通河林區(qū)黃鼬冬季被毛形態(tài)結(jié)構(gòu)功能適應(yīng)性研究.pdf

1、UniversityCode：10225RegisterCode：080435DissertationfortheDegreeofMasterAStudyontheFunctionalAdaptabilityoftheMorphologicalStructureofWeasel’S(Mustelasibirica)HairCandidate：Supervisor：AssociateSupervisor：AcademicDegreeApp

2、liedfor：Speciality：Dateof0ralExamination：University：SunChanghongProfZhangWeiMasterTheRearingofSpecial—TypeEconomicAnimalsJune，2008NortheastForestryUniversityAbstractInthispapertheresearchmaterialwasfurfrom30yellowweasels

3、(Mustelasibirica)whichweresampledfromtongkoForestFarmofTongheinXiaoxinganMountainsinwinter15malesand15femalerespectivelyTheareaoftheweaselsfurweremeasured，andfourtypesofhairweresampledfromdifferentpartsoftheweaselincludi

4、nghead，back，bellybuttocks，middletail，upperpartofforelegandhindleg，lowerpartofforelegandhindleg，5hairsofeachtypeateverypart，meanwhile，5upperhairsweresampledfromforepawandhindpawrespectivelyAnthesampledhairsweremadeintocut

5、icularimpressionorganicglassandmedullapatternslideAccordingtothestudyguidelineofstructure—function。adaptationcombination，alltypesofhairfromallthesampledpartsweremeasuredforindexesincludingthelengthofhairmedullaandnonmedu

6、llatip，thediameterofhairandmedulla，thelengthofdifferenttypesofscales，additionallypinhairfromthebackandtheupperhairfrompawsweremeasuredforthediameterofhairrootandthelengthofhairfolliclebyusingscanningelectronmicroscopepho

7、tographing，biologicalmicroscopeanditssupportingsoftwareforphotoprocessingandmeasuringThentheproportionofmedullalengthtohairlength，lengthofnon‘medullatiptohairlength，medulladiametertohairdiameterandlengthofdifferenttypeso

8、fscalewerecalculatedrespectivelyByusingsoftwareSPSS，statisticalanalysisforindexesabovewerecarriedoutandtheconclusionswereasfollowing：(1)thebodysizeandthegrowthmatchoffourhairtypesisofgreatsignificancefortheweasel’Sadapta

9、bility(2)Onthepreconditionthatenhancingthefunctionforheatpreservationandmechanicalinjuryresistance，theindexesofSiberianweasel’Shairhasanobviouslyfunctionaldifferentiationaccordingtothedifferentfunctionfocusofdifferentpar

10、tsofthebody(3)ThespecialstructureofupperhairsfromweaselspawswherethemedullaryindexislowerthehairdiameteriSthickerandthelengthofhairfollicleislonger，isofgreatsignificanceformechanicalinjuryresistance(4)Imbricatescalesofup

11、perhairsfromtheendofweasel’SlimbarestrongerthanthosefromthemainbodySOthatenhancethefunctionofmechanicalinjuryresistanceforthehairfibersf5、)Fortheweasel，functionaldifferentiationoftheseindexesiSnotisolated；thefunctionofha

12、irsfromsamepartisconsistent(6)ThecharacteristicofSiberianweasel’Shairsandbodyisofgreatsignificancefortheadaptationtoenvironment，whichisaresultofnaturalselectionduringthelongtermevolutionaryprocessKeywordsSiberianweasel，f