首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Protecting just 42 sites across Asia, ranging from temperate forests to tropical grasslands, could be key to the survival of one
Protecting just 42 sites across Asia, ranging from temperate forests to tropical grasslands, could be key to the survival of one
admin
2013-07-20
59
问题
Protecting just 42 sites across Asia, ranging from temperate forests to tropical grasslands, could be key to the survival of one of the world’s most symbolic and feared, wild cats—the tiger.
That radical proposal, published online in the journal Public Library of Science-. Biology, represents a scaling-back of ambition and what one of the paper’s authors calls "ruthless priority setting". "It’s forcing hard decisions," said Simon Stuart, co-author of the paper, who chairs the species survival commission at the International Union for Conservation of Nature. For animals that are worth considerable sums, he added, "there’s no way you can protect them across an entire landscape, because the costs are too high".
John Robinson, executive vice president for conservation and science at the Wildlife Conservation Society, said researchers experienced "a real shock" when they determined what was needed to keep the species going. The majority of about 1 000 breeding females are found in India, Russia and Indonesia. None remain in Cambodia, China, DPRK and Vietnam. "Unless we protect those core populations, within a few short years we could lose tigers altogether," said Robinson, another of the paper’s co-authors.
Over the past couple of decades, environmentalists have focused on preserving large, ecologically rich landscapes to ensure that a wide range of plant and animal species can thrive over the long term. But for a number of highly endangered species, scientists now say, governments and nonprofit organizations must target their efforts more narrowly if they want to ensure that these populations remain viable.
In the case of the tiger, three factors—habitat loss, the overhunting of its prey and poaching (偷猎)— have caused its number to drop from more than 10 000 in the 1980s to fewer than 3 500 today. It is said that tiger parts are so prized in Eastern medicine that a dead one can sell for $ 1 500 to $ 3 500 before its eyes are sold as a cure for some complicated diseases and are converted into a soup for the body, and its bones are ground into powder to treat some diseases like typhoid (伤寒). Researchers have determined that tigers occupy less than 7 percent of their historic range. In addition to poaching, Asia’s rapid economic development—including road and dam construction—has eroded tiger habitat.
Robinson and others advocate a two-step process that focuses on monitoring and protecting tigers in the 42 source sites and a longer-term effort to preserve the large landscapes tigers need to hunt and wander.
According to John Robinson, when researchers determined what they should do to save the species from going extinct, they suffered from______.
选项
答案
a real shock
解析
同义转述题。本题考查研究者做出决定时的心理感受。由定位句可知,据Robinson透露,研究者在确定保护这些物种生存下去所必需的工作时,感受到了“真正的震撼”。题干中的save the species from goingextinct,suffered from分别是原文中keep thespecies going,experienced的同义转述。
转载请注明原文地址:https://kaotiyun.com/show/6Kn7777K
0
大学英语六级
相关试题推荐
Parentsareoftenupsetwhentheirchildrenpraisethehomesoftheirfriendsandregarditasaslur(诽谤,中伤)ontheirowncooki
Parentsareoftenupsetwhentheirchildrenpraisethehomesoftheirfriendsandregarditasaslur(诽谤,中伤)ontheirowncooki
Parentsareoftenupsetwhentheirchildrenpraisethehomesoftheirfriendsandregarditasaslur(诽谤,中伤)ontheirowncooki
A、Itwasmorerespected.B、Itwasusedbymorepeople.C、Itwasvandalizedbytourists.D、ItquicklydeterioratedagainafterLi
A、TheWaterfallGarden.B、Thetheatre.C、TheWaterWorld.D、TheOceanPark.D细节辨认题。问题询问哪个景点周末10点开放。听力开始女士说不知他们能否抽一天去海洋公园,男士在接下来的
OnDecember25,2000,manypeopleacrossNorthAmericareceivedarareChristmastreatwhenthemoonpassedinfrontofthesun
OnDecember25,2000,manypeopleacrossNorthAmericareceivedarareChristmastreatwhenthemoonpassedinfrontofthesun
Thisisaparticularmomentinthehistoryofdigitalnetworks,onewhenpowerfulcorporateactors(参与者)andhigh-performancenetw
Thisisaparticularmomentinthehistoryofdigitalnetworks,onewhenpowerfulcorporateactors(参与者)andhigh-performancenetw
随机试题
下列哪条违背了医师的道德义务
A.便血为主,痔块不脱出肛门外B.便血加重,排便时痔块脱出、便后能自行回缩复位C.偶有便血,但腹压增加时痔块即可脱出,且不能自行回缩D.突感肛门剧痛,肛管皮下可见暗紫色肿物E.便时、便后两次疼痛高峰一期内痔()
月经周期第8-11天最易受孕。()
毛泽东在《论十大关系》中确立的社会主义建设的基本方针是()。
拜占庭中等教育学习的基本内容是()。
古老的五刑是指()。
TheDeclineofU.S.ImmigrationApplicationImmigrantsaren’tseekingU.S.citizenshipasoftenthesedays—notsincetheAme
(2010下项管)在大项目管理中,往往要在项目各阶段进行项目范围确认。有关范围确认的叙述,正确的是______。
Insportthesexesareseparate.Womenandmendonotrunorswiminthesameraces.Womenarelessstrongthanmen.Thatatlea
AccordingtotheWorldHealthOrganization,airpollutionkillsabout________aroundtheworldeachyear.
最新回复
(
0
)