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:2/2/2016)... 2016 Checkpoint Inhibitors for Cancer – ... Are you interested in the future of cancer ... inhibitors. Visiongain,s report gives those predictions to 2026 ... level. Avoid falling behind in data or ... revenues those emerging cancer therapies can achieve. There ...
(Date:2/2/2016)... RESTON, Va. , Feb. 2, 2016 /PRNewswire/ ... contract award from the U.S. Army Research Office ... extend the range and sensitivity of the company,s ... DoD,s Past Accounting Mission and, more generally, defense-related ... its DNA phenotyping capabilities (predicting appearance and ancestry ...
(Date:2/1/2016)... , February 1, 2016 Rising ... to drive global touchfree intuitive gesture control market ... Rising sales of consumer electronics coupled with new ... market size through 2020   ... coupled with new technological advancements to drive global touchfree ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... LOS ANGELES , Feb. 8, 2016 /PRNewswire/ ... research and development company specializing in oncology, today ... loan and security agreement with Hercules Technology Growth ... up to $40 million in financing. ... received the first $25 million of financing under ...
(Date:2/8/2016)... N.C. , Feb. 8, 2016 Novan, Inc. today ... Chairman of the Board of Directors of Novan. In addition, ... North Carolina . --> ... Company also announced that it received a total of $32.8 million ... 2015 from its private investor network originating throughout the Research Triangle ...
(Date:2/8/2016)... , Feb. 8, 2016  BioElectronics Corporation ... medical devices, announced today that it is responding ... proceedings from the Securities and Exchange Commission posted ... Staelin , Chairman of the Board of BioElectronics ... of Business Administration at The Fuqua School of ...
(Date:2/8/2016)... ... 08, 2016 , ... Bulk food product inspection systems are ... stages of the production process. Despite frequently inspecting loose product prior to packaging, ... such as sacks of dry powders. , Mettler-Toledo Product Inspection's brand-new white paper ...
Breaking Biology Technology: