News articles tagged with 'stream' (Page 5)
Streams are natural filters
— 12 Mar 2008 18:00 | EnvironmentStreams are natural filters that help remove and transform pollutants that drain from surrounding watersheds, including excess nitrogen from human activities. Scientists know this as…
Salamanders, headwater streams critical in food chain
— 22 Feb 2008 17:21 | BiologyUniversity of Missouri scientist Ray Semlitsch studies creatures most people don't ever see. These creatures are active only at night and thrive in the shallow, cool, wet surroundings…
New research offers prioritisation plan for reducing nutrient pollution in feeder streams
— 11 Feb 2008 17:42 | EnvironmentTo help resource managers improve the health of coastal waters degraded by nutrient pollution, a group of scientists has developed a framework for prioritising stream restoration efforts…
Smithsonian study: Sediment prediction tools off the mark
— 30 Jan 2008 11:49 | EnvironmentA recent study led by Smithsonian ecologist Kathy Boomer suggests it is time for a change in at least one area of watershed management. Boomer has been examining the tools scientists…
Drought length influences survival of fish in stream pools
— 17 Jan 2008 07:35 | BiologyUniversity of Arkansas researchers have found that not all pools of water are equal from year to year when it comes to housing fish species during dry spells - a finding that becomes…
Greenhouse gas from English streams
— 10 Dec 2007 16:08 | EnvironmentEnglish chalk streams are less healthy than we thought and are potentially even contributing to global warming, said Dr Mark Trimmer at a Science Media Centre press briefing today…
Recovery from acid rain much slower than expected
— 29 Sep 2007 00:01 | EnvironmentAcid rain was one of the world's worst pollution problems of the 1970s and 1980s, affecting large areas of upland Britain, as well as Europe and North America. In Wales, more than 12,000…