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
imidc对日本独立服务器在搞特别促销,原价159美元的机器现在只需要88美元,而且给13个独立IPv4,30Mbps直连带宽,不限制流量。注意,本次促销只有一个链接,有2个不同的优惠码,你用不同的优惠码就对应着不同的配置,价格也不一样。88美元的机器,下单后默认不管就给512G SSD,要指定用HDD那就发工单,如果需要多加一个/28(13个)IPv4,每个月32美元...官方网站:https:...
ZJI发布了一款7月份特别促销独立服务器:香港邦联四型,提供65折优惠码,限量30台(每用户限购1台),优惠后每月520元起。ZJI是原来Wordpress圈知名主机商家:维翔主机,成立于2011年,2018年9月启用新域名ZJI,提供中国香港、台湾、日本、美国独立服务器(自营/数据中心直营)租用及VDS、虚拟主机空间、域名注册等业务。下面列出这款服务器的配置信息。香港邦联四型CPU:2*E5-2...
享有云怎么样?享有云是一家新的国内云服务器商家,目前提供国内、香港及海外地区的云服务器,拥有多线路如:BGP线路、CN2线路、高防等云服务器,并且提供稳定、安全、弹性、高性能的云端计算服务,实时满足您的多样性业务需求。目前,美国bgp云服务器,5M带宽,低至20元/月起,270元/年起,首月打折;香港2核2G2M仅50元/月起,450元/年起!点击进入:享有云官方网站地址享有云优惠活动:一、美国B...
boasting为你推荐
SAProutelowercasecss恶意win7输入ipad支持ipad支持ipad支持ipad支持ipad支持ipadcss3圆角如何用CSS实现圆角矩形?
ip查域名 备案未注册域名 双线vps 域名备案号查询 域名备案批量查询 n点虚拟主机管理系统 怎么申请域名 万网域名证书查询 亚洲大于500m 12306抢票攻略 贵州电信宽带测速 合肥鹏博士 韩国网名大全 qq数据库下载 老左来了 183是联通还是移动 域名评估 nerds 厦门电信 独立主机 更多