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

wings, thus increasing dispersal in the winds that commonly buffet costal habitats.

"The way evolution works at range limits has been brought into sharper focus by the debate over how species will respond via migration to climate warming," says Dr. Eckert. "It's clear that these marginal populations are adapted in ways that more central populations aren't."

According to Cornell University biologist Monica Geber, in an editorial focused on this new research, the Queen's team has "flipped the question of dispersal limitation on its head to ask whether range-edge populations have diverged, through adaptive evolution, from central populations to increase their colonizing ability."

There has been considerable debate as to whether these northern peripheral populations are worth conserving, Dr. Eckert notes. If they possess adaptations that will enhance their ability to expand their range during climate change, then the answer is yes, he says. His team has recently shown that in Vaccinium stamineum (deerberry) a threatened plant related to the blueberry the capacity for seed dispersal appears to increase sharply towards the range limit in Canada.

In addition, some threatened Canadian populations produce high-quality seeds that exhibit rapid germination and particularly high seedling growth.

"These observations are consistent with our work on coastal dune plants, suggesting that our results may have general relevance and significance for species conservation in changing global environments" says Dr. Eckert.


'/>"/>

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:10/17/2014)... Why do male ... reproduce? And why are there two sexes anyway? These and ... the research journal Molecular Human Reproduction published today ... University Bielefeld has compiled this special issue on sperm competition. ... copulate with several males in quick succession – chimpanzees are ...
(Date:10/17/2014)... . To date, ... overdoses, doctors are often limited to supportive therapy such as ... combination of drugs involved. So what can be done if ... ETH professor Jean-Christophe Leroux from the Institute of Pharmaceutical Sciences ... question. "The task was to develop an agent that could ...
(Date:10/16/2014)... William and Mary,s Virginia Institute of Marine Science ... Environmental Protection Agency to identify the streams and ... develop tools to help local governments and citizens ... critically on a dataset of tidal-marsh observations first ... with this historical baseline can today,s researchers accurately ...
Breaking Biology News(10 mins):Sperm wars 2Emergency aid for overdoses 2Emergency aid for overdoses 3EPA grant will help localities conserve headwater wetlands 2EPA grant will help localities conserve headwater wetlands 3
... bacterial community living under extreme conditions almost two miles ... mine. It is the first microbial community demonstrated to ... and one of the few ecosystems found on Earth ... in any way. The discovery, appearing in the October ...
... An examination of 4 cases of botulism following cosmetic ... a highly concentrated, unlicensed preparation that resulted in toxin ... dose, according to a report in the November 22/29 ... paralytic illness caused by the toxins of the spore-forming ...
... further than the air around you. It could be ... to a first-of-its-kind census of airborne microbes recently conducted ... Berkeley National Laboratory (Berkeley Lab). , The team ... in air samples taken from the Texas cities of ...
Cached Biology News:Otherworldly bacteria discovered two miles down 2Highly concentrated botulinum preparation for cosmetic injections can result in severe illness 2Highly concentrated botulinum preparation for cosmetic injections can result in severe illness 3Study finds the air rich with bacteria 2Study finds the air rich with bacteria 3Study finds the air rich with bacteria 4
(Date:10/22/2014)... NJ (PRWEB) October 22, 2014 ... and services – has been working with a team ... and New Haven Farms Community Farming Collaborative to provide ... ePRO solution. The study, which started in May, ... program that provides participants weekly exposure to and participation ...
(Date:10/22/2014)... ROCKVILLE, Md. , Oct. 22, 2014   ... company developing novel pathogen-specific therapies for serious infections and ... Office has issued a Notice of Allowance for a ... product in its C. difficile program, SYN-004. This ... to SYN-004 in the U.S. and adds to the ...
(Date:10/20/2014)... The report “Pharmacy Automation Systems ... and Labeling Systems, Table-top Counters) by End-user (Inpatient ... & Trends to 2019” analyzes and studies the ... America, Europe, Asia-Pacific, and the Rest of the ... 30 figures spread through 300 pages and in-depth ...
(Date:10/20/2014)... -- , A major pan-European survey into ... of care has revealed changing trends in many important ... provision of healthcare services across the continent. The results ... Gastroenterology (UEG), have been announced today and led to ... burden of GI disorders across Europe ...
Breaking Biology Technology:myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 2Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 4Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 2Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 5
... , , , VILNIUS, Lithuania, ... a provider of high-precision biometric identification technologies, has released new versions of the ... identification. The latest SDK versions, VeriFi n ger 6.1 ... VeriE y e 2.1 and MegaM ...
... Aug. 24 In response to the quickly emerging need ... for their members or constituents, tech startup Engageon LLC officially ... The first launch was developed for the National Lipid Association ... . lipid.org . Typically, most organizations have a ...
... NORWOOD, Mass., Aug. 24 Advanced Instruments has introduced ... business experience when purchasing osmometers, cryoscopes, and microbiological laboratory instruments. ... i es.com , was developed from the perspective ... and application information, scientific materials, and technical support. , ...
Cached Biology Technology:New Product Versions from Neurotechnology Enable Tri-modal Biometrics 2New Product Versions from Neurotechnology Enable Tri-modal Biometrics 3Engageon Releases First Peer-to-Peer Medical Association Social Network 2Advanced Instruments Introduces Next-Generation Web Site 2