Navigation Links
Herbivore populations will go down as temperatures go up, University of Toronto study says
Date:10/4/2011

As climate change causes temperatures to rise, the number of herbivores will decrease, affecting the human food supply, according to new research from the University of Toronto.

In a paper being published this month in American Naturalist, a team of ecologists describe how differences in the general responses of plants and herbivores to temperature change produces predictable declines in herbivore populations. This decrease occurs because herbivores grow more quickly at high temperatures than plants do, and as a result the herbivores run out of food.

"If warmer temperatures decrease zooplankton in the ocean, as predicted by our study, this will ultimately lead to less food for fish and less seafood for humans," says co-author Benjamin Gilbert of U of T's ecology and evolutionary biology department.

Several studies have shown how the metabolic rates of plants or animals change with temperature. Gilbert and his colleagues incorporated these rates into commonly-used, mathematical models of plants and herbivores to predict how the abundance of each should change with warming. They then compared their predictions to the results from an experimental study in which phytoplankton and zooplankton populations in tanks of water shifted significantly with changes in water temperature.

Gilbert cautions that long-term tests are required. Nevertheless, if their predictions are right, global warming will cause large shifts in food chains with consequences for global food security and species conservation.


'/>"/>

Contact: Jessica Lewis
jessica.lewis@utoronto.ca
416-978-8887
University of Toronto
Source:Eurekalert

Page: 1

Related biology news :

1. Plants discover the benefits of good neighbors in strategy against herbivores
2. Snakes, salamanders and other creatures thrive in areas with higher deer populations
3. Shifts in soil bacterial populations linked to wetland restoration success
4. Lake Michigan fish populations threatened by decline of tiny creature
5. You dont call, you dont write: Connectivity in marine fish populations
6. U of Minnesota-led study finds that hunters are depleting lion and cougar populations
7. Changing the course of nature: Are fisheries directing the evolution of fish populations?
8. Commercial fishing endangers dolphin populations
9. Crucial differences found among Latino populations facing heart disease risks
10. Climate change and habitat destruction affect butterfly populations
11. North Atlantic fish populations shifting as ocean temperatures warm
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/9/2016)... May 9, 2016 Elevay is ... to expanding freedom for high net worth professionals seeking ... today,s globally connected world, there is still no substitute ... ever duplicate sealing your deal with a firm handshake. ... by taking advantage of citizenship via investment programs like ...
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... subsidiary of Infosys (NYSE: INFY ), and Samsung ... global partnership that will provide end customers with a ... and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... for financial services, but it also plays a fundamental part ...
(Date:4/26/2016)... India and LONDON ... Infosys Finacle, part of EdgeVerve Systems, a product ... and Onegini today announced a partnership to integrate ... solutions.      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ... to provide their customers enhanced security to access ...
Breaking Biology News(10 mins):
(Date:5/23/2016)... and LONDON , May 23, 2016 ... Could See Frontage Boost Efficiency by 40% - Frontage ... - Frontage Enforce Quality, Compliance and Traceability Within the Bioanalytical ... with labs in the United States and ... to be deployed across its laboratory facilities. In addition to ...
(Date:5/23/2016)... ... 23, 2016 , ... Foresight Institute , a leading ... for the 2015 Foresight Institute Feynman Prizes. , These prestigious prizes, named ... for experiment and the other for theory in nanotechnology. Prof. Markus J. Buehler, ...
(Date:5/20/2016)... CA (PRWEB) , ... May 20, 2016 , ... The ... 10 of its most experienced veterinary clients have treated over 100 of their own ... edge technology to provide the highest level of care for their patients. , ...
(Date:5/20/2016)... NC (PRWEB) , ... May 20, 2016 , ... Korean ... suggesting that it may offer a new way to treat the disease. Surviving Mesothelioma ... it now. , Scientists from several Korean institutions based their mesothelioma study on ...
Breaking Biology Technology: