河南济源太行隆肛蛙(feirana+taihangnicus)种群的骨龄学-研究

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1、8-year·old，butincreasingslowly．Conclusions：1)OurresultsdemonstratethatskeletochronologyisallappropriatetechniqueforagedeterminationinFeiranataihangnicus；2)Lowtemperaturereducesphysiologicalrates，andhencedecreasedgrowthanddevelopmentrates．Thecoldstreamconditionisarestrictedfactorofgrowthanddev

2、elopmentofthejuveniles，SO，thetadpoleswouldhavetobeforcedoverwinterfortwoyears．AnditsuggestedthatEtaihangnicuswouldtake3yearsforlarvaetofinishmetamorphosis．3)EtaihangnicusoccurrenceathJ曲latitudesandlowtemperatureconditions．Theageatmaturityisprolongedandthelongevityisincreased．Asreproductivemat

3、urityisdependentonbodysize，speciesorindividualswitllfastergrowthrateswillreachtheminimumsizerequiredforreproductionsoonerthanthosewimslowergrowthratesand，thus，willbeabletobeginbreedingatayoungerage．Thebenefitsofdelayedreproductionarelessobviousandgenerallyrelatetoadvantagesassociated谢mlargebo

4、dysize．Asgrowthratesofectothermsdecreasegreatlyaftertheattainmentofsexualmaturity,organismsthatdelayreproductionareabletoachievelargerbodysizesthanprecociousindividuals．ThelargerboaysizeresultsnotonlyinincreasedSUCCESSatholdingbreedingterritories，butalsoingreatersurvivorshipofparentsandproduc

5、tionoflargerclutchesand／orlargeroffspringthatmayhavehighersurvivalratesthansmalleroffspring．BodylengthoffemalesofEtaihangnicusandfecundityhasastronglypositivecorrelation．Keywords：Skeletochronology,LAGs，Growthcurve，Feiranataihangnicus．IVr■f^和h簟目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．IABSTRACT．．．．．．．．．．．．．．．

6、．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．IIl目录⋯一⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯V第一章前言⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1种群年龄结构研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．2骨龄学研究概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．3两栖动物长骨的生长与发育⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．21．3．1早期骨的分化与髓腔的形成⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．31．3．2骨骺的分化与发育⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．51．3．3骨外膜骨的生长⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯91．3．4骨的改建、骨内膜骨的形成和骨外膜骨的重吸收⋯⋯⋯⋯⋯⋯．111．3．5长骨生长的模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯161．4生长停滞线(LAG)数量统计所遇到的问题和解决办法⋯⋯⋯⋯⋯．．191．5太行隆肛蛙(Feiranataihangnicus)的生物学⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯22’1．5．1太行隆肛蛙的分类地位及地理分布⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯221．5．2太行隆肛蛙的生态习性及生活史⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯221．6研究目的和意义⋯