Navigation Links
Sudden 'ecosystem flips' imperil world's poorest regions, say water experts
Date:4/2/2008

ifficult or even impossible to reverse.

According to Peterson, recent outbreaks of toxic algae blooms in Quebec lakes and off Swedens Baltic Sea coast are prime examples of ecosystem flips, the consequence of nutrients from fertilizers permeating the soil and running off into streams, lakes and oceans.

As you get more and more nutrients in the soil you eventually get to a point where you can even completely stop farming and all the nutrients will still be there, explained Bennett, an assistant professor at McGill's Department of Natural Resource Sciences and the School of Environment. You go past a tipping point where its very difficult to reverse.

Ecosystem flips can have significant and sometimes devastating effects on human well-being, as global populations suddenly lose resources they are dependent on, said the researchers. Some of the most vulnerable areas on Earth are places like the drylands of sub-Saharan Africa.

In some of these regions we risk two types of ecosystem flips, one that causes rapid soil degradation with dramatic effects on yields and farmers' livelihoods, and another that affects rainfall and therefore also vegetation growth, Gordon said.

These are the places where populations are growing the fastest, people have the least amount of water per capita and are the poorest of any of the biomes of the world. They are also the regions most likely to be affected by climate change, Peterson added.

As global demands for agriculture and water continue to grow, concluded the authors, it is increasingly urgent for scientists and managers to develop new ways to build resilience by anticipating, analyzing and managing changes in agricultural landscapes. Managing the green water component of the hydrological cycle is also important, as well as encouraging more diverse agricultural practices.

Regime shifts a key issue at the Resilience2008 Conference, Stockholm Sweden, April 14-17 2008

