Navigation Links
AGU journal highlights -- Jan. 14, 2013
Date:1/14/2013

u.org/sciencepolicy/agu-press-subscriptions/">http://sites.agu.org/sciencepolicy/agu-press-subscriptions/.


1. Seabird activity influences Arctic methane and nitrous oxide emissions

Seabird activity is contributing significantly to methane and nitrous oxide emissions in the Arctic tundra, a new study shows. Methane emissions, which play an important role in the global carbon cycle, and nitrous oxide fluxes, a key element in the nutrient cycle, are predicted to increase in the Arctic and contribute to Arctic warming in the near future.

To study the effects of seabird activity on variations in nitrous oxide and methane fluxes from the tundra to the atmosphere, Zhu et al. compared fluxes from a seabird sanctuary and two non-seabird colonies on Ny-lesund, Svalbard, Norway. They find that seabird activity was a major factor in these emissions. Mean fluxes of nitrous oxide were about 18 micrograms per square meter per hour at the seabird sites, compared with about 8 micrograms per square meter per hour at the non-seabird tundra sites. For methane, seabird activity actually changed the tundra from a methane sink to a source: mean fluxes of methane were about 53 micrograms per square meter per hour at the seabird sites and about -83 micrograms per square meter per hour at the non-seabird sites.

The researchers considered other factors that could influence methane and nitrous oxide emissions, including soil moisture and temperature. However, they find that seabird activity was the predominant factor in controlling the flux of these gases from the tundra to the atmosphere. They conclude that sites with high seabird activity are likely to be hotspots of methane and nitrous oxide emissions.

Source: Journal of Geophysical Research-Biogeosciences, doi:10.1029/2012JG002130, 2012
http://dx.doi.org/10.1029/2012JG002130

Title: Impact of seabird activ
'/>"/>

Contact: Kate Ramsayer
202-777-7524
American Geophysical Union
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9

Related biology news :

1. Genome scientists launch Microbiome journal
2. Hass Avocado Board study published in Food & Function journal
3. Website for new open-access journal, eLife, introduced today
4. Association of Environmental Engineering and Science Professors name Environmental Engineering Science as its official journal
5. Physiological societies partner with Wiley on new open access journal
6. Elsevier launches new open access journal -- Case Studies in Engineering Failure Analysis
7. Soft Robotics: A groundbreaking new journal on engineered soft devices that Interact with Living Systems
8. Nicole George wins 2012 Journal of Experimental Biology Outstanding Paper Prize
9. The Journal of Biological Chemistry commemorates an important 1987 discovery
10. Winners named in 2012 AAAS Kavli Science Journalism Award Competition
11. Genetics Society of Americas GENETICS journal highlights for November 2012
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/10/2014)... --Research and Markets ( http://www.researchandmarkets.com/research/xclcvw/biometrics_market ) ... Market in Japan 2014-2018" report to their ... The integration of biometrics and smart ... upgradation of the driver,s license is one of ... the aforementioned projects, biometrics is being used as ...
(Date:12/3/2014)... , Dec. 2, 2014   Marvin Test ... innovative test solutions for military, aerospace, and manufacturing ... of its successful TS-900 PXI semiconductor test ... features of high-end systems to customers at a ... compared to traditional ATE. "Our ...
(Date:11/21/2014)... C-Labs LLC, a leading provider of remote ... today announced the appointment of John Traynor ... strategic advisor to the firm, Mr. Traynor will now ... based out of the C-Labs office in ... Muench , Chief Executive Officer. Photo - ...
Breaking Biology News(10 mins):Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2
... often thought of as a domesticated animal, one that may ... the wilderness of North America, are thought of as conducting ... the journal Nature Climate Change suggests that there ... and change in climate played a role in their evolution. ...
... macrophages, the immune system,s healthy scavenger cells, play a key ... other areas of the body, according to research to be ... Biology annual meeting in New Orleans. The researchers, ... Health & Science University (OHSU) in Portland followed the work ...
... in Alzheimer,s disease (AD) has focused on whether the protein ... cause of the disease. But George Bloom, Ph.D., and ... hypothesis: much earlier interactions between the two proteins them drive ... (CCR). Dr. Bloom will present additional evidence supporting ...
Cached Biology News:Climate change will endanger caribou habitat, study says 2Spontaneous fusion with macrophages empowers cancer cells to spread 2Uncovering first molecular missteps that drive neurons in pathway leading to Alzheimer's disease 2
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... Genzyme Corporation and Middleton-based Bone Care International Inc. ... fast-tracked their proposed merger. , ,Genzyme and Bone Care have ... Bone Care in an all-cash transaction valued at $33.00 per ... approval by Bone Care's shareholders at a meeting ...
... 151 bypass around Fond du Lac, Wis., opens later ... on a bridge like no other in the country. ... could help to speed bridge-deck construction Externally, the ... the concrete deck reinforced with a novel fiber-reinforced polymer ...
... Commitment. These are the 4 C's that I learned early ... always felt that each "C" was equally important; the folks ... with thick wallets, and so forth. Until a few weeks ... for an organization I love. It was exhilarating: we addressed ...
Cached Biology Technology:Polymer grid technology a boon for bridges 2Polymer grid technology a boon for bridges 3Are boards broken? 2
... Partek Genomics Solution is a comprehensive ... data visualization specifically designed to reliably ... for high-dimensional genomic studies containing thousands ... fast, memory efficient and will analyze ...
Kit contains: Bio-Rad Amplification Reagent, 2x Amplification Diluent, Streptavidin-HRP, Blocking Reagent, and Phosphate Buffered Saline....
These macrocarriers are for the biolistic PDS-1000 He and Hepta systems. Supplied as 500 macrocarriers....
Intestinal Epithelium Differentiation Environment...
Biology Products: