HOME >> BIOLOGY >> NEWS
Wolves alleviate impact of climate change on food supply, finds new UC Berkeley study

Berkeley -- Yellowstone National Park's gray wolves, once nearly extinct there, have returned to play a critical role in easing the effects of climate change on food availability, according to a new study by researchers at the University of California, Berkeley.

When winters are severe, more elk die, providing needed food for the wide range of scavengers in the area, including bears, coyotes, eagles and ravens, the researchers said. Shorter, warmer winters brought on by global warming increase the survival rate of elk, causing a food shortage for the scavengers at a time when other resources are scarce.

With the help of the gray wolves, however, elk are regularly killed off regardless of the winter's severity, according to the study. And luckily for the scavengers, the wolves are willing to share their leftovers, thereby buffering the impact of climate change.

"When wolves are around, you no longer get this boom-bust cycle in carrion availability," said the study's lead author, Chris Wilmers, who conducted his work as a Ph.D. student in ecosystem sciences at UC Berkeley's College of Natural Resources. "Wolves provide a steady supply of carrion for the scavengers throughout the winter, whether it is mild or severe."

Gray wolves were once found throughout North America, but were nearly hunted to extinction by 1970. Since the U.S. Fish & Wildlife Service reintroduced wolves to Yellowstone in 1995, a growing body of research is finding that this top carnivore, which has been making a comeback, is an essential player in the region's ecosystem. There are now 31 gray wolves at Yellowstone.

The new study, which appears in the April 2005 issue of the online journal Public Library of Science Biology, builds upon earlier research led by Wilmers. The earlier studies found that wolves, unlike other predators, leave behind their kill once they've stuffed themselves, allowing scavengers to partake in the bounty.

In contra
'"/>

Contact: Sarah Yang
scyang@berkeley.edu
510-643-7741
University of California - Berkeley
21-Mar-2005


Page: 1 2 3

Related biology news :

1. Wolves of Alaska became extinct 12,000 years ago, scientists report
2. Wolves are suffering less from inbreeding than expected
3. Wolves top-down effect
4. Wolves gone, western ecosystems suffer
5. New neurons could act to alleviate epilepsy
6. African symposium to focus on how nature can help alleviate poverty
7. African symposium to focus on how nature can help alleviate poverty
8. Brain derived neurotrophic factor alleviates disease symptoms in a mouse model of Rett Syndrome
9. Researchers alleviate symptoms of Rett syndrome in mice
10. Fuel ethanol cannot alleviate US dependence on petroleum
11. Brain surface stimulation alleviates Parkinsons symptoms

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/14/2019)... ... ... Dr. Julie Reck of Veterinary Medical Center of Fort Mill has recently begun ... patient, her own geriatric Australian Shepherd, Simon, was treated in June 2019 for osteoarthritis in ... his body was weak, and he struggled to play fetch and other games with his ...
(Date:8/6/2019)... ... August 05, 2019 , ... Keck Graduate Institute (KGI) President Sheldon Schuster has ... Sciences (SPHS). , “Dean Zdanowicz is highly regarded as an innovative leader who prioritizes ... is a great choice to build on the success of the KGI School of ...
(Date:8/4/2019)... PRINCETON, N.J. (PRWEB) , ... August 02, 2019 ... ... expertise to assist the life science industry in advancing the development of medical ... has been recognized by PharmaVOICE magazine as one of the “100 Most Inspiring ...
Breaking Biology News(10 mins):
(Date:7/11/2019)... ... July 11, 2019 , ... At the most recent ... therapies to eight military Veterans under the R3 Heroes Program. The Veterans included individuals ... R3 Heroes Program allow anyone to nominate a military Veteran, teacher or first responder ...
(Date:6/26/2019)... ... June 26, 2019 , ... Alice Branton today released ... improving physicochemical properties of Magnesium Gluconate, which can prove to be beneficial for treating ... of characteristic differentiation peak, change in crystallite size , Over 142% increase ...
(Date:6/11/2019)... ... 2019 , ... Thought Technology Ltd is pleased to announce ... Tech Ltd as its authorised distributor for the UK and Ireland. , ... and clinical assessment protocols to treat stress related disorders as well as provide ...
(Date:6/11/2019)... ... June 11, 2019 , ... Veterinary Regenerative Medicine company, ... , has announced that their GMP facility for cell production is now approved ... This is an important milestone for VetStem