|
|
Article: Dams spur more invasions by new species: study
- Article from:
- The Hindustan Times
- Article date:
- September 3, 2008
CopyrightCopyright © HT Media Ltd. All Rights Reserved. Provided by ProQuest LLC. (Hide copyright information)
|
Report from Indo-Asian News Service brought to you by HT Syndication.
Washington, Sept. 3 -- The growing number of dams is increasing the number of invasive species and the speed with which they spread, threatening natural lakes, said a study.
The team led by Colorado University looked at data from 4,200 lakes and more than 1,000 impoundments across Wisconsin and the upper peninsula of Michigan. Besides, more than 80,000 large dams and some 2.5 million smaller impoundments sit across the US, the study said.
The study showed non-indigenous species are up to 300 times more likely to occur in impoundments than in natural lakes, increasing the invasion risks for natural lakes.
The results ...