www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

English 中文網 漫畫網 愛新聞iNews 翻譯論壇
中國網站品牌欄目(頻道)
當前位置: Language Tips > Special Speed News VOA慢速

New findings about loss of bees

[ 2012-04-06 14:34]     字號 [] [] []  
免費訂閱30天China Daily雙語新聞手機報:移動用戶編輯短信CD至106580009009

New findings about loss of bees

This is the VOA Special English Agriculture Report.

Bees add an estimated 18 billion dollars a year to the value of American crops. They pollinate flowers that become fruits, nuts and vegetables. But, in recent years, honeybee colonies in the United States and Europe have been shrinking. Scientists have proposed different theories to explain what is known as colony collapse disorder.

New research suggests that a commonly used group of insecticides could cause bees to have a hard time finding their way back to their hive.

The new research looks at the use of pesticides called neonicotinoids. They were first used in the 1990s. They are now put on the seeds of many major crops around the world. The seedlings absorb the chemical as they grow.

That means farmers do not need to spray a whole field. Instead there is a little bit of insecticide inside each plant -- including the pollen and nectar that the bees want.

There is not enough pesticide to kill them. But the new research in the journal Science says it may harm them anyway.

Researchers stuck microchips to the backs of the bees. These chips recorded the bees' movements as they came and went from their hive. The scientists fed some bees sugar water with a low dose of a neonicotinoid. The study found that these bees were about twice as likely not to return as other bees.

Mickael Henry from INRA, the French national agriculture research institute, says the bees basically get drunk.

MICKAEL HENRY: "Intoxicated honeybees with those small doses may just get lost and are not able to find their way back home."

For some crops around the world, wild pollinators like bumblebees are more important than honeybees. Dave Goulson at the University of Sterling in Britain worked on another study published in Science. He says the pesticides could help explain why bumblebee populations are also decreasing.

DAVE GOULSON: "There were 85 percent fewer queens produced when they'd been exposed to realistic field levels."

Bayer CropScience makes neonicotinoid pesticides. Company spokesman Jack Boyne disputed the findings.

JACK BOYNE: "Instead of dosing the animals at field-relevant concentrations as the authors intended, they instead dosed them at levels far greater than what would commonly be experienced in the field."

He also notes that researchers are studying other factors that could affect bee populations. These include parasites, diseases and stress caused by transporting beehives to farms.

Some European countries have banned the pesticides. And there are growing calls to ban them in the United States as well.

And that's the VOA Special English Agriculture Report. I'm Jim Tedder.

neonicotinoid: 新煙堿類殺蟲劑

nectar: 花蜜

Related stories:

The Teacher: Bee idioms 成語老師∶蜜蜂成語

New findings about disorder in bees

蜜蜂的“舞蹈”如何提高網絡服務器效率的?

Spelling bee的來源

(來源:VOA 編輯:旭燕)

 
中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883631聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。
 

關注和訂閱

人氣排行

翻譯服務

中國日報網翻譯工作室

我們提供:媒體、文化、財經法律等專業領域的中英互譯服務
電話:010-84883468
郵件:translate@chinadaily.com.cn
 
 
主站蜘蛛池模板: 国产精品久久久久999 | 91最新网站 | 日韩免费一级a毛片在线播放一级 | www中文字幕在线观看 | 亚洲美女一级片 | 中文字幕视频免费在线观看 | 亚洲视频精品在线观看 | 美国免费三片在线观看 | 亚洲欧美视频二区 | 国产欧美综合一区二区 | 亚洲欧美日韩综合二区三区 | 日韩精品一级a毛片 | 国产一国产a一级毛片 | 久久精品国产半推半就 | 国产成人女人视频在线观看 | 国产三级在线 | 欧美一级特黄做 | 第一区免费在线观看 | 男人天堂av网| 手机日韩理论片在线播放 | 一区二区三区亚洲视频 | 久草草视频在线观看免费高清 | 欧美在线一级精品 | 最新国产精品亚洲二区 | 国产a精品三级 | 91久久香蕉国产线看 | 亚洲午夜影视 | 热re66久久精品国产99热 | 日本乱人伦毛片 | 日本经典在线三级视频 | 欧美黄网站免费观看 | 久久国产精品女 | a级男女性高爱潮高清试 | 最新在线步兵区 | 欧美中日韩在线 | 国产成人99精品免费观看 | 国产高清晰在线播放 | 国产成人禁片免费观看 | 久久久免费的精品 | 国内国产真实露脸对白 | 毛片一级在线观看 |