Navigation Links
Slight changes in climate may trigger abrupt ecosystem responses
Date:1/16/2009

Some of these responses, including insect outbreaks, wildfire, and forest dieback, may adversely affect people as well as ecosystems and their plants and animals.

The U.S. Geological Survey led a new assessment of the implications of a warming world on "ecological thresholds" in North America. The report, which was commissioned by the U.S. Climate Change Science Program and authored by a team of federal and academic climate scientists, is based on a synthesis of published scientific literature and addresses what research and steps are needed to help mitigate resulting effects.

An ecological threshold is the point at which there is an abrupt change in an ecosystem that produces large, persistent and potentially irreversible changes.

"One of our biggest concerns is that once an ecological threshold is crossed, the ecosystem in question will most likely not return to its previous state," said USGS Associate Director for Biology Susan Haseltine. "The existence of thresholds should be a key concern of scientists and natural resource managers."

The team also emphasized that human actions may increase an ecosystem's potential for crossing ecological thresholds. For example, additional human use of water in a watershed experiencing drought could trigger basic changes in aquatic life that may not be reversible. Researchers and decision makers need to develop the tools necessary to predict the effects of specific ecological disturbances and to understand early warning signals of impending ecological thresholds.

The report also concludes that although not enough is known about ecological thresholds, researchers do already know that ecosystems will differ significantly in their respective thresholds. More vulnerable ecosystems, such as those that already face stressors other than climate change, will almost certainly reach their threshold for abrupt change sooner.


'/>"/>

Contact: Colleen Charles
colleen_charles@usgs.gov
703-648-4110
United States Geological Survey
Source:Eurekalert

Page: 1

Related biology news :

1. Chesapeake Bay ecosystem health remains poor, but slightly improved in 2007
2. Old developmental pathways spawn revolutionary evolutionary changes
3. New study shows fish respond quickly to changes in mercury deposition
4. New study shows fish respond quickly to changes in mercury deposition
5. Great Plains historical stability vulnerable to future changes
6. New technique reveals subtle force-induced changes in biomolecules conformation
7. Tolerance to inhalants may be caused by changes in gene expression
8. A new explanation for evolutionary changes in genetic sex-determination systems
9. Hearing changes how we perceive gender
10. UC Davis bird-flu expert calls for changes in early-warning system
11. Elevated carbon dioxide changes soil microbe mix below plants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/30/2014)... Scientists studying the potential effects of climate change ... focusing on the wrong factors, according to a ... Wildlife Conservation Society, University of Queensland, and other ... conservation science is missing the point when it ... majority of climate change scientists focus on the ...
(Date:7/30/2014)... its new relationship with the International College of Neuropsychopharmacology ... to publish International Journal of Neuropsychopharmacology ( ... Frazer, Editor-in-Chief of IJNP said, "Our belief ... further facilitate the goal for the IJNP ... neuropsychopharmacology. The conversion of the IJNP to ...
(Date:7/30/2014)... ALBANY, New York , July 30, 2014 ... up-to-date research on Global Government Biometric Systems ... Analysis. The Global Biometric Systems Market ... global biometric systems market over the next ten ... industry, using detailed market size forecasts. ...
Breaking Biology News(10 mins):Conservation scientists asking wrong questions on climate change impacts on wildlife 2OUP to partner with the International College of Neuropsychopharmacology 2Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 2Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 3Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 4Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 5Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 6Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 7Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 8Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 9Global Government Biometric Systems Market Size, Share, Trends and Forecasts 2014-2024 Available Online by Researchmoz.us 10
... majority of the abstracts to be presented at the EORTC-NCI-AACR [1] ... two weeks before the meeting at 00.01 hrs CET on Friday ... Journalists are free to report on the online abstracts from ... they should bear in mind that all the abstracts had to ...
... Richmond, Va. (Oct. 27, 2010) If you ... A recent study conducted by researchers from Virginia Commonwealth ... cancer patients who were eligible for genetic testing never ... relative,s life. The research, "Exploring Hereditary Cancer ...
... SHORES, Calif., Oct. 27 ... ... --> ... var first_result; // Results are keyed by longUrl, so we need to grab the first one. for (var r ...
Cached Biology News:Abstracts for the EORTC-NCI-AACR Symposium in Berlin go up online on Friday, Oct. 29 2Knowledge of genetic cancer risks often dies with patients, finds VCU Massey Cancer Center 2CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 2CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 3CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 4CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 5CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 6CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 7CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 8CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 9CIC Announces Upcoming Webinar: Insurance Consumer Expectations; Customer Experience & Self-Service Will Hit New Highs in 2011! The Role eSignatures Will Play in Meeting that Demand 10
(Date:7/30/2014)... , July 30, 2014 Regulus ... biopharmaceutical company leading the discovery and development of innovative ... financial results and highlights for the quarter ended June ... U.S. financial markets close. Regulus will ... 6, 2014, at 5:00 pm Eastern Daylight Time to ...
(Date:7/30/2014)... TARRYTOWN, N.Y. and PARIS ... REGN) and Sanofi (EURONEXT: SAN and NYSE: SNY) today ... Food and Drug Administration (FDA) rare pediatric disease priority ... (BLA) submission for alirocumab.  The priority review voucher entitles ... which provides for an expedited 6-month review from the ...
(Date:7/30/2014)... W. R. Grace & Co. (NYSE: ... REVELERIS® Prep purification system , a dual-mode instrument ... researchers to perform both flash and preparative liquid ... the REVELERIS® Prep purification system, researchers can easily ... a simple touch of the screen, giving them ...
(Date:7/30/2014)... , July 30, 2014  Decision Resources ... and medical directors in the United ... of biosimilar market penetration will be the level ... (MCOs) and the expected lower cost to patients. ... biosimilars that meet their pricing expectations in order ...
Breaking Biology Technology:Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 2Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 3Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 2Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 3Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 4Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 5Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 6Grace Launches New REVELERIS® Prep Purification System 2Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 2Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 3
... and aesthetic plastic surgeryMEDFORD, Mass., Feb. 25 ... device company developing silk-based biomaterial platforms for ... 510(k) clearance from the U.S. Food and ... (TM) silk-based, long term bioresorbable scaffold technology."We ...
... Technologies Inc. (IVT), a vaccine development company, has ... of Allergy and Infectious Diseases (NIAID) at the ... The research collaboration involves formulating NIAID antigens in ... vaccines for HIV and malaria. , "NIAID is ...
... results for the year ending 31,December 2008. , , 2008 ... intravenous iclaprim in US, - Restructuring and focus ... II trial with oral, iclaprim, ... Share placing, Cash and financial investments of CHF 38.7 million ...
Cached Biology Technology:Serica Technologies Receives FDA 510(k) Clearance for SeriScaffold(TM) Technology for Soft Tissue Repair 2Serica Technologies Receives FDA 510(k) Clearance for SeriScaffold(TM) Technology for Soft Tissue Repair 3Serica Technologies Receives FDA 510(k) Clearance for SeriScaffold(TM) Technology for Soft Tissue Repair 4ImmunoVaccine Technologies Signs Agreement with National Institutes of Health to Explore Vaccines for HIV and Malaria 2Arpida Announces Full Year 2008 Financial Results 2Arpida Announces Full Year 2008 Financial Results 3Arpida Announces Full Year 2008 Financial Results 4Arpida Announces Full Year 2008 Financial Results 5
Rab 3 Immunogen: Synthetic peptide corresponding to the N-terminal region of Rab 3 protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
...
Mouse monoclonal [2G1] to Vancomycin ( Abpromise for all tested applications)....
Rab1A...
Biology Products: