Navigation Links
Arctic snow harbors deadly assassin
Date:6/19/2011

Heavy and prolonged snowfall can bring about unexpected conditions that encourage fungal growth, leading to the death of plants in the Arctic, according to experts.

A new international study confirms that whilst snow has an insulating effect which helps plants to grow bigger, heavy and prolonged snow can, in certain circumstances, also encourage the rapid and extensive growth of killer fungal strains.

The research results, published in the journal Nature Climate Change, show for the first time the potential long term effects of unexpected fungal development on an arctic landscape. Extensive damage to a pervasive species under snowier conditions would leave gaps for another plant to take its place over time but could also alter the foodweb for insects, voles, lemmings and their predators.

Co-author of the report, Dr. Robert Baxter, School of Biological and Biomedical Sciences, Durham University, said: "We were surprised to find that this extremely hardy tundra vegetation was killed off by fungal attack.

"In the first few years, as expected, the insulating effect of the snow helped the vegetation to grow, but after six years a tipping point was reached where the fungus spread with great speed and destroyed the plants.

"We need to look more carefully in the future at longer term vegetation and fungus life cycles to see if this is something that could recur and be more destructive over time."

The research team from Durham University, UK; Ume University, the Swedish University of Agricultural Sciences, Uppsala, Sweden; and the Finnish Forest Research Institute, compared the effects of normal snowfall conditions and increased snow conditions on vegetation.

Researchers used snow fences to maintain increased snow conditions, and found that the fungus, Arwidssonia empetri, increased under heavier and prolonged snow cover killing the majority of the shoots of one of the dominant plant species in that
'/>"/>

Contact: Dionne Hamil
dionne.hamil@dur.ac.uk
44-191-334-6078
Durham University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Arctic sea ice thinning at record rate
2. FSU Historians Arctic research has him sitting on top of the world
3. First comprehensive inventory of life in Antarctica
4. ESA satellites focusing on the Arctic
5. Arctic heats up more than other places
6. Global warming threatens Antarctic sea life
7. Marine scientists to assess environment before offshore drilling begins in US arctic waters
8. CO2 drop and global cooling caused Antarctic glacier to form
9. Final frontier: Mission to explore buried ancient Antarctic lake given green light
10. UK robot sub searches for signs of melting 60 km into an Antarctic ice shelf cavity
11. Arctic governments and industry still unprepared for oil spills 20 years after Exxon Valdez
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/19/2014)... A new study shows that legume plants regulate ... cytokininssignaling molecules that are transmitted through the plant ... the number of bacteria-holding nodules in the roots. ... the National Institute for Basic Biology, the Graduate ... Center for Sustainable Resource Science in Japan. ...
(Date:9/18/2014)... into the Crimean-Congo hemorrhagic fever virus (CCHFV), a tick-borne ... similar to that caused by Ebolavirus, has identified new ... the potential to lead to novel targets for therapeutic ... reported in a paper published today in the journal ... the Texas Biomedical Research Institute and their colleagues, represents ...
(Date:9/18/2014)... that prompts millions of Americans to undertake jaunts into the ... a little longer within a century, according to new research. ... areas of the United States as summer temperatures linger later ... Global Ecology and Biogeography . For instance, the paper ... tree of New Hampshire could change color one to ...
Breaking Biology News(10 mins):For legume plants, a new route from shoot to root 2Research milestone in CCHF virus could help identify new treatments 2Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4
... interplay of brain chemicals which help us pay attention in ... By changing the way neurons respond to external stimuli we ... strength of a neuronal response, they can also affect the ... Thiele, Professor of Visual Neuroscience explains: "When you communicate with ...
... can detect molecular variants in chemical mixtures greatly ... important, though time-consuming, processes in analytical chemistry. ... post-doctoral researcher David Patterson, Professor of Physics John Doyle ... Laser Science (CFEL) in Hamburg, Germany developed a system ...
... endanger the whole organism, as they may lead to ... Munich now report how byproducts of respiration cause mispairing ... in our cells controls the form and function of ... this are encoded in the linear sequence of the ...
Cached Biology News:Detecting mirror molecules 2Detecting mirror molecules 3DNA damage: The dark side of respiration 2
(Date:9/18/2014)... D.C. (PRWEB) September 18, 2014 On ... Durbin and Sen. Jim Risch for National Lab Day ... projects from across the national laboratory system. Durbin and ... which aims to increase awareness of the reach of ... technologies and discoveries to address some of our nation's ...
(Date:9/18/2014)... 2014 Research and Markets has ... Industry Report 2014" report to their offering. ... is a professional and in-depth study on the current ... The report provides a basic overview of the industry ... human albumin market analysis is provided for the international ...
(Date:9/18/2014)... -- U.S. biotech company Kultevat has strengthened its ... developed by the Donald Danforth Plant Science Center ... applications in production of natural rubber in Taraxicum ... under the direction of Roger Beachy , Ph.D., ... the Danforth Plant Science Center, and is used to ...
(Date:9/18/2014)... Sept. 18, 2014 /PRNewswire/ - Oncothyreon Inc. (NASDAQ: ... announced concurrent but separate underwritten offerings of 10,000,000 shares ... public of $2.00 per share, for expected gross proceeds ... A Convertible Preferred Stock at a price to the ... of $20 million. Each share of Series A Convertible ...
Breaking Biology Technology:Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3Kultevat obtains license of gene switch technology 2Oncothyreon Prices $40 Million Concurrent Public Offerings of Common Stock and Preferred Stock 2Oncothyreon Prices $40 Million Concurrent Public Offerings of Common Stock and Preferred Stock 3
... - Jason Smith acknowledges he's on a personal mission. The ... of the Peak Ridge Capital Group, wants to bridge the gap ... passion for investing in innovative Midwestern technology companies is one of ... in the morning and it is one of the first things ...
... Wis. - Broadlook Technologies , an Internet ... as the firm's chief operations officer. , ,Meier brings ... sectors, and he will be responsible for helping the ... programs. , ,"I believe in Greg, and he believed ...
... Madison, Wis. - A University of Wisconsin-Madison ... return in the nation, according to BusinessWeek 's latest ... class of 2006 paid $186,800 for their MBAs and started ... even in four and a half years, not counting lost ...
Cached Biology Technology:Investor links East Coast funds to Midwest tech 2Investor links East Coast funds to Midwest tech 3UW-Madison MBA program ranked among best for investment return 2
Comp Dim: chamber diam. depth 20 2.8 mm chamber maximum volume 720 μL...
... vitro diagnostic assays, all EIA/RIA plates are ... binding, high optical clarity and low background ... of the Certified Surface Chemistry Programme, which ... QA release specifications. Linkage: This CLS number ...
... Lipid adsorption and clarification reagent; ... the purification of antibodies, proteins, nucleic ... has negligible cross-reactivity, and improves downstream ... a solid-phase, non-ionic adsorbent supplied as ...
... The lyophilization stabilizer is designed to ... and for long-term storage. There ... ingredients. It is a convenient ... 7.2, and is superior to other ...
Biology Products: