Navigation Links
Life on the edge: To disperse, or become extinct?
Date:6/23/2008

(Kingston, ON) The hardiest plants and those most likely to survive the climatic shifts brought about by global warming are now easier to identify, thanks to new research findings by a team from Queen's University.

"Predicting the speed at which plants are likely to migrate during climate warming could be key to ensuring their survival," says Queen's Biology professor Christopher Eckert.

Populations of plants growing at the outer edges of their natural "geographic range" exist in a precarious balance between extinction of existing populations and founding of new populations, via seed dispersal into vacant but suitable habitat. "Policy makers concerned with preserving plant species should focus not only on conserving land where species are now, but also where they may be found in the future," says Dr. Eckert.

This observation stems from his recent study published in the scientific journal New Phytologist which shows for the first time that natural selection gives a boost to the seed dispersal traits of those plants growing at the edges of their natural ranges.

If species are going to persist in the face of a changing climate, they must move to stay within the climate zone to which they are best adapted, Dr. Eckert explains. Their ability to relocate with shifts in regional climate brought about by global warming will largely depend on their capacity for dispersal, especially in populations near the limit of their geographical distributions.

With undergraduate student Emily Darling and PhD student Karen Samis, Dr. Eckert studied the geographic distribution and dispersal biology of Abronia umbellata (pink sand verbena), a flowering plant endemic to the Pacific coastal dunes of North America. By surveying plants throughout the 2000-km geographic range, and measuring seed dispersal with a wind tunnel in the Faculty of Applied Sciences, they showed that plants at range limits produce seeds with larger
'/>"/>

Contact: Nancy Dorrance
nancy.dorrance@queensu.ca
613-533-2869
Queen's University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. UNH becomes first university in nation to use landfill gas as primary energy source
2. Scientists find how amber becomes death trap for watery creatures
3. Mandate for public access to NIH-funded research poised to become law
4. Could hairy roots become biofactories?
5. Computers explain why pears may become brown during commercial storage
6. First rule of evolution suggests that life is destined to become more complex
7. Making sure the wonder materials dont become the wonder pollutant
8. Computation to unravel how genes are regulated and shed light on how cells become different
9. A protein sequence associated with Huntington’s disease may become life-saving vaccine component
10. Refusal of suicide order: Why tumor cells become resistant
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Life on the edge: To disperse, or become extinct?
(Date:4/16/2014)... Armand-Frappier has just received a research grant from the ... nearly US$600,000. The 5-year grant is to pursue cutting-edge ... and to explore their biomedical potential in the field ... , "Receiving a grant at this level ... president of research and academic affairs at INRS. "It ...
(Date:4/16/2014)... array of finger-like projections called microvilli covers ... intestines., Vanderbilt University researchers have now discovered how ... critical for absorbing nutrients and defending against pathogens. ... Cell , reveal a role for adhesion ... understanding of intestinal pathologies associated with inherited and ...
(Date:4/16/2014)... memories improves during childhood, associated with structural changes ... and parietal cortices. New research from UC Davis ... this crucial time. Eventually, that could give insights ... into and during adolescence and affect memory, such ... the middle of the brain, the hippocampus plays ...
Breaking Biology News(10 mins):High-level NIH grant goes to professor Nicolas Doucet of INRS 2Vanderbilt researchers discover how intestinal cells build nutrient-absorbing surface 2Vanderbilt researchers discover how intestinal cells build nutrient-absorbing surface 3How kids' brain structures grow as memory develops 2
... To arrange for an interview with a researcher, please contact ... of each tip. For more information on ORNL and its research ... If you have a general media-related question or comment, you can ... -- Battling bugs . . . The software-writing ...
... have discovered a novel mechanism in Salmonella that ... its production of proteins in a previously unheard of manner. ... of certain proteins to respond to inhospitable conditions. ... were intrigued to find evidence of a similar mechanism in ...
... 29, 2010): Today, the Association for Molecular Pathology (AMP) submitted ... by the National Institutes of Health (NIH) for its Genetic ... membership to formulate a comprehensive response to the RFI. ... laboratory setting, AMP is able to inform the NIH on ...
Cached Biology News:Story tips from the Department of Energy's Oak Ridge National Laboratory, August 2010 2Story tips from the Department of Energy's Oak Ridge National Laboratory, August 2010 3Story tips from the Department of Energy's Oak Ridge National Laboratory, August 2010 4Mechanism uncovered behind Salmonella virulence and drug susceptibility 2Mechanism uncovered behind Salmonella virulence and drug susceptibility 3Mechanism uncovered behind Salmonella virulence and drug susceptibility 4AMP responds to Genetic Test Registry request for information 2
(Date:1/15/2014)... 2014 The Microcompetition with Foreign DNA ... disease. One of these latent viruses is the Epstein ... rheumatoid arthritis (RA). Rheumatoid arthritis (RA) is a chronic ... by the theory, a study found that RA patients ... (1). , What is Microcompetition? , Dr. Hanan ...
(Date:1/15/2014)... Sunnyvale, CA (PRWEB) January 15, 2014 ... of high throughput research solutions, today announced that ... companies, has received delivery of Freeslate’s CM ... form screening. , Lupin, headquartered in Mumbai, ... quality, affordable generic and branded formulations and Active ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Date: Friday, ... p.m. , Location: Warrington Country Club, 1360 Almshouse Road, ... Foundation, the only national nonprofit organization solely dedicated to ... quality of life for those affected worldwide, will host ... Warrington Country Club in Warrington, Pa. , Each ...
(Date:1/14/2014)... , Jan. 14, 2014  3D Communications, a leading provider ... major scientific, regulatory, business, and media events in ... , today announced its former associate Virginia Cox , ... office. Virginia Cox re-joins ... Commissioner for the Office of External Affairs at the U.S. ...
Breaking Biology Technology:Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2Former FDA Associate Commissioner Returns To 3D Communications 2
... quickly produce ultra-lightweight, bendable batteries and supercapacitors in ... a sheet of paper with ink made of ... conductive storage device, said Yi Cui, assistant professor ... needs a low-cost, high-performance energy storage device, such ...
... 7 Vivakor, Inc. (OTC Bulletin Board: VIVK) today announced ... Chen and Fritz Lin, M.D. , Dr. Francis Chen ... as Board member of Vivakor, having held senior management positions ... Dr. Chen earned his Ph.D. in immunology from Harvard University, ...
... , VIENNA, Austria, December 7 ... for the,chemical industry, announced today that it has appointed Mr ... forward, EUCODIS Bioscience,sole focus will be to provide high-performance enzymes ... and,on its proven technology of "in vivo recombination". , ...
Cached Biology Technology:Dip ordinary paper into ink infused with nanotubes and nanowires to create an instant battery 2Vivakor Announces Additions to Board of Directors and Scientific Advisory Board 2Vivakor Announces Additions to Board of Directors and Scientific Advisory Board 3EUCODIS Bioscience Appoints Thomas Fischer as New CEO 2
... new product number, created to easily match ... yet, please order under the old Sigma-Aldrich ... assistance. ID clarifier: tissue-culture treated ... cm 2 D H 245 ...
BD BioCoat Collagen IV 150 mm Culture Dishes...
...
...
Biology Products: