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Tallgrass Prairies May Provide Early Warning Of Climate Change
February 5, 2001 — Tallgrass prairies. One of America's most endangered ecosystems. While their size has diminished over the years — only an estimated 5 percent of the original tallgrass prairie in the United ... > full story -
Scientists Find That Grasslands Can Act As "Carbon Sinks"
January 11, 2001 — Scientists have long known that forests sometimes act as "carbon sinks," absorbing more of the greenhouse gas carbon dioxide than they release. Now, a team of researchers has identified a ... > full story -
New Study Shows Bison Don’t Favor Groomed Roads In Yellowstone National Park
January 9, 2001 — Bison routinely travel along the groomed roads in Yellowstone National Park because it’s a heck of a lot easier than plowing through piles of snow, right? Not at all, according to a study by a ... > full story -
Ancient Lake Sediments Yield Clues About Future Central Plains Drought Cycles
August 11, 2000 — Analyzing ancient sediments laid down in a North Dakota lake thousands of years ago, ecologists and earth scientists have found evidence of century-scale cycles of drought and moisture. The finding ... > full story -
Spy Satellite Photos Document Desert Plant Invasion
August 11, 2000 — Declassified spy satellite images, combined with aerial photos, document an invasion of honey mesquite bushes into a former arid grassland that is now part of a long-term scientific study of the ... > full story -
Colorado State And International Scientists Say Loss In Biodiversity By Year 2100 Could Be Consequence Of Global Changes
March 13, 2000 — A new report in the journal Science is the first systematic look at how biodiversity is likely to be impacted by several agents of human-caused global change--and global warming and climate change ... > full story -
Biodiversity Yields Dividends, Finds Pan-European Research
November 10, 1999 — The loss of biodiversity in European grasslands will make them less productive, reducing the amount of energy available to the rest of the food chain and threatening the overall health of the ... > full story -
Unveiling All Of The Consequences: Introduced Plants May Be Causing Hidden Trouble
October 29, 1999 — Researchers have long debated the consequences of introducing non-native species into ecosystems. Recently, these debates have centered upon the effects of invasive exotics, and dramatic pictures of ... > full story -
USGS Releases Assessment Of Nation's Biological Resources
September 20, 1999 — The common theme of a report detailing the first large-scale assessment of the health and status and trends of the nation's biological resources is that across the United States land use, water ... > full story -
Seafood Was Brain Food, Says Researcher
August 27, 1999 — The first humans may have been beach-dwellers foraging for shellfish, not grassland hunter-gatherers, says a University of Toronto ... > full story
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