<
'/>"/>
Contact: Mark Shainblum
mark.shainblum@mcgill.ca
514-398-2189
McGill University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Small desert beetle found to engineer ecosystems
2. Faster koa tree growth without adverse ecosystem effects
3. Small streams mitigate human influence on coastal ecosystems
4. Lowly Icelandic midges reveal ecosystems tipping points
5. Rats on islands disrupt ecosystems from land to sea, researchers find
6. Adapting local ecosystems can soften impact of global climate change
7. The art of using science to inform ecosystem restoration in Puget Sound
8. Map is first to track global human influences on ocean ecosystems
9. First map of threats to marine ecosystems shows all the worlds oceans are affected
10. Scientists outline novel approach to ecosystem management
11. Nonlinear ecosystem response points to environmental solutions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/5/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company"), ... market, reminds investors and media that  Mr. David Tunnell ... SECURE CONNEXIONS AMERICA 2015, held in Washington DC ... conference is organized into a series of nine session tracks. ... Fraud: Where is the Trust in Cyberspace? and will ...
(Date:4/20/2015)... April 20, 2015 Huntington Memorial Hospital is ... implant a new miniaturized, wireless monitoring sensor to manage ... first and only FDA-approved heart failure monitoring device that ... used by physicians to manage heart failure. ... implanted in the pulmonary artery (PA) during a non-surgical ...
(Date:4/13/2015)... YORK , April 13, 2015 ... by TechSci Research, "Global Biometrics Market Forecast & Opportunities, ... register a CAGR of around 14% till 2020. ... governments for large scale implementation and review of ... and launch of new products with greater efficiency, ...
Breaking Biology News(10 mins):NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 2NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 3Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2
... visiting researcher from Sweden in the Indiana University College of ... in culturing, characterizing and formally naming a new class of ... from environmental samples. ,Structures on Roots ... Soil Clone Group 1 (SCG1), has now been found in ...
... New research led by scientists from Imperial College London explains ... phase, of symptoms several hours after exposure to allergens. The ... to better treatments for the disease. An estimated 300 ... Symptoms are commonly triggered by allergens in the environment, such ...
... A thriving undersea wildlife park tucked away near the southern ... world,s most robust marine reserve in the world, according to ... Oceanography at UC San Diego. Results of a ... the Public Library of Science (PLoS) ONE journal, ...
Cached Biology News:Visiting researcher at IU leads international team in formal identification of new fungi class 2Visiting researcher at IU leads international team in formal identification of new fungi class 3Study sheds light on late phase of asthma attacks 2Hidden Baja undersea park is the world's most robust marine reserve 2Hidden Baja undersea park is the world's most robust marine reserve 3
(Date:5/28/2015)... 2015 Global futurist and keynote ... ask his audiences if they are ready for ... solar cells, fuel cells, rapid health care diagnostic ... storage technology, driverless cars, artificial intelligence masquerading as ... online education. , While the majority of ...
(Date:5/27/2015)... -- The Companion Diagnostics Deals and Alliances of 2014 ... the partnering deals and agreements entered into by ... Using these reports, dealmakers will effectively and ... the past year. The report series allows you ... announced worldwide.The initial chapters of this report provide ...
(Date:5/27/2015)... Expanding in a big way into the Japanese ... recently inked a deal with Arthur Mokuda, president ... the largest endodontic distributor in Japan. The move represents ... Biomed, which manufactures Grey MTA Plus® and the newly ... have won renown from dentists around the world. , ...
(Date:5/27/2015)... , May 27, 2015  CytomX, a ... of cancer, today announced the appointments of ... Cynthia Ladd as senior vice president ... was chief financial officer of Onyx Pharmaceuticals, an ... independent consultant and legal counsel to several leading ...
Breaking Biology Technology:Futurist Jack Uldrich to Deliver 4 Keynote Addresses in June 2Companion Diagnostics Deals and Alliances of 2014 2Dental Manufacturer Avalon Biomed Inks Major Deal with Japanese Distributor 2Dental Manufacturer Avalon Biomed Inks Major Deal with Japanese Distributor 3CytomX Expands Executive Leadership Team 2CytomX Expands Executive Leadership Team 3
... Technologies,Corporation,s (OTC Bulletin Board: CNVT) holding BIOREM announced the,receipt ... China for a,Biofiltair odor control system. This order for ... (Cdn) and is the third order,received from China over ... our technology was accepted on these projects,",said Peter Bruijns, ...
... RDEA ) today announced that its President and ... the "In Search of the,Next HIV Treatment" panel discussion ... December 12, 2007 at 1:30 p.m. (ET) at,the Westin ... audio webcast of the,presentation and panel discussion will be ...
... North America with this Elevated Partner ... ... System,Integrator, today announced it has achieved Oracle Certified Advantage,Partner status in the ... level in the Oracle PartnerNetwork -- BIAS had,to demonstrate superior product knowledge ...
Cached Biology Technology:CVF Technologies Corporation's Holding - BIOREM Announces 3rd Order from China 2Ardea Biosciences to Participate in RBC Capital Markets 2007 Healthcare Conference 2Ardea Biosciences to Participate in RBC Capital Markets 2007 Healthcare Conference 3BIAS Achieves Certified Advantage Partner Level in Oracle PartnerNetwork 2BIAS Achieves Certified Advantage Partner Level in Oracle PartnerNetwork 3
... four-bay DNA Engine Tetrad 2 thermal ... Alpha units (sample-holder, heat-pump assemblies), which ... vessels. A Pentium-class computer drives an ... block, sample, and lid temperatures. Peltier ...
Printer paper for Model 680 series readers is used with the thermal printers of the Model 680 and Model 680 XR microplate readers. Supplied as 2 rolls....
... multi-cell is for 2-D separations. The cell has ... PROTEAN II xi multi-cell can be customized for ... plates, and cooling system. The PROTEAN II xi ... II XL multi-cell for a wider format that ...
... This depletion cocktail is tailored ... from suspensions of rat spleen ... the StemSep (or compatible 0.5 ... The T cell content of ...
Biology Products: