamination.DataonthequantitiesofA�glabripennis,includingbeetleswhichwerepeckedbyP�major,werecollectedfromeachfieldplotandeverycu-tdowntree.ThedatashowedthatthepeckingrateofP�majorforagingforA�glabripenniswas14�91%inlowdamagedplots,19�86%inmediumdamagedplotsand13�93%inthehighdamagedplots,respectively.TherateofpeckedA�glabripennisfoundabove6meterswas27�25%.ThatwasnoticeablyhigherthantherateofpeckedA�glabripennisfoundunder6metersonthetrees,(16�18%).ResultsalsoshowedthatP�majorpreferredoldA�glabripennislarvaeoveryounglarvaeinboththedamagedplotsandatgreaterheights.TheseresultssuggestthatP�majorforagedforA�glabripennisselectively:i)exhibitingahighselectivityinthemediumdamagedplots;ii)preferentiallyselectingtheappropriatedamagedheights;iii)preferentiallyselectingolderlarvae,whileoccasionallyselectingafewyounglarvae.Finally,thereasonsofforagingselectivityarediscussedinrelationtoeconomicfactorsandmethods;suchascos-tbenefitanalysis,trade-offofforagingandrisk,andpredationriskanalysis,basedonoptimalforagingtheory[ActaZoologicaSinica54(3):555-560,2008].Keywords�Greatspottedwoodpecker,Picoidesmajor,Asianlonghornedbeetle,Anoplophoraglabripennis,Peckingrate,Optimalforagingtheory,Foragingselectivity关键词�大斑啄木鸟�光肩星天牛�啄食率�最适觅食理论�觅食选择��20世纪80年代以来,光肩星天牛(Anoplophoraglabripennis)在我国...
