Navigation Links
Lichens function as indicators of nitrogen pollution in forests
Date:10/6/2008

Scientists have found lichens can give insight into nitrogen air pollution effects on Sierra Nevada and San Bernardino mountain ecosystems, and protecting them provides safeguards for less sensitive species.

Their findings are presented this month in the international journal Environmental Pollution and are significant because nitrogen from air pollution causes detrimental chemical and biological effects to terrestrial and aquatic ecosystems. Other harmful effects include elevated nitrate concentrations in streams and groundwater, and weakened California forests more susceptible to bark beetle infestations and fires.

The U.S. Forest Service funded the study, which included the agency's own researchers working with scientists at the University of Arizona and Spain's National Research Center for Energy, Environment and Technology.

According to the scientists, nitrogen pollution that has virtually eliminated lichen species in the Los Angeles Basin and San Bernardino Mountains is now exceeding critical loads over much of the Western Sierra Nevada as far north as Lake Tahoe. Other areas in corridors of polluted air such as the Central Valley are also exceeding nitrogen critical loads.

"Publicity surrounds the carbon cycle and its effects on the environment, but humans have altered the global nitrogen cycle to a greater degree," said Mark Fenn, a Forest Service plant pathologist and one of the study's authors. "There are now significant changes in lichen indicator groups because nitrogen critical loads are being exceeded over much of California."

Scientists involved in the research studied 24 mixed-conifer forest sites exposed to a wide range of atmospheric nitrogen deposition and monitored adverse changes in lichens, among the most sensitive biological indicators of nitrogen effects.

The result is a useful tool for determining critical loads and preventing broader impacts to forests. Protecting lichens also has inherent value bec
'/>"/>

Contact: Roland Giller
rgiller@fs.fed.us
510-559-6327
US Forest Service, Pacific Southwest Research Station
Source:Eurekalert

Page: 1 2

Related biology news :

1. Technical report explores role of lichens as bioindicators
2. Iron-moving malfunction may underlie neurodegenerative diseases, aging
3. US Air Force technology helps scientists understand plant root function
4. New insights into the regulation of PTEN tumor suppression function
5. Ikaria(R) Receives FDA Orphan Drug Designation for Inhaled Carbon Monoxide for Delayed Graft Function in Solid Organ Transplants
6. In scientific first, Einstein researchers correct decline in organ function associated with old age
7. GIANT-Coli: A novel method to quicken discovery of gene function
8. Chronic exposure to estrogen impairs some cognitive functions
9. Ikaria(R) Receives FDA Orphan Drug Designation for Inhaled Carbon Monoxide for Delayed Graft Function in Solid Organ Transplants
10. Researchers analyze how new anti-MRSA abtibiotics function
11. UCLA researchers clarify function of glucose transport molecule
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/18/2014)... -- The Parenteral Drug Association (PDA) today confirmed that seven ... at least seven more will participate in the upcoming 2014 ... in Washington D.C. , Dec. 2-4. ... from the regulatory agencies in the United States ... effort to help advance the use of metrics in the ...
(Date:11/12/2014)... PALM BEACH GARDENS, Fla. , Nov. 12, 2014 ... management solutions, announced today that its U.are.U ® ... upscale retail bakery chain in Central Mexico ... solution in June 2014 to eliminate payroll issues caused ... Prior to installing the U.are.U fingerprint readers, Montparnasse ...
(Date:11/7/2014)... Dr. Debra Auguste, associate professor, biomedical engineering, in ... College of New York, have identified a molecule ... of the most aggressive forms of breast cancer. ... high mortality rate owing to aggressive proliferation and ... However, Professor Auguste,s team, discovered the overexpression of ...
Breaking Biology News(10 mins):FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2
... NEW YORK , Aug. 16, 2013   EyeLock Inc. , a ... of Roger An as Vice President of Global ... for research, analysis and strategic initiatives to further the embedded ... a heavy focus on Asia .   ...
... 2013) Primary results from a new clinical ... treated with the monoclonal antibody teplizumab (MacroGenics, Inc.) ... islet cell function, compared to controls. Further analyses ... that demonstrated especially robust responses ("responders"), suggesting that ...
... body is a complicated system of blood vessels, nerves, organs, ... When all are working together, it,s a symphony of form ... Biologist Rejji Kuruvilla and her fellow researchers uncovered what happens ... along with graduate students Philip Borden and Jessica Houtz, both ...
Cached Biology News:EyeLock Appoints Roger An Vice President of Global Market Development 2EyeLock Appoints Roger An Vice President of Global Market Development 3ITN type 1 diabetes study identifies subset of patients with strong response to therapy 2ITN type 1 diabetes study identifies subset of patients with strong response to therapy 3Sympathetic neurons 'cross talk' with pancreas cells during early development 2Sympathetic neurons 'cross talk' with pancreas cells during early development 3
(Date:11/24/2014)... November 24, 2014   ... ScienceDirect   Elsevier , a world-leading provider ... pleased to announce the launch of the latest title in ... Current Opinion in Food Science . ... specialists with a new platform to keep up-to-date with the ...
(Date:11/24/2014)... 24, 2014 The new video, ... METTLER TOLEDO demonstrates how to reduce the number ... and sample panel design can be complicated, requiring ... protect against corrosion and deposition. Dedicated single and ... amount of panel space. Additionally, installing and maintaining ...
(Date:11/22/2014)... During his lifetime Richard L. Sharp was a ... with great people and take risks to achieve success. ... at his extraordinarily courageous attitude when taking on challenges. ... with his death impending—that’s how he continued looking for ... take his life. , Carrying on Sharp’s relentless dream ...
(Date:11/22/2014)... The “Chiral Chromatography Columns Market by ... Glass, Plastic), by Application [GC, LC (HPLC, UHPLC, ... 2018” analyses and studies the major market drivers, ... Asia, and Rest of the World. , Browse ... through 135 pages and in-depth TOC on “Chiral ...
Breaking Biology Technology:Elsevier Announces Launch of New Journal: Current Opinion in Food Science 2Elsevier Announces Launch of New Journal: Current Opinion in Food Science 3New Video Shows How to Simplify Cycle Chemistry Sample Panels to Save Time and Costs 2Sherry Sharp, Wife of CarMax Founder, Richard Sharp, Accepts Seat on Board of Cure Alzheimer’s Fund 2Sherry Sharp, Wife of CarMax Founder, Richard Sharp, Accepts Seat on Board of Cure Alzheimer’s Fund 3Chiral Chromatography Columns Market worth $87.8 Million by 2018 - New Research Report by MarketsandMarkets 2Chiral Chromatography Columns Market worth $87.8 Million by 2018 - New Research Report by MarketsandMarkets 3Chiral Chromatography Columns Market worth $87.8 Million by 2018 - New Research Report by MarketsandMarkets 4Chiral Chromatography Columns Market worth $87.8 Million by 2018 - New Research Report by MarketsandMarkets 5
... (GFP) in their retina cells or other tissues can ... real time computer record of movement and gene expression. ... BMC Biotechnology , will allow detailed analyses of ... Tower led a team of researchers from the University ...
... Washington Life Sciences Discovery,Fund (LSDF) has awarded nearly $4.7 ... Alliance (WAVA) and to support initial research into,three new ... the,grant is funded by Washington,s$350 million tobacco-lawsuit-settlement bonus,and provides ... , WAVA core ...
... Office has,issued Nutraceutix, Inc. a patent for BIO-tract. It ... the technology has been awarded based,on BIO-tract,s ability to ... their way to optimal release sites in the,intestinal tract. ... Nutraceutix comments: "Many years ago,we recognized the need for ...
Cached Biology Technology:Life Sciences Discovery Fund Awards $4.7 Million to Support New Vaccine Program 2Life Sciences Discovery Fund Awards $4.7 Million to Support New Vaccine Program 3Life Sciences Discovery Fund Awards $4.7 Million to Support New Vaccine Program 4Probiotic Delivery Technology Awarded Third International Patent 2
... designed for immunological studies, vaccine development, ... flexible and powerful Paraflo microfluidic on-chip ... as part of our comprehensive Epitope ... Probe Content Probe content is ...
... Peptide microarrays containing peptidomimetics built on ... on-chip synthesis platform. These microarrays are ... Custom Peptide Microarray Service. ... is completely customer specified. Thousands of ...
... our Regulatory Edition of Molecular Imaging (MI) ... for life science research and drug discovery ... with U.S. Food and Drug Administrations Code ... Electronic Records; Electronic Signatures [21 CFR Part ...
... Now, for the first time, you ... faster and more efficiently without interferences. The ... to remove unwanted, multiple high-abundant proteins from ... with just one device. With this ...
Biology Products: