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
41
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
A、Sayinggoodbyetohissecretary.B、Buyingaticketforaconcert.C、Orderingadinnerinahotel.D、Arrangingaplanetrip.D推
TheJapaneseandU.S.governmentsbothstudiedtheconceptof"wiredcities"usingcableTVtodeliverentertainment,informati
A、Unemployment.B、Familybreakup.C、Mentalproblems.D、Drinking.B女士问男士。在街上流浪的是哪些人,男士说,有失业的,有精神病患者,还有一些酒鬼。这些信息中没有“家庭破裂者”
Whenaninventionismade,theinventorhasthreepossiblecoursesofactionopentohim:hecangivetheinventiontotheworld
OnDecember25,2000,manypeopleacrossNorthAmericareceivedarareChristmastreatwhenthemoonpassedinfrontofthesun
Thisisaparticularmomentinthehistoryofdigitalnetworks,onewhenpowerfulcorporateactors(参与者)andhigh-performancenetw
TheactofGooglingoneselfhasbecomethedigitalage’spremiereguiltypleasure—anactivityenjoyedbyallandadmittedbyfew
随机试题
A、WhentheMoonpassestheEarth.B、WhentheMoonpassestheSun.C、WhentheMoongoesawayfromtheEarth.D、WhentheMoonpass
这个标志是何含义?
下列有关麻醉前准备的叙述,正确的是
A.囊肿衬里上皮为一薄层复层鳞状上皮,无上皮钉突。基底细胞层界限清楚,棘层较薄B.瘤细胞呈交错排列的纤维结缔组织,内散在牙源性上皮团C.肿瘤组织内可见到淀粉样物质钙化,呈同心圆样沉积D.肿瘤内牙釉质、牙本质、牙骨质和牙髓排列如同正常牙E.巨细胞多分
A.药品名称B.生产批号C.适应症D.包装数量药品外标签的内容不包含()
患者,女性,58岁。因血性白带,外阴瘙痒,灼热感及尿频、尿痛、尿失禁就诊。医生诊断为老年性阴道炎。护士指导坐浴正确的是
根据企业所得税法律制度的规定,下列收入中,属于企业所得税免税收人的有()。
7位ASCII码共有多少个不同的编码值?()
()集团公司总部在人力资源管理方面倾向于在公司治理结构框架内对企业高层实施管理。
Theflowerneeds______.
最新回复
(
0
)