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1、動物學(xué)研究2013,Jun.34(3):160?165CN53-1040/QISSN0254-5853ZoologicalResearchDOI:10.11813/j.issn.0254-5853.2013.3.0160高寒草甸常見雀形目鳥類共存機(jī)制的生態(tài)形態(tài)學(xué)解釋1,211,21,211,*劉力華,陳曉澄,褚暉,孫嘉辰,張曉愛,趙亮1.中國科學(xué)院西北高原生物研究所高原生物適應(yīng)與進(jìn)化重點實驗室,青海西寧810001;2.中國科學(xué)院大學(xué),北京100049摘要:生態(tài)形態(tài)學(xué)特征是生物在選擇壓力下長期進(jìn)化的結(jié)果,對生物的生存和繁衍具
2、重要影響。為使種間競爭最小化,同質(zhì)環(huán)境中關(guān)系密切的物種一般具有不同的生態(tài)形態(tài)學(xué)特征,以實現(xiàn)對有限資源的分割。1983—2012年,對高寒草甸生態(tài)系統(tǒng)中常見的9種雀形目鳥類的生態(tài)形態(tài)學(xué)特征所進(jìn)行的研究結(jié)果表明:9種雀形目鳥類的各個生態(tài)形態(tài)學(xué)特征指標(biāo)均具有顯著差異;~92.0%的個體被正確歸類,除小云雀(Eremophilaalpestris,79.2%)外,其余各物種判別正確率均較高(84.5%~100%),9個物種被分成5個集團(tuán)(guild)。各集團(tuán)獨(dú)特的生態(tài)形態(tài)學(xué)特征與集團(tuán)內(nèi)物種的棲息地環(huán)境和取食行為相關(guān),最終解釋了各個物
3、種如何在高寒草甸生態(tài)系統(tǒng)中實現(xiàn)共存。關(guān)鍵詞:高寒草甸;雀形目鳥類;生態(tài)形態(tài)學(xué);集團(tuán);共存+中圖分類號:Q143;Q959.739文獻(xiàn)標(biāo)志碼:A文章編號:0254-5853-(2013)03-0160-06Ecomorphologicalexplanationsofpasserinescoexistenceinalpinemeadow1,211,21,21Li-HuaLIU,Xiao-ChengCHEN,HuiCHU,Jia-ChenSUN,Xiao-AiZHANG,1,*LiangZHAO1.KeyLaboratoryofA
4、daptationandEvolutionofPlateauBiota,NorthwestInstituteofPlateauBiology,ChineseAcademyofSciences,Xining810001,China2.UniversityofChineseAcademyofSciences,Beijing100049,ChinaAbstract:Speciesecomorphologicalcharacteristicsaretheevolutionaryresultsofselectivepressurest
5、hathaveenabledindividualsofagivenspeciestosurviveandreproduce.Closelyrelatedspeciesco-occurringinhomogeneousenvironmentsshouldbemorphologicallydistincttopartitionlimitedresources,soastominimizeinterspecificcompetition.From1983to2012,westudiedtheecomorphologicalchar
6、acteristicsofninepasserinespeciesinalpinemeadow.Resultsshowedsixecomorphologicalcharacteristicsoftheninespeciesweresignificantlydifferent.Approximately,92.0%ofsampleswerecorrectlyclassifiedandthecorrectratesrangedfrom84.5%to100.0%,exceptfortheOrientalSkylark(Eremop
7、hilaalpestris),whichwas79.2%.Accordingly,theninespeciesweredividedintofiveguildsbasedontheircharacteristics.Resultsindicatedthatthenichesofallspeciesweredivergent,andtheecomorphologicalcharacteristicsofthespecificspeciesineachguildwererelatedtotheirhabitatsandforag
8、ingbehaviors.Theseresultsalsoexplainedthepossiblemechanismsofdifferentspeciescoexistenceinalpinemeadow.Keywords:Alpinemeadow;Passerines;Ecomorpho