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:7/11/2014)... The Chinese University of Hong Kong, BGI and other ... to salt tolerance, with implication for improving this important ... online in Nature Communications provides an effective ... , Soybean is an important crop for the world. ... less genetic diversities than their wild counterparts. Among the ...
(Date:7/11/2014)... group members to reduce aggression and gain access to ... grooming activities shows a certain pattern across the day. ... Biology Letters . , Grooming between individuals in ... motives. To be groomed has hygienic benefits and is ... can provide access to infants, mating opportunities and high ...
(Date:7/11/2014)... Ume University, Sweden, have explored two different ways ... sequence leading to the formation of oxygen molecules ... in the scientific journal Nature Communications . ... day synthetic catalysts for water oxidation, which are ... the direct storage of solar energy in fuels ...
Breaking Biology News(10 mins):BGI reports a novel gene for salt tolerance found in wild soybean 2Baboons groom early in the day to get benefits later 2Molecular snapshots of oxygen formation in photosynthesis 2
... Lockheed Martin (NYSE: LMT ) has been ... of the Year" by Frost and Sullivan, recognizing the ... high levels of customer value. "Lockheed ... that play an important role our customer,s law enforcement ...
... Nitrogen is essential for plant growth. Despite the abundance ... must rely on a series of chemical reactions to ... forms. Plants have achieved this goal primarily by evolving ... nitrogen, plants, and the environment are the focus of ...
... Has a bone density scan placed you at risk ... bone-building medication? Not so fast! A University of Illinois study ... dietary calcium and vitamin D or taking calcium and vitamin ... be a last resort," said Karen Chapman-Novakofski, a U of ...
Cached Biology News:Lockheed Martin Named Biometrics "Company of the Year" by Frost and Sullivan 2Book looks at interrelationships among nitrogen, plants and the environment 2U of I study: Before you start bone-building meds, try dietary calcium and supplements 2U of I study: Before you start bone-building meds, try dietary calcium and supplements 3
(Date:7/10/2014)... 10, 2014  Franciscan St. Anthony Health-Crown ... for respiratory monitoring outside the operating room, ... in embracing state-of-the-art patient safety technology. ... breathing and can alert medical caregivers when ... amount of carbon dioxide the patient is ...
(Date:7/10/2014)... -- Research and Markets ( http://www.researchandmarkets.com/research/s3bqj2/photonic ) has ... Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) ... their offering. http://photos.prnewswire.com/prnh/20130307/600769 ... traces its roots in the latter half of ... went unexplored and unfulfilled for several decades owing ...
(Date:7/10/2014)... microscopic polymer light resonators that expand in the ... Photonics Laboratory have developed new optical sensors with ... sensors are ideal for detecting trace gas concentrations ... nature, and immunity to electromagnetic interference. , Although ... the MIT team conceived an extremely sensitive, compact ...
(Date:7/10/2014)... that power our laptops and electric vehicles could store ... with the help of a sponge-like silicon material. ... graphite traditionally used in one of the battery,s electrodes, ... storage capacity of graphite. A paper describing the material,s ... in Nature Communications . , "Silicon has long ...
Breaking Biology Technology:Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2Swell new sensors 2Silicon sponge improves lithium-ion battery performance 2Silicon sponge improves lithium-ion battery performance 3
Performance, mycoplasma, virus, and endotoxin tested...
... 10X BlueJuice Gel Loading ... easy loading and tracking ... agarose or native polyacrylamide ... features higher density sucrose ...
... is the most effective ... PCR products. TOPO TA ... TOPO vectors are supplied ... topoisomerase I. This enables ...
ready-to-use solution...
Biology Products: