濒危动物英文.ppt

Thestatusofendangeredanimals,Accordingtothesurvey,thereare75speciesdieouteverydayintheworld.Thatistosay,attheaverageof3speciesvanishanhour.Inchina,thepopulationofendangeredanimalsisveryrarely,andthenumberofendangeredanimalsisdecreasingrightnow.Duetohumanexpansion,manyanimalshaventhometolivein.,Thestatusof12endangeredanimalsintheworld,onlyproducedinthemiddleandlowerYangtzeRiverChinese,Thebaijiisawarmbloodedanimal,knownasthewaterofthegiantpanda.TotwentiethCentury,duetovariousreasons,thepopulationdecline,estimatedin2002hasbeenlessthan50head,itnotonlywereclassifiedasanationalprotectedwildanimal,isoneoftheworlds12mostendangeredanimal.InAugust8,2007,theRoyalSocietyjournalBiologicalletterpublishedinthereport,formallyannouncedthebaijifunctionalextinction.,白鳍豚（LipotesvexilliferMiller）,Sumatrantigeristhesmallestsubspeciesinalltigerspecies.OnlydistributedinIndonesiasSumatraisland(印度尼西亚苏门答腊岛).Thehabitatoftheforestfromtheplainstothemountains.TheonlyremainingwildSumatrantigersareabout400-500,mostlyfivenationalparksinIndonesiaisland.,苏门答腊虎TheSumatrantiger,WhiteRhinoceros，Membersofthespeciesonceinhabitedrainforests,swamps,andcloudforestsinIndia,Bhutan（不丹）,Bangladesh（孟加拉共和国）,Myanmar（缅甸）,Laos,Thailand,Malaysia（马来西亚）,Indonesia,andChina。Theirnumbersaredifficulttodeterminebecausetheyaresolitary（独立的）animalsthatarewidelyscatteredacrosstheirrange,buttheyareestimatedtonumberfewerthan275.SurvivalofthePeninsularMalaysia（马来半岛）populationisindoubt.Totalnumberstodaymaybeaslowas200.,北部白犀牛(Sumatranrhinoceros),TheOrinococrocodileisacriticallyendangeredcrocodile.ItspopulationisverysmallanditcanonlybefoundinfreshwaterenvironmentsinColombia(哥伦比亚)andVenezuela（委内瑞拉）,inparticulartheOrinocoRiveranditstributaries.Extensivelyhuntedfortheirskinsinthe19thand20thcenturies,thisspeciesisoneofthemostcriticallyendangeredspeciesofcrocodiles.Maleshavebeenreportedupto6.6minthepast,butsuchsizesdonotexisttoday.,奥里诺科鳄鱼TheOrinococrocodile,Themouselemursarenocturnal（夜间活动的）lemursofthegenusMicrocebus（倭狐猴属）.LemursandMouseLemurswereannouncedbytheIUCN（国际自然和自然资源保护联合会）asthemostendangeredofallvertebrates.Thereareabout24mouselemurspeciesidentifiedby2016.Therewereonly2knownmouselemurspeciesby1992.Itwasestimatedthatthe24mouselemurspeciesevolvedfromacommonancestor10millionyearsago.Evolutionofmouselemursisanexampleforadaptiveradiation.,小嘴狐猴(Mouselemur),Kempsridleyseaturtleistherarestspeciesofseaturtleandiscriticallyendangered.ItisoneoftwolivingspeciesinthegenusLepidochely.italsoisthewholeworld12mostendangeredanimalonlynumberintothegrowthtrendofanimal.,兰.坎皮海龟(L.Kempsridleyseaturtle),MonksealsareearlesssealsofthetribeMonachini.Theyaretheonlyearlesssealsfoundintropicalclimates.Therearetwogeneraofmonkseals,MonachusandNeomonachus,comprisingthreespecies:theMediterranean(地中海)monkseal,Monachusmonachus;theHawaiian（夏威夷的）monkseal,Neomonachustropicalis;andtheCaribbean（加勒比海)monkseal,Neomonachustropicalis,whichbecameextinctinthe20thcentury.Thetwosurvivingspeciesarenowextremelyrareandinimminentdangerofextinction.,僧海豹(monachus-monachusormonkseal),奥瑞纳克鳄鱼(OrinocoCrocodile）,ThiskindoflifeinVenezuelas（委内瑞拉）Orinococrocodile.ItisthelargestAmericancrocodile,isararityintheanimalinVenezuela.OvertheyearstheVenezuelanunitsconcernedtotakemeasurestoprotectendangeredtheOrinococrocodile,andhaveachievedsuccess.TheremainingwildOrinococrocodile250-700atpresent.,泰国猪鼻蝙蝠(KittisHog-nosedBat),TheyliveinThailand,livingintheteak（柚木）forestandbambooforestnear.Duetotheextensivedeforestation(砍伐森林),leadingtotheirlivingenvironmentisdestroyed,andnowthesurvivalofporcinenasalbat（猪鼻蝙蝠）willnotmorethan200.,夏威夷蜗牛(genusAchatinella),Becauseofthedamagetotheenvironment,causetheygraduallylosttheiroriginalhabitat.Besidestheyarealsosubjecttootherimportedanimalthreats,suchasmice,carnivorous(肉食性的)snails,Africalargesnails.Anditbrightlycoloredshell,leadtomanycollectorslikesnailshellpeopleatanycosttohaveit.Now,theyextremelyrareandinimminentdangerofextinction.,斯比克斯鹦鹉Cyanopsittaspixii,Bytheendof2000,“Bixparrothasbeenextinctinthewild,thepossessionofonlyabout60,itisapitythatthe60mostarebrothersandsisters,genelibraryisstillneededtoexpand,orwillbecausecloserelativesproblemshavecausedextinctionoflesions（病变）.Thisbirdsfutureremainsgrim（残忍的）.,.微型猪(pigmyhog),Theworldssmallestpig,livemainlyinthenortheastofIndia.60cminlength,about25cmhigh,adultpigsunder10kg.OnceintheHimalaya（喜马拉雅）Rangeareaexists,nowonlyA-SunoftheIndia（印度的阿桑地区）regionh