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:11/21/2014)... According to a new market ... RFID, Access Control, Intrusion Detection, Parking Management, Under Vehicle ... Service Geography - Global Forecasts to 2020", published by ... be around $25 Billion in 2014 and is expected ... CAGR of 8.69%. Browse 116 market data ...
(Date:11/21/2014)... Calif. , Nov. 20, 2014 Strict ... driver efficiency are piloting the North American and European ... of accidents growing, gesture recognition systems that are intuitive ... a mark in the industry. New ... Automotive Gesture Recognition Market in Europe ...
(Date:11/21/2014)... , Nov. 20, 2014   Atmel® Corporation ... in microcontroller (MCU) and touch technology solutions, today launched ... sensors with the widest V cc range ... temperature accuracy and faster I 2 C bus communication ... serial EEPROM memory making them ideal for consumer, industrial, ...
Breaking Biology News(10 mins):Industrial Security Systems Market Worth $38 Billion by 2020 2Industrial Security Systems Market Worth $38 Billion by 2020 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4
... nearly 20 years, Frank Bayliss, mentoring work has made San ... students in the sciences. For his efforts, Bayliss has been ... Engineering Mentoring. Bayliss will officially receive the award during a ... had already been teaching biology at SF State for nearly ...
... rapidly to climate and habitat change and established a ... grounds, according to new research. An international research ... from the US, South Africa and Italy, led by ... Biomedical Sciences, Durham University, found that when the Antarctic ...
... Coastal marine ecosystems are at risk worldwide as a result ... who have recently published a study in the Journal ... integrated analysis of all coastal areas of the world. ... litany of impacts from human activities, from the land, such ...
Cached Biology News:SF State professor honored by President Obama for science mentoring 2Seals quickly respond to gain and loss of habitat under climate change 2Seals quickly respond to gain and loss of habitat under climate change 3New study ranks 'hotspots' of human impact on coastal areas 2
(Date:12/19/2014)... December 19, 2014 Bioject Medical ... and manufacturer of needle-free injection technology, today announced ... Immunomic Therapeutics, Inc. (“ITI”) for ITI to use ... its LAMP™ vaccine platform. , In the ... Worldwide license to the Biojector®-2000 that triggers based ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one of the ... Maroulis, Pharm.D. to the newly created position of Vice ... position, Dr. Maroulis will continue to manage the entire ... multi-site pharmacies as the company expands. Dr. Maroulis has ... he has served in many different capacities in the ...
(Date:12/19/2014)... -- Roche (SIX: RO, ROG; OTCQX: RHHBY) announced today ... privately held company based in Redwood ... big data platform for centralized management and processing ... on-market Genomic Management Solution, Bina-GMS 1 , empowers ... and scalable analyses to maximize the value of ...
(Date:12/19/2014)... , Dec. 19, 2014 Decision Resources ... will grow at a 12 percent compound annual growth ... of the aging population and the increasing adoption of ... America will also spur demand for dental ... dental implant and periodontal treatments. Other key ...
Breaking Biology Technology:Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Roche acquires Bina Technologies and enters the genomic informatics market 2Roche acquires Bina Technologies and enters the genomic informatics market 3Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 3
... Wis. The planned Wisconsin Institute for Discovery has ... Wisconsin-Madison: $50 million from John and Tashia Morgridge. , ,The ... Research Foundation, and the State Building Commission has approved $50 ... , ,John Morgridge, chairman of the board of Cisco Systems ...
... case anyone doubts that the Wisconsin Alumni Research Foundation has ... cell patent, Andy Cohn would like to disabuse them of ... said the foundation, armed with a $1.5 billion endowment, is ... stem cell patent. , ,In the wake of recent events, ...
... many companies have been downsizing their domain name portfolios ... had cooled. There has not been, however, a corresponding ... increase in the number of domain name cases filed ... name market has been reinvigorated due to the development ...
Cached Biology Technology:Morgridge gift enables phase one of Institute for Discovery 2WARF says it's ready for a legal challenge on stem cells 2WARF says it's ready for a legal challenge on stem cells 3WARF says it's ready for a legal challenge on stem cells 4Renew your domain name! 2Renew your domain name! 3Renew your domain name! 4
... is designed for stabilizing the coating ... for immunoassay development. It can ... coating and drying process and for ... also works as a blocking agent ...
... Tecans open platform for clinical diagnostic applications, ... performance in the clinical diagnostic and blood ... barcode reading and sample traceability as standard ... complies with the IVD-Directive* established in the ...
... of the smallest thermal cyclers on the market, ... the 0.5ml (20 samples) or 0.2ml microtube (25 ... heating and cooling rate of 3.6C/sec and 2.0C/sec ... Fast track programming with new quick dial ...
... new TC-412 thermal cycler, flexible on your protocols, ... a high performance, high sample throughput instrument at ... Flexible block format: The truly user-friendly fully ... in a matter of seconds without the need ...
Biology Products: