本世纪末阿德利企鹅数量将下降60%
文章来源:未知 文章作者:enread 发布时间:2016-06-30 08:43 字体: [ ]  进入论坛
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Climate has influenced the distribution patterns of Adélie penguins1 across Antarctica for millions of years. The geologic3 record shows that as glaciers4 expanded and covered Adélie breeding habitats with ice, penguin2 colonies were abandoned. When the glaciers melted during warming periods, this warming positively5 affected6 the Adélie penguins, allowing them to return to their rocky breeding grounds.
 
But now, University of Delaware scientists and colleagues report that this beneficial warming may have reached its tipping point.
 
In a paper published today (June 29) in Scientific Reports, the researchers project that approximately 30 percent of current Adélie colonies may be in decline by 2060 and approximately 60 percent may be in decline by 2099.
 
"It is only in recent decades that we know Adélie penguins population declines are associated with warming, which suggests that many regions of Antarctica have warmed too much and that further warming is no longer positive for the species," said the paper's lead author Megan Cimino, who earned her doctoral degree at UD in May.
 
Co-authors on the work include Matthew Oliver, principal investigator7 on the project and Patricia & Charles Robertson Professor of Marine8 Science & Policy in UD's College of Earth, Ocean, and Environment; Heather J. Lynch, assistant professor in the Department of Ecology and Evolution at Stony9 Brook10 University; and Vincent S. Saba, a research fishery biologist with the National Oceanic and Atmospheric11 Administration's National Marine Fisheries Service.


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1 penguins fc5bf5a50fd6b440a35d113f324c5e75     
n.企鹅( penguin的名词复数 )
参考例句:
  • Why can penguins live in cold environment? 为什么企鹅能生活在寒冷的环境中? 来自《简明英汉词典》
  • Whales, seals, penguins, and turtles have flippers. 鲸、海豹,企鹅和海龟均有鳍形肢。 来自《现代英汉综合大词典》
2 penguin W3jzf     
n.企鹅
参考例句:
  • The penguin is a flightless bird.企鹅是一种不会飞的鸟。
  • He walked with an awkward gait like a penguin.他走路的步子难看得就像企鹅。
3 geologic dg3x9     
adj.地质的
参考例句:
  • The Red Sea is a geologic continuation of the valley.红海就是一个峡谷在地质上的继续发展。
  • Delineation of channels is the first step of geologic evaluation.勾划河道的轮廓是地质解译的第一步。
4 glaciers e815ddf266946d55974cdc5579cbd89b     
冰河,冰川( glacier的名词复数 )
参考例句:
  • Glaciers gouged out valleys from the hills. 冰川把丘陵地带冲出一条条山谷。
  • It has ice and snow glaciers, rainforests and beautiful mountains. 既有冰川,又有雨林和秀丽的山峰。 来自英语晨读30分(高一)
5 positively vPTxw     
adv.明确地,断然,坚决地;实在,确实
参考例句:
  • She was positively glowing with happiness.她满脸幸福。
  • The weather was positively poisonous.这天气着实讨厌。
6 affected TzUzg0     
adj.不自然的,假装的
参考例句:
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
7 investigator zRQzo     
n.研究者,调查者,审查者
参考例句:
  • He was a special investigator for the FBI.他是联邦调查局的特别调查员。
  • The investigator was able to deduce the crime and find the criminal.调查者能够推出犯罪过程并锁定罪犯。
8 marine 77Izo     
adj.海的;海生的;航海的;海事的;n.水兵
参考例句:
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时,他自愿参加了海军陆战队。
9 stony qu1wX     
adj.石头的,多石头的,冷酷的,无情的
参考例句:
  • The ground is too dry and stony.这块地太干,而且布满了石头。
  • He listened to her story with a stony expression.他带着冷漠的表情听她讲经历。
10 brook PSIyg     
n.小河,溪;v.忍受,容让
参考例句:
  • In our room we could hear the murmur of a distant brook.在我们房间能听到远处小溪汩汩的流水声。
  • The brook trickled through the valley.小溪涓涓流过峡谷。
11 atmospheric 6eayR     
adj.大气的,空气的;大气层的;大气所引起的
参考例句:
  • Sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
  • Clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。
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