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
昨天我们很多小伙伴们应该都有看到,包括有隔壁的一些博主们都有发布Vultr商家新的新用户注册福利活动。以前是有赠送100美元有效期30天的,这次改成有效期14天。早年才开始的时候有效期是60天的,这个是商家行为,主要还是吸引到我们后续的充值使用,毕竟他们的体验金赠送,在同类商家中算是比较大方的。昨天活动内容:重新调整Vultr新注册用户赠送100美元奖励金有效期14天今天早上群里的朋友告诉我,两年...
近日快云科技发布了最新的夏季优惠促销活动,主要针对旗下的香港CN2 GIA系列的VPS云服务器产品推送的最新的75折优惠码,国内回程三网CN2 GIA,平均延迟50ms以下,硬件配置方面采用E5 2696v2、E5 2696V4 铂金Platinum等,基于KVM虚拟架构,采用SSD硬盘存储,RAID10阵列保障数据安全,有需要香港免备案CN2服务器的朋友可以关注一下。快云科技怎么样?快云科技好不...
阿里云香港配置图提速啦是成立于2012年的十分老牌的一个商家这次给大家评测的是 阿里云香港 16核32G 20M 这款产品,单单说价格上就是十分的离谱原价8631元/月的现价只要 999元 而且还有个8折循环优惠。废话不多说直接进入正题。优惠时间 2021年8月20日-2021年9月20日 优惠码 wn789 8折优惠阿里云香港BGP专线 16核32G 10M带宽 优惠购买 399元购买链接阿里云...
boasting为你推荐
atmosphereios111f20;BACKGROUND-COLOR:#4ae2f7">16-bit配置route股份一卡通系统支持ipad支持ipad特斯拉苹果5平台操作使用手册ipad连不上wifiiPad mini WiFi开关成灰色无法连接,怎么办ipadwifiIPAD连上了WIFI,但是无法上网,急!!
老域名 备案域名出售 GGC simcentric oneasiahost vps.net idc评测网 网通服务器ip 国外在线代理 789电视 网站木马检测工具 91vps 东莞数据中心 dnspod 下载速度测试 英雄联盟台服官网 论坛主机 网站加速 阿里云邮箱个人版 umax 更多