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
42
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
TheJapaneseandU.S.governmentsbothstudiedtheconceptof"wiredcities"usingcableTVtodeliverentertainment,informati
A、Thewomandoesn’tthinkitaproblemtogetherpassportrenewed.B、Thewomanhasdifficultyrenewingherpassport.C、Thewoma
A、Becauseitisastudentaffair.B、Becauseoftheschedule.C、Becauseitadvocatesahealthylifestyle.D、Becauseitistoodea
Lightpollutionistheglowyoucanseeatnightabovecitiesandtowns.Itisaproblemthathasbeenaccompanyingmaneversin
A、ThatGhanaiantomatoestastebetterthanBritishones.B、ThatBritishtomatoesarehealthierthanGhanaianones.C、Thatprotec
A、Anessay.B、Amagazinearticle.C、Apoem.D、Ashortstory.DWhatmustthestudentsreadforWednesday?预览选项可知,本题考查关于学生的某项作业。问题
Theloudestoutcryaboutpovertyseemedtocomeinthewealthiestcountrybyfarintheworld.Accordingtomostcalculations,【C
A、Themanshouldscheduleanearexaminationwithoutdelay.B、Themanshoulddosomelisteningpractice.C、Thewomenshouldorde
随机试题
事物发展的必然性产生于()
母畜始配合适体重因为成年体重的
“经脉所过,主治所及”体现的是腧穴的
A、13.44B、13.47C、13.48D、13.45E、13.40;将以下数字修约为四位有效数字13.4451
诊断肾病综合征时,不含哪项表现?()
《安全生产法》对负有安全生产监督管理职责的部门的行政许可职责作了()规定。
与生成月度进度报告有关的数据处理流程属于()。
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
如右图所示,甲和乙在面积为54π的半圆形游泳池内游泳,他们分别从位置A和B同时出发,沿直线同时游到位置C。若甲的速度为乙的2倍,则原来甲、乙两人相距:
TravelerSafetyTips:1.Donotanswerthedoorinahotelormotelroomwithoutverifyingwhoitis(ifapersonclaimstobea
最新回复
(
0
)