Navigation Links
Invading weed threatens devastation to western rangelands
Date:11/11/2010

CORVALLIS, Ore. A new field study confirms that an invasive weed called medusahead has growth advantages over most other grass species, suggesting it will continue to spread across much of the West, disrupt native ecosystems and make millions of acres of grazing land almost worthless.

The research, by scientists from Oregon State University and the Agricultural Research Service, was one of the most comprehensive studies ever done that compared the "relative growth rate" of this invasive annual grass to that of other competing species in natural field conditions.

It found that medusahead has a faster growth rate, a longer period of growth and produced more total biomass even than cheatgrass another invading species that is a major problem in its own right, but not as devastating as medusahead.

"Medusahead is now spreading at about 12 percent a year over 17 western states," said Seema Mangla, a researcher in the OSU College of Forestry. "Once established, it's very hard to get rid of. It displaces native grasses and even other invasive species that animals can still eat. Unless we do more to stop it, medusahead will take over much of the native grassland in the West.

"This is a devil species," she said.

Research is identifying some other grass species, including crested wheatgrass and Sandberg's bluegrass, that may be able to compete with medusahead, reduce its spread and preserve the grazing value of lands, Mangla said. They are also studying new ways of restoring medusahead-infested areas. But so far, medusahead has received very little attention compared to other threats such as cheatgrass, even though it ultimately poses a far greater threat to ecosystems across the West.

Cheatgrass is a serious problem on more than 50 million acres, Mangla said, but grazing animals can still eat it. The new study makes it clear that cheatgrass and native grasses may all eventually be replaced by medusahead, which elimin
'/>"/>

Contact: Seema Mangla
seema.mangla@oregonstate.edu
541-737-8475
Oregon State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Barrier in mosquito midgut protects invading pathogens
2. Researchers examine plants ability to identify, block invading bacteria
3. Fish fend off invading germs with an initial response similar to the one found in people
4. Plant protein doorkeepers block invading microbes, study finds
5. Plant protein doorkeepers block invading microbes, study finds
6. How algae enslavement threatens freshwater bodies described by Hebrew University researcher
7. Oil spill threatens toothy marine predator that is cultural and historic icon
8. Climate threatens trout and salmon
9. Deadly fungus threatens 9 bat species in Ga., Ky., N.C., S.C. and Tenn., expert says
10. Global warming threatens plant diversity
11. A second hydrocarbon boom threatens the Peruvian Amazon
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/14/2014)... ATHENS, Ohio (Oct. 14, 2014)—It,s been millions of years ... but a team led by Ohio University scientists is ... to model airflow through dinosaur snouts. The research has ... not only breathe but to enhance the sense of ... pretty ,nosy, animals," said Ohio University doctoral student Jason ...
(Date:10/14/2014)... 14, 2014 – High doses of fish oil supplements, rich ... common type of irregular heartbeat in which the heart can ... of the AFFORD trial led by the Montreal Heart Institute ... of Cardiology on October 7th. , For the trial, ... were randomly assigned to 4 grams of fish oil a ...
(Date:10/14/2014)... likely takes between 10 and 20 years to ... window" of intervention if detected early, which may ... say Australian clinical researchers. , Dr Jeremy ... Institute of Medical Research, analysed medical histories and ... pancreatic cancer patients, operated on between 1994 and ...
Breaking Biology News(10 mins):Dinosaur breathing study shows that noses enhanced smelling and cooled brain 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 3Early detection window when pancreatic cancer is in the family 2
... Researchers from the University of Southampton and the Australian National ... been fast by natural standards and at current rates ... and 2.5 metres by 2200. The team used ... a background pattern of natural sea-level rise. This was compared ...
... dependence on the global food market. The Australian capital ... in its regional hinterland, while Tokyo primarily ensures its ... than half of the consumption of the most common ... food systems of capital cities, an essential insight for ...
... University of Utah Health Sciences faculty members whose ... patents, biomedical inventions, and startup companies have been ... (NAI). Carl W. Wittwer, M.D., Ph.D., professor ... Lisa Cannon-Albright, Ph.D., professor of internal medicine and ...
Cached Biology News:What the past tells us about modern sea-level rise 2Scientists map food security and self-provision of major cities 2Scientists map food security and self-provision of major cities 3Researchers named to National Academy of Inventors 2Researchers named to National Academy of Inventors 3Researchers named to National Academy of Inventors 4
(Date:10/19/2014)... 2014 The report "Chocolate, Cocoa Beans, ... Prices, Geography Trend and Forecast (2011 - 2016)," ... geography and studies the major market drivers, restraints, and ... and Asia. , The global chocolate market is expected ... in 2016 at an estimated CAGR of 2.7% from ...
(Date:10/19/2014)... 2014 According to market research ... WLAN Controllers; Wireless gateways)]- Global Advancements, Forecasts and ... global Outdoor Wi-Fi market with analysis and forecasting ... also identifies the drivers and the restrains for ... opportunities and challenges. , Browse 65 market data ...
(Date:10/18/2014)... 18, 2014 The report "1,6-Hexanediol ... and Forecasts to 2019", analyzes the global market ... to understand the industry details such as the ... various geographic regions. , Browse 81 Market Data ... and in-depth TOC on “1,6-Hexanediol Market by Application ...
(Date:10/18/2014)... The Asia-Pacific Liquid Crystal on Silicon (LCoS) ... in Asia-Pacific with analysis and forecast of revenue. This ... is expected to reach $380.0 million by 2018, at ... Browse through the TOC of the Asia-Pacific LCoS display ... analysis provided. This also provides a glimpse of the ...
Breaking Biology Technology:Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 2Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 4Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 2Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 3Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 41,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 21,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 31,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 41,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 5The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 3
... many great assets for building a thriving high technology climate, ... the University of Wisconsin-Madison . Yet we continue ... have lacked one vital ingredient: venture capital to support the ... to the National Venture Capital Association , Wisconsin, a ...
... days - from removing tattoos to playing music on ... Wisconsin, lasers have been harnessed to an entirely new ... Wisconsin-Madison mechanical engineering professor and laser expert, along with ... adapt a so-called "cold laser machining" technique, primarily used ...
... Chippewa Valley Technical College (CVTC) President Bill ... will begin teaching nanotechnology as early as September 2004 ... and opportunities. , ,Jack Uldrich, nanotechnology author, consultant and ... shift of historic proportions brought on by the manipulation ...
Cached Biology Technology:Wisconsins VC Challenge 2Wisconsins VC Challenge 3Wisconsin Engineers Devise Cutting-Edge Method to Cut Cheese 2Wisconsin Engineers Devise Cutting-Edge Method to Cut Cheese 3Chippewa Valley Embraces Nanotechnology 2
Clarin Mounting Medium (Permanent environmentally safe mounting medium for general histology & cytology use)...
IHC Zinc Fixative - , 1000 ml Consult technical datasheet for details....
Rabbit polyclonal to JNK1 (phospho T183 + Y185) ( Abpromise for all tested applications). entrezGeneID: 5599 SwissProtID: P45983...
Cytofix Buffer 100 mls...
Biology Products: