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:2/5/2015)... 2015 Research and Markets ( ... "Global Biometrics Market (2014-2020): Market Forecast By ... report to their offering. , ... is anticipated to overtake North ... government spending towards IT security, government biometric based ...
(Date:1/22/2015)... Jan. 9, 2015 Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ON), ... general the State of Washington,s Department ... new enrollment and central issuance system for driver,s licenses and ... The project planning and development will start in January 2015, ...
(Date:1/22/2015)... , Jan. 15, 2015  BellBrook Labs, a ... discovery, announced the launch of a TR-FRET (time ... company,s Transcreener UDP Assay, a high throughput screening ... new assay will allow for sensitive detection of ...
Breaking Biology News(10 mins):Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 2Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 3Valid USA Signs Contract For Washington Driver's License Issuance 2BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2
... of 22 young European scientists selected for excellence in ... scientists join a growing network of more than 300 ... have the potential to be tomorrow,s life science leaders," ... the Young Investigator Programme. "They are already active contributors ...
... to understand the cell and how it organizes internally. ... biophysicist Professor Erwin Frey, who is also a member ... is working with his group on one particular issue ... and biological physics and his team, Louis Reese and ...
... sea creatures will have to travel large distances to ... particularly in the Indian Ocean, the Western and Eastern ... to adapt or relocate to escape extinction, according to ... published in the journal Science . "Our ...
Cached Biology News:22 young researchers join the 2011 EMBO Young Investigator Program 2Attention! End of traffic jam! 2Sea life 'must swim faster to survive' 2Sea life 'must swim faster to survive' 3
(Date:3/2/2015)... Sterlitech is proud to debut its multi-line, ... 2015 AMTA Membrane Technology Conference in Orlando. This ... of engineering and customer feedback, which has resulted in ... applications across an array of disciplines. It is ... needs of researchers and engineers alike and is ideal ...
(Date:2/27/2015)... Halifax, Nova Scotia (PRWEB) February 27, 2015 ... has been made aware of a fraudulent press release ... GlobeNewswire, purporting to be from Immunovaccine. This press release ... with Gilead Science, Inc. The press release did ... to the information contained within the press release. ...
(Date:2/27/2015)... 27, 2015 Immunovaccine Inc. (“Immunovaccine”) ... company, today announced that the U.S. Food and ... Track designation and Phase I clinical trials of ... the mutual co-development agreement signed with Gilead Life ... designation for the DPX-Survivac. , “We have been ...
(Date:2/27/2015)... Cytokinetics, Incorporated (Nasdaq: CYTK) announced today ... patients and health care advocates in the United States ... Rare Disease Day is dedicated to elevating public ... special challenges faced by patients with rare diseases and ... to stand alongside patients and caregivers representing the rare ...
Breaking Biology Technology:Sterlitech Displays Complete CF042 Membrane Test System 2Immunovaccine Disclaims Hoax Press Release 2Immunovaccine Inc. (TSX: IMV) receives Fast Track and Phase I trial approval for Ebola and Anthrax vaccine programs, signs co-development agreement with Gilead Sciences 2Immunovaccine Inc. (TSX: IMV) receives Fast Track and Phase I trial approval for Ebola and Anthrax vaccine programs, signs co-development agreement with Gilead Sciences 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 6
...  Rhythm announced today that Lex Van der Ploeg, PhD, ... Van der Ploeg brings to Rhythm more than 25 ... and other therapeutic areas. "Lex has considerable ... pathways we are targeting with our ghrelin and melanocortin ...
... for Nanotechnology (LCN) have discovered electronic stripes, called ,charge ... that make up a graphitic superconductor. This is the ... and the finding is likely to have profound implications ... scientists believe will play a key role in the ...
... /PRNewswire-iReach/ --  Quantum Leap Innovations announced today the ... Directors.  Michael Cusumano is the Sloan Management Review Distinguished ... Sloan School of Management, with a joint appointment in ... STAYING POWER , covers six enduring principles for ...
Cached Biology Technology:Rhythm Names Lex Van der Ploeg Chief Scientific Officer 2Graphene earns its stripes 2Michael Cusumano, MIT's Sloan Distinguished Professor of Management, Joins Quantum Leap Innovations Board of Directors 2Michael Cusumano, MIT's Sloan Distinguished Professor of Management, Joins Quantum Leap Innovations Board of Directors 3Michael Cusumano, MIT's Sloan Distinguished Professor of Management, Joins Quantum Leap Innovations Board of Directors 4
... The Jouan B4i ventilated and BR4i refrigerated ... and low speed operation at a low sound ... accessories certified for biocontainment. Their AUTO-LOCK rotor exchange ... is ready for use within seconds. ...
Sterile, individually wrapped, 4mm Cuvettes...
... LCMS-2010EV is a fully flexible quadrupole MS ... HPLC, high-speed HPLC, 1-D and 2-D LC, ... separations. It incorporates a drying gas system ... high sensitivity, especially for low-to-medium polarity compounds, ...
Vapor phase risers are available in various heights to accomodate a variety of inventory solutions. Risers are used to creat a false bottom in which the tanks platform rests and Liquid nitrogen is s...
Biology Products: