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CURRENT STATUS OF ANTELOPES IN CHINA 总被引：1，自引：0，他引：1
UpliftingofQinghai-TibetanPlatcausincemidTertiary'caused-climaticdifferc11tia-tionbetWeenwesternandeasternChina.Ontheotherhand,thestrongmonsoonsincelatePleistoccnehasenhancedtheenvironmentalchanges,westernChinaundersuchenviron-mentalchangeshasbecomedrier'andstepPeanddesertvegetationshavedeveloPedinthesearidAsianinlandwhereasshortalpinevegeta-tionshavedeveloPedontheQinghai-TibetanPlateau.Thus'theenvironn1entalchangesinrecent3million\'earscreated\'asthabitatforUngulatespecies,particularly"… 相似文献
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Nutrias(MyocastorcolIPus)isonekindofvaluablefuranimals.Functionofitsfurkeep-ing-temperatllfeisgoodandit'sakinisdurable,soitsskinandfurarcoftenusedasthemateri-alsoffurcoatandleather.Nutrianleatnotonlytastesdeliciousanddelicate,butalsocontainshighprotein.Nutriacanbefedeasilyanditsfeedingcostislow.Therefore,itisverysuitabletoourcountry.TherehasbeennoreportaboutstiJdyontl1enutritiverequirementofnutriasinChina.ThistestemphasizesonthepropernutTitivercquircll1entofnutfiaandithasprovidedsol1lebasi… 相似文献
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利用电子计算机控制的呼吸测热装置，采用饥饿实验的方法，对育成前期雄性海狸鼠进行了能量维持需要的研究。结果表明，禁食状态下２４ｈ产热量为６２２．６４ｋＪ其中蛋白质产热量为７３．１５ｋＪ，脂肪产热量为５４９。４４ｋＪ，基础代谢率为３９６．９６ｋＪ／Ｄ．ｋｇ０．７５。 相似文献
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我们于１９９４年３～８月对安徽省女山湖７种生境繁殖鸟类及群落进行了研究。共记录到繁殖鸟类５１种，生境Ⅶ种类最多，生境Ⅰ和Ⅲ最少。群落种的多样性指数最大的为生境Ⅶ，最小的为生境Ⅲ。多样性平均数控制图可将７种生境分为３组。依据鸟类对生境利用情况和鸟类群落特征对７种生境进行评价和排序，结果是Ⅶ－Ⅵ－Ⅱ－Ⅳ－Ⅴ－Ⅰ－Ⅲ。 相似文献
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Iare0DUrnONForagingstrategyofbirdsisan~rtancontentinavianbehaviorecol0gy.Jtmainlycontains3asPeCtSt(l)ForaginghabitatseIechon-wheretoforape,(2)Foodselechon-whatwillbeforaged,whichdepedsonPreyssPeCies,abundance,spatialdistribution'movementtw,seasonalfluctUahon,birdslifestoryPeriodandmtorPecificcontestandsoon;(3)Foraginbehaviortws-howtoforape,includin'searching,handlingandtimedistribuhon.Ingeneral,birdshave0ptimalf0ragingstrategy.ForapingbehaviorofshriksisverycomplicatedduringbreedingPeri… 相似文献
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探讨了育成前期雄性海狸鼠饲粮蛋白质适宜水平。试验分四组，饲粮的能量和蛋白质分别为：１６２８９．１ｋＪ／ｋｇ，１４．４６％；１６４７６。９ｋＪ／ｋｇ，１８．１３％；１６７３４．２ｋＪ／ｋｇ，２０．６２％和１６３３４ｋＪ／ｋｇ，２４．１０％。对海狸鼠的体重，日粮蛋白质消化率，能量消化率，蛋白质沉积率进行了测定，结果为饲粮可消化蛋白质适宜水平为１５％￣１７％，每日可消化蛋白质与体重，日增重回归关系为：Ｄ 相似文献
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探讨育成前期海狸鼠饲粮中能量的适宜水平。实验分四组，饲粮的消化能和消化蛋白质水平分别为１２３３０．５ｋＪ／ｋｇ、１５．７０％；１３０６１．８ｋＪ／ｋｇ、１５．２９％；１４２１０．０ｋＪ／ｋｇ、１５．１３％；１４８１８．２ｋＪ／ｋｇ、１５．０８％。实验结果表明，饲粮消化能水平为１４２１０￣１４８１８ｋＪ／ｋｇ，日消化能１５６３￣１６６３ｋＪ时，海狸鼠增重最好。 相似文献
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INTRODUCTIONKoreanpine(Pinuskoraiensis)com-'monlyoccursinmixtUrewithsomehardwoodsPeCiesand,natUrally,becomesold-growth"forestcalledmixedbroad-leaved/Koreanpineforest.ThenatUralforestsmainlydistributedinnortheastChina.TheconesofKoreanpinearelarge,measuringupto2ocminsize.The....,iscalescannotopenuptoletthebig,winglessseedsoutwhentheconesbecomingdry.UndernatUralcondition,theseedsdon'tgerminateuntil2winterslater,buttheseedsinconesusuallybecomerottenowingtofungusorareforagedbysmallrodentsa… 相似文献
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lntroducti0nMan}'pIantshavFt1eshytYLlitsinALItumnil1teInperatezone.Thesefruit3providefoodtbrmanytYugivorouSbirds.BirdsgetnutritiontYomthetYuits,anddispersetheseedsofthesepIantsatthesametime.Manyre-searchesonthistopicaretinishedinMediterraneanScrubIandsand… 相似文献
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INTRODUruONThedata-basetechnolOgyisrarelyusedinStudyandmanagementofChinesewildlife.Nowdata-basetechnolOgyisusedinChinesebirdtaxonomicalsysteminordertodevelopcomputeruseofChinesewildlifen1anagen1ent.ComPuteriZedbirdtaxonolnicalSyste111isqnickerandmoreaccuratethanmanualone.AndstUdsnscanlearnbirdtaxonomicfeatUre,ChinesebirddistribuhonandecolOgicalhabi-tos.aremooManualbirdtaxononllcsystemhasbeenreIahveIystableandPedect.Thebirdtaxo-nonicsysten1wuchisusednowisthebasisofthiscomPut6rsystem.… 相似文献