Navigation Links
Scientists report dramatic carbon loss from massive Arctic wildfire
Date:7/28/2011

In a study published in this week's issue of Nature, Marine Biological Laboratory (MBL) senior scientist Gauis Shaver and his colleagues, including lead author Michelle Mack of the University of Florida, describe the dramatic impacts of a massive Arctic wildfire on carbon releases to the atmosphere. The 2007 blaze on the North Slope of the Alaska's Brooks Mountain Range released 20 times more carbon to the atmosphere than what is annually lost from undisturbed tundra.

As wildfires increase in frequency and size along Alaska's North Slope, the team contends the disturbances may release large amounts of the greenhouse gas CO2 to the atmosphere and accelerate the transformation of the frozen, treeless tundra of today into a different kind of ecosystem less capable of storing carbon. Together, the impacts could have profound implications on atmospheric carbon and climate.

Arctic tundra landscapes store huge amounts of carbon in cool, wet soils that are insulated by a layer of permanently frozen ground, or permafrost. Fire has been almost nonexistent in Alaska's North Slope for thousands of years and the effect of fires on the carbon balance of tundra ecosystems is largely unknown. However, with warming temperatures over the past half-century, the climate in the region is in transition, spurring more thunderstorms, lightning, and wildfires.

In 2007 the Anaktuvuk River fire ravaged a 40-by-10 mile swath of tundra about 24 miles north of Toolik Field Station, where Shaver is the principal investigator of the NSF's Arctic Long-Term Ecological Research project. The blaze was the largest ever recorded in the region.

While the Anaktuvuk River fire scorched only upper soil layers that are about 50 years old, it caused the release of more than two million metric tons of CO2 to the atmosphere. This amount is similar in magnitude to the annual carbon sink for the entire Arctic tundra biome averaged over the last quarter of th
'/>"/>

Contact: Diana Kenney
dkenney@mbl.edu
508-289-7139
Marine Biological Laboratory
Source:Eurekalert

