pieceboasting

boasting  时间:2021-05-09  阅读:()
"Itisinterestingtocontemplateanentangledbank,clothedwithmanyplantsofmanykinds,withbirdssingingonthebushes,withvariousinsectsflittingabout,andwithwormscrawlingthroughthedampearth.
"SoCharlesDarwinbeginstheconcludingparagraphofOntheOriginofSpecies,published150yearsagonextweek.
Byinvokingthisgentleimage,Darwinsoughttoemphasizehow"endlessformsmostbeautifulandmostwonderful"haveallevolvedthroughtheprocessofnaturalselection.
Werehealivetoday,Darwinwouldhavecausetobelessrhapsodic.
Themodernversionofhisbankmightwellbedominatedbyinvasiveshrubs,havingbeendenudedofmostnativeplantsbydeforestation,andnearbystreamswouldprobablybepollutedandfilledwithsedimentfromexcessrun-off.
Itishardlynewsthattherichpageantoflife,whichinspiredDarwinandhiswork,isnowsuffering.
AccordingtodatareleasedthismonthbytheInter-nationalUnionforConservationofNatureinitsRedListofThreatenedSpe-cies,one-fifthofmammalsandnearlyone-thirdofamphibiansarethreatenedwithextinction,andthesituationisnobetteramongplants:almostone-thirdofknowngymnosperms,thegroupthatincludesconifers,arethreatened.
Yetdespiteallthewarningsfromscientistsandenvironmentalists,nationshavedonelittlemorethanfretovertheprob-lem.
Althoughalmost200countrieshavepledgedthroughtheConventiononBio-logicalDiversitytosignificantlyreducetherateofbiodiversitylossbynextyear,leadersofthateffortacknowledgenotonlythattheworldwillcomeupshortofthistarget,butalsothatitwasbasicallyunachievablefromthestartandthatitrepresentedmoreofapoliticalstatement(seepage263).
Thisweek,Natureendsitsyear-longcelebrationofDarwin(www.
nature.
com/darwin)byexaminingsomeofthemostpressingissuesconcerningthelossofbiodiversity,aswellaswaystoaddresstheproblem.
Thefactthatupperlevelsofgovernmentarebeginningtofocustheirattentiononthebiodiversitycrisisgivessomecauseforoptimism.
Forexample,theUnitedNationsGeneralAssemblyhasnamed2010astheInternationalYearofBiodiversity,withameetingscheduledinNewYorknextSeptemberatwhichheadsofstatewilltakeuptheissue.
Thefollowingmonth,partiestothebiodiversityconventionwillgatherinNagoya,Japan,todevelopspe-cificandverifiablebiodiversitytargetsfornationsoverthecomingdecades.
Thesemeetingsgivecountriesanincentivetostartprotectingvitalecosystemsduringthenext11monthssothattheycanheadtotheNagoyasummitboastingofsuccess.
Thereisgrowingrecognitionthatdiverseecosystemscanprovidesub-stantialeconomicbenefits—aconceptknownasecosystemservices—whichhasstrengthenedsupportforconserva-tioninthebusinessandpoliticalcom-munities.
TheNewsFeatureonpage270profilesecologistGretchenDailyofStanfordUniversityinPaloAlto,Cali-fornia,anadvocateofthisconceptwhohelpedittoemergeasamajorideainconservation.
Anotherarticle(page266)showsthisconceptinactioninBrazil,whereithashelpedtopreservetheremainingpatchesofthespecies-richAtlanticforest.
AndinanOpinionpiece(page277),theleaderofaninter-nationalstudy,knownastheEconomicsofEcosystemsandBiodiversity(TEEB)project,arguesthatgovernmentsmustputtaxesandbenefitsinplacetoprotectnature's'publicgoods'.
Justlastweek,theTEEBprojectannouncedinitialresultssuggestingthatinvestmentsinconserva-tioncanreapeconomicbenefitsthatfarexceedtheinitialoutlay.
ThesituationinBrazilisagoodexam-ple.
Preservingpatchesofforesthasnotonlyhelpedthegoldenliontamarintosurvive,buthasalsohelpedtoprovidecleanwater,floodcontrolandothereco-nomicbenefitstonearbycommunities.
These'win–win'situationsarenaturalstartingpointsforconservationeffortsbecausetheyareeasilysoldtopoliticiansandotherstakeholders.
ClimatechangewillplacenewstressesonalreadyweakenedecosystemsbutitcanalsopresentpoliticalandeconomicTheentangledbankunravelsThisthirdspecialissueinNature'syear-longcelebrationofCharlesDarwinfocusesonthedirechallengestoEarth'sbiodiversity—andfindssomereasonforhope.
251www.
nature.
com/natureVol462|Issueno.
7271|19November2009BiodiversityEDITORIAL251TheentangledbankunravelsNEWS263EffortstosustainbiodiversityfallshortNatashaGilbertNEWSFEATURES266Biodiversity'sbrightspotGeneRusso270PuttingapriceonnatureEmmaMarris272OntheoriginofbarcodesNickLaneOPINION277CostingtheEarthPavanSukhdev278AforcetofightglobalwarmingWillR.
Turner,MichaelOppenheimer&DavidS.
Wilcove280LetthelocalsleadRobertJ.
Smith282AcalltothecustodiansofdeeptimeDouglasErwinBOOKS&ARTS287LogoflifebeneaththewavesMarkSchropeForpodcastandmoreonlineextrasseewww.
nature.
com/darwin2009MacmillanPublishersLimited.
Allrightsreservedopportunities.
Oneexampleisastrategyknownasreducingemissionsfromdeforestationandforestdegradation(REDD).
Accordingtoesti-matesbytheIntergovernmentalPanelonClimateChange,theclear-ingofforestsaccountsforapproximatelyone-fifthofgreenhouse-gasemissionsbyhumans.
Thus,stoppingdeforestationcouldbearelativelycheapandeffectivewaytoreduceemissionsandslowtherateofglobalwarming.
Atthesametime,argueWillTurnerandhiscolleaguesinanOpinionpieceonpage278,effortstopreservenaturalecosystemscanhelptoamelioratesomeoftheeffectsofclimatechange.
