Launch for amphibian 'life raft' 两栖动物“救生筏”活动开启
文章来源:未知 文章作者:meng 发布时间:2009-08-27 03:06 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

Conservationists have launched a new initiative aimed at safeguarding the world's amphibians2 from extinction3.

自然资源?;ぢ壅咭丫⑵鹨幌畋;な澜缟狭狡芏锩庥诿鹁脑硕?。



The Amphibian1 Survival Alliance will bring together existing projects and organisations, improving co-ordination, scientific research and fund-raising.

About a third of amphibian species are threatened with extinctions.

A two-day summit held last week in London identified the two main threats as destruction of habitat and the fungal disease(真菌?。?/strong> chytridiomycosis.

"The world's amphibians(两栖类) are facing an uphill battle(艰难的斗争) for survival," said James Collins, co-chair of the Amphibian Specialist Group (ASG) co-ordinated by the International Union for the Conservation of Nature (IUCN).

"By far the worst threats are infectious disease and habitat destruction, so the Alliance will focus on these issues first."

Last week's meeting, held at the Zoological Society of London (ZSL), declared that research into possible treatments for the chytrid(壶菌) fungus4 should be a top priority.

Identified only a decade ago, the fungus now infects amphibians in the Americas, Australia, Europe, Asia and Africa.

How it originated and how it kills are matters of ongoing5 research.

But in practical terms, finding something that can stop it in open country rather than the laboratory is the big challenge.

Researchers have found that some amphibian species carry chemicals on their skin that provide a natural defence.

The idea is to see whether these chemicals can be turned into something that can attack the fungus in the wild, providing a defence for species that currently have none.

The new Amphibian Survival Alliance (ASA) sees this line of research as an urgent priority.

More difficult to tackle(处理,抓?。?/strong> will be the ongoing destruction of habitat that is a concern in most continents, but especially in parts of Asia that are seeing rapid expansion of cities, industry and infrastructure6.

"If we want to stop the amphibian extinction crisis, we have to protect the areas where amphibians are threatened by habitat destruction," said Claude Gascon, the Amphibian Specialist Group's other co-chair.

"One of the reasons amphibians are in such dire7(可怕的,悲惨的) straits(困难,窘境) is because many species are only found in single sites and are therefore much more susceptible8 to(对……敏感的) habitat loss."

As a group, amphibians are considerably9 more threatened than birds, mammals, fish or reptiles10(爬行动物).

Apart from habitat loss and chytrid, issues of concern are:
unsustainable hunting for food, medicine and the pet trade
chemical pollution
climatic change
introduced species
other infectious diseases

The formation of the ASA was proposed in 2006 but adequate financial and institutional backing did not materialise.

At that stage scientists were divided over how money and resources should be split between conservation in the wild and captive breeding.

Now there is general agreement that both strategies are necessary.

Initial backing emerged at the ZSL meeting in the form of a $200,000 pledge that will fund the ASA co-ordinator's post for two years.



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1 amphibian mwHzx     
n.两栖动物;水陆两用飞机和车辆
参考例句:
  • The frog is an amphibian,which means it can live on land and in water.青蛙属于两栖动物,也就是说它既能生活在陆地上也能生活在水里。
  • Amphibian is an important specie in ecosystem and has profound meaning in the ecotoxicology evaluation.两栖类是生态系统中的重要物种,并且对环境毒理评价有着深远意义。
2 amphibians c4a317a734a700eb6f767bdc511c1588     
两栖动物( amphibian的名词复数 ); 水陆两用车; 水旱两生植物; 水陆两用飞行器
参考例句:
  • The skin of amphibians is permeable to water. 两栖动物的皮肤是透水的。
  • Two amphibians ferry them out over the sands. 两辆水陆两用车把他们渡过沙滩。
3 extinction sPwzP     
n.熄灭,消亡,消灭,灭绝,绝种
参考例句:
  • The plant is now in danger of extinction.这种植物现在有绝种的危险。
  • The island's way of life is doomed to extinction.这个岛上的生活方式注定要消失。
4 fungus gzRyI     
n.真菌,真菌类植物
参考例句:
  • Mushrooms are a type of fungus.蘑菇是一种真菌。
  • This fungus can just be detected by the unaided eye.这种真菌只用肉眼就能检查出。
5 ongoing 6RvzT     
adj.进行中的,前进的
参考例句:
  • The problem is ongoing.这个问题尚未解决。
  • The issues raised in the report relate directly to Age Concern's ongoing work in this area.报告中提出的问题与“关心老人”组织在这方面正在做的工作有直接的关系。
6 infrastructure UbBz5     
n.下部构造,下部组织,基础结构,基础设施
参考例句:
  • We should step up the development of infrastructure for research.加强科学基础设施建设。
  • We should strengthen cultural infrastructure and boost various types of popular culture.加强文化基础设施建设,发展各类群众文化。
7 dire llUz9     
adj.可怕的,悲惨的,阴惨的,极端的
参考例句:
  • There were dire warnings about the dangers of watching too much TV.曾经有人就看电视太多的危害性提出严重警告。
  • We were indeed in dire straits.But we pulled through.那时我们的困难真是大极了,但是我们渡过了困难。
8 susceptible 4rrw7     
adj.过敏的,敏感的;易动感情的,易受感动的
参考例句:
  • Children are more susceptible than adults.孩子比成人易受感动。
  • We are all susceptible to advertising.我们都易受广告的影响。
9 considerably 0YWyQ     
adv.极大地;相当大地;在很大程度上
参考例句:
  • The economic situation has changed considerably.经济形势已发生了相当大的变化。
  • The gap has narrowed considerably.分歧大大缩小了。
10 reptiles 45053265723f59bd84cf4af2b15def8e     
n.爬行动物,爬虫( reptile的名词复数 )
参考例句:
  • Snakes and crocodiles are both reptiles. 蛇和鳄鱼都是爬行动物。 来自《简明英汉词典》
  • Birds, reptiles and insects come from eggs. 鸟类、爬虫及昆虫是卵生的。 来自《现代汉英综合大词典》
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