Page: 1 2

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/16/2014)... have challenged conventional thinking on how the bowel lining ... for how bowel cancer starts. , The researchers produced ... regenerating the ,crypts, that are a feature of the ... in bowel cancer development, a controversial finding as scientists ... Using 3D imaging technologies, Dr Chin Wee Tan and ...
(Date:10/16/2014)... , October 16, 2014 NXT-ID, Inc. (NASDAQ: ... "Company"), a biometric authentication company focused on the growing ... edge technologies including Wocket™, the Smart Wallet, at the ... FiRe is a leading global conference on the intersection ... by Mark Anderson , founder and publisher of ...
(Date:10/15/2014)... has admitted Johannes Gutenberg University Mainz (JGU) as ... hub continues to maintain a significant nationwide standing ... "The acceptance of Johannes Gutenberg University Mainz as ... milestone in the national and international competition for ... of Rhineland-Palatinate can be proud that Mainz University ...
Breaking Biology News(10 mins):Cryptic clues drive new theory of bowel cancer development 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3
... West Indian tarantula has been shown to cause pain ... sense high temperatures and the hot, spicy ingredient in ... demonstrate that some plants and animals have evolved the ... by activating a specific receptor on sensory nerves. The ...
... gardener knows--different plant species mature at different times. ... this phenomenon "complementarity." It allows many species to ... period when species compete for limited resources. Now, ... Sept. 4 in the Proceedings of the National ...
... the limb regrows. What is more, a newt can also ... Planck Institute for Heart and Lung Research in Bad Nauheim ... impressive ability to regenerate and have discovered the remarkable plasticity ... do not have this ability, the findings could contribute to ...
Cached Biology News:Tarantula venom and chili peppers target same pain sensor 2Global changes alter the timing of plant growth, scientists say 2Global changes alter the timing of plant growth, scientists say 3Newts which regrow their hearts 2
(Date:10/25/2014)... , October 24, 2014 Investor-Edge ... (NASDAQ: CYTR ), Vertex Pharmaceuticals Inc. (NASDAQ: ... ALXN ), Peregrine Pharmaceuticals Inc. (NASDAQ: ... on these five companies can be accessed at: ... October 23, 2014, ended on a positive note as ...
(Date:10/25/2014)... , October 24, 2014 ... Markets ( http://www.researchandmarkets.com/research/t5t5pd/the_global_market ) has announced the addition ... Nanotubes, Graphene And Other 2-D Nanomaterials " ... (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ,CNTs and graphene are ... known to man, with a performance-per-weight greater ...
(Date:10/22/2014)... , Oct. 22, 2014 Research ... the "Global DNA Diagnostics Market (Product types, ... Share, Global Trends, Company Profiles, Demand, Insights, Analysis, ... 2020" report to their offering. ... (products, applications, techniques, end users and Geography) Global ...
(Date:10/22/2014)... The Americas Inorganic Refrigerants Market report ... Americas with analysis and forecast of revenue. , ... Refrigerants Market report, to get an idea of ... glimpse of the segmentation in the Americas inorganic ... and figures. , http://www.micromarketmonitor.com/market/americas-inorganic-refrigerants-4191654241.html , ...
Breaking Biology Technology:Biotech Stocks Technical Data - CytRx, Vertex Pharma, Alexion Pharma, Peregrine Pharma, and StemCells 2Biotech Stocks Technical Data - CytRx, Vertex Pharma, Alexion Pharma, Peregrine Pharma, and StemCells 3Biotech Stocks Technical Data - CytRx, Vertex Pharma, Alexion Pharma, Peregrine Pharma, and StemCells 4Biotech Stocks Technical Data - CytRx, Vertex Pharma, Alexion Pharma, Peregrine Pharma, and StemCells 5The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 2The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 3The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 4Global DNA Diagnostics Market (Product types, Application, Technology, End User and Geography) - Forecast to 2020 2Global DNA Diagnostics Market (Product types, Application, Technology, End User and Geography) - Forecast to 2020 3The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 2The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 3
... Switzerland, August 19 Arpida Ltd,(SIX: ARPN) announced today its financial results ... Key events 2009 to date, - Regulatory setback for ... under review, - Company restructuring completed, , ... June 2009 , CFO Harry Welten, MBA, commented: ...
... , WESTON, Fla., Aug. 19 In keeping with ... of families, America n Scientific Resources ... obtained from Safeguard Medical Technologies, LLC exclusive worldwide rights to sell ... and the Disintegrator Plus(TM). , , All ...
... , , LONDON, Aug. 19 ... the introduction of improved drugs to treat the disease. As healthcare ... companies conducting research on diabetes vaccines. If they succeed, the entire ... (Logo: http://www.newscom.com/cgi-bin/prnh/20081117/FSLOGO ) , , ...
Cached Biology Technology:Arpida Reports Interim Results For Six Months to 30 June 2009 2American Scientific Resources To Be Exclusive Seller of World's Only FDA Approved Home Needle Destruction Device 2American Scientific Resources To Be Exclusive Seller of World's Only FDA Approved Home Needle Destruction Device 3Emergence of Newer Drug Classes to Treat Diabetes and Co-morbidities Key to Market Expansion, Reveals Frost & Sullivan 2Emergence of Newer Drug Classes to Treat Diabetes and Co-morbidities Key to Market Expansion, Reveals Frost & Sullivan 3
... fluorescein-conjugated jetSI-ENDO (excitation at ... nm), the powerful siRNA transfection ... to determine the transfection efficiency ... and trafficking of siRNAs. More ...
... of long double stranded RNA (dsRNA) has ... a diverse group of organisms as well ... leads to the inhibition of protein expression ... target messenger RNA (mRNA). Attempts to induce ...
... lower cost and reduced space requirements ... reference standard DNA analysis technology affordable ... with any of SEQUENOM's applications and ... (iPLEXTM Gold) , Gene Expression Analysis ...
... Bruker Daltonics and Bruker BioSpins Metabolic ... metabolism studies, and analysis of complex ... system, an optional Avance NMR spectrometer ... evaluation and statistical analysis for applications ...
Biology Products: