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

RAKsmart含站群服务器/10G带宽不限流量首月半价

RAKsmart 商家估摸着前段时间服务器囤货较多,这两个月的促销活动好像有点针对独立服务器。前面才整理到七月份的服务器活动在有一些配置上比上个月折扣力度是大很多,而且今天看到再来部分的服务器首月半价,一般这样的促销有可能是商家库存充裕。比如近期有一些服务商挖矿服务器销售不好,也都会采用这些策略,就好比电脑硬件最近也有下降。不管如何,我们选择服务器或者VPS主机要本着符合自己需求,如果业务不需要,...

青云互联-洛杉矶CN2弹性云限时五折,9.5元/月起,三网CN2gia回程,可选Windows,可自定义配置

官方网站:点击访问青云互联官网优惠码:五折优惠码:5LHbEhaS (一次性五折,可月付、季付、半年付、年付)活动方案:的套餐分为大带宽限流和小带宽不限流两种套餐,全部为KVM虚拟架构,而且配置都可以弹性设置1、洛杉矶cera机房三网回程cn2gia 洛杉矶cera机房                ...

六一云互联(41元)美国(24元)/香港/湖北/免费CDN/免费VPS

六一云互联六一云互联为西安六一网络科技有限公司的旗下产品。是一个正规持有IDC/ISP/CDN的国内公司,成立于2018年,主要销售海外高防高速大带宽云服务器/CDN,并以高质量.稳定性.售后相应快.支持退款等特点受很多用户的支持!近期公司也推出了很多给力的抽奖和折扣活动如:新用户免费抽奖,最大可获得500元,湖北新购六折续费八折折上折,全场八折等等最新活动:1.湖北100G高防:新购六折续费八折...

boasting为你推荐
2021年中国城镇污泥处理处置技术与应用高级研讨会支持ipad支持ipadexportingjavacss3圆角css实现圆角的几种方法是什么?google中国地图强大的谷歌地图,为什么中国不用起来chromeframe有用过 Google Chrome Frame 的吗css选择器CSS的常见选择器有哪几种win7还原系统win7怎么初始化系统?系统还原?google搜图google自定义搜索是什么?怎么用
godaddy域名注册 中国域名网 sugarhosts 2017年黑色星期五 私有云存储 嘟牛 合肥鹏博士 有益网络 vip购优汇 idc资讯 秒杀汇 hdd 网站在线扫描 美国独立日 空间登入 沈阳主机托管 华为云建站 空间申请 域名和主机 ssl加速 更多