Theinterna-tionalclimatetreatycurrentlyundernegotiationislikelytoincludeaREDDmechanismthatwouldprovidefundstotropicalcountriestosavetheirforests,amovethatwouldhelptomitigateclimatechangeandsustainbiodiversity.
Althoughecosystemdegradationlookssettoincreaseinthefutureasaresultofclimatechange,thebiggestthreattobiodiversitytodayistherapiddisappearanceofhabitats.
Atpresent,onlyaround14%oflandsurfaceandlessthan6%ofterritorialseasareprotectedworld-wide.
Yetsuchareashelptosupportnearlyone-sixthoftheworld'spopulation,accordingtotheTEEBstudy.
Asnationslookbeyondthelikelyfailureofthe2010biodiversitytarget,theyshouldcommittoplacingmoreareasunderprotection.
Itwillbecrucialtoselectvaluablesitesthatharbourthespeciesthataremostthreatened.
Thewealthiestsectorsofsocietytendtobethemostremovedfromnature,whereastheworld'spoorestpeoplerelyheavilyonthefruitsofdiverseecosystems.
Asaresult,caremustbetakentoensurethatconserva-tioninitiativesdonotcomeattheexpenseofpeople,particularlyindigenouscommunitiesthatcanbeindirectlyharmedwhenlandissuddenlysetaside.
AccessdeniedInformation-sharingresourcesareessentialtobiologistsanddeserveinternationalsupport.
Everyweekday,thousandsofresearchersaroundtheworldaccesstheArabidopsisInformationResource(TAIR),whichcontainsthemostreliableandup-to-dategenomicinformationavailableonthemostwidelyusedmodelorganismintheplantkingdom.
Butnow,tothoseusers'horror,TAIRfacescollapse:theUSNationalScienceFoundation(NSF)isphasingoutfundingafter10yearsasthedataresource'ssolesupporter(seepage258).
TAIR'splightisemblematicofabroadercrisisfacingmanyoftheworld'sbiologicaldatabasesandrepositories.
Researchfundingagen-ciesrecognizethatsuchinfrastructuresarecrucialtotheongoingconductofscience,yetfewarewillingtofinancethemindefinitely.
Suchagenciestendtosupporttheseresourcesduringthedevelop-mentphase,butthenexpectthemtofindsustainablefundingelse-where.
Unfortunately,thatisnoteasy.
Otherfundingagenciesarenomorelikelytoprovidelong-termsupportthantheagencythatlaunchedtheresourceinthefirstplace.
Moreover,anygovernmentagency'slong-termplansarevulnerabletoshort-termpoliticalexpediency.
Witness,forexample,Japan,wherethenewgovernmenthasslashedthebudgetoftheRIKENBioResourceCentrebyone-third(seepage258).
Privatefirmsareequallypoorbets.
Advertisingandsponsorshipareunlikelytobringinenoughmoneytopaytheexpertsneededtomaintainsuchresources.
AndthesuperficiallyplausibleideaofchargingsubscriptionfeesiseffectivelyunworkableforfacilitiessuchasTAIR,becausetheproducersandconsumersofdataareessentiallythesamecommunity.
Scientistsprovidedataandresourcesforfree,becausesharingbenefitseveryone.
However,theywouldbeconsid-erablylesslikelytodepositthefruitsoftheirlabourifthissynergywasremovedfromtheequation.
Subscription-baseddatabasesandresourceswouldthenenteradownwardspiral,becominglessandlesscompleteandsolessandlessvaluable.
Theproblemisacuteevenformodestresources.
TwoexamplesarethekidneydatabaseEuReGeneandthemouse-embryodatabaseEURExpress,bothofwhichwerelaunchedwithfundsfromtheEuro-peanCommissionthathaverunoutinrecentmonths.
Thedatabasesarecurrentlybeingmaintainedonahand-to-mouthbasis,andthescientistswhobuiltthemdon'tknowwheretoturnformaintenancemoney.
YettheEuropeanCommission'sinvestmentwillhavebeenwastedifthedatabasesdisappear.
Itistimeforawholenewapproach.
Front-linebiologycannotfunctionwithouttheseresources,sosolutionsmustbefoundatbothnationalandinternationallevels.
Governmentsmustensurethatatleastoneoftheirnationalfund-ingagencieshasmoneyspecificallysetasideforthelong-termsup-portofbioresourceinfrastructures.
AgoodmodeltoemulatewouldbetheUnitedKingdom'sBiotechnologyandBiologicalSciencesResearchCoun-cil,whichallowsdatabasesandothersuchresourcestoapplyforring-fencedfunding,savingthemfromhavingtocompetewithhypothesis-drivengrants,whicharetheagencies'mainstay.
Butactionisalsoneededontheinternationalfront.
Thesharingofbioresourcesdoesnotandshouldnotstopatnationalborders.
Forexample,onlyaboutaquarterofTAIRusersarebasedintheUnitedStates.
Chinaisthesecondbiggestuserataround12%,fol-lowedbyJapanataround10%.
Thisisnotatypical.
Yetitisdifficultforasinglenationalagencytojustifymaintainingaresourcefortherestoftheworld.
Whatisrequiredisaninternationalcost-sharingorganizationthatcouldfundcompetitivelyselectedinfrastructures,largeandsmall.
TheEuropeanCommissionhasmadeagoodstartwithprojectssuchasELIXIR(EuropeanLifeSciencesInfrastructureforBiologicalInformation),whichisstudyingwaysofsteeringnationalagenciestowardsthejointfundingofbioresources.
Aglobal,ELIXIR-likeini-tiativeisurgentlyneeded,runperhapsbyaninternational,relativelyunbureaucraticorganizationsuchastheHumanFrontierScienceProgram.
Butaninternationalsolutionmaybealongtimecoming.
Inthemeantime,bioresourceinfrastructuresmightbewisetoinvestsometimeinpublicrelations,givingpaymastersagreaterunderstandingoftheconsequencesoftheirdecisions.
"Thesharingofbioresourcesdoesnotandshouldnotstopatnationalborders.
"252NATURE|Vol462|19November2009EDITORIALS2009MacmillanPublishersLimited.
Allrightsreserved

Ceranetworks顶级合作伙伴 香港E3 16G 299元 香港E5 32G 650元 美国E3 16G 650元

提速啦(www.tisula.com)是赣州王成璟网络科技有限公司旗下云服务器品牌,目前拥有在籍员工40人左右,社保在籍员工30人+,是正规的国内拥有IDC ICP ISP CDN 云牌照资质商家,2018-2021年连续4年获得CTG机房顶级金牌代理商荣誉 2021年赣州市于都县创业大赛三等奖,2020年于都电子商务示范企业,2021年于都县电子商务融合推广大使。资源优势介绍:Ceranetwo...

RackNerd 2022春节促销提供三款年付套餐 低至年付10.88美元

RackNerd 商家我们应该是比较熟悉的商家,速度一般,但是人家便宜且可选机房也是比较多的,较多集中在美国机房。包括前面的新年元旦促销的时候有提供年付10美元左右的方案,实际上RackNerd商家的营销策略也是如此,每逢节日都有活动,配置简单变化,价格基本差不多,所以我们网友看到没有必要囤货,有需要就选择。RackNerd 商家这次2022农历新年也是有几款年付套餐。低至RackNerd VPS...

80VPS:香港服务器月付420元;美国CN2 GIA独服月付650元;香港/日本/韩国/美国多IP站群服务器750元/月

80vps怎么样?80vps最近新上了香港服务器、美国cn2服务器,以及香港/日本/韩国/美国多ip站群服务器。80vps之前推荐的都是VPS主机内容,其实80VPS也有独立服务器业务,分布在中国香港、欧美、韩国、日本、美国等地区,可选CN2或直连优化线路。如80VPS香港独立服务器最低月付420元,美国CN2 GIA独服月付650元起,中国香港、日本、韩国、美国洛杉矶多IP站群服务器750元/月...

boasting为你推荐
Sicherheitsserverhostschromesolutionssb重要产品信息指南支持ipad支持ipad支持ipad支持ipad重庆网通重庆网通上网资费目前是多少? 小区宽带接入类型的eacceleratorCentOS5.2下安装eAccelerator,怎么都装不上ipad如何上网iPad怎么上网?请高手指点
域名空间 国内vps 动态域名解析软件 idc评测网 godaddy续费优惠码 godaddy域名优惠码 牛人与腾讯客服对话 阿里云浏览器 免费智能解析 厦门电信 服务器是干什么用的 web应用服务器 中国电信测速网站 德讯 万网空间 购买空间 买空间网 域名和主机 中国电信宽带测速 石家庄服务器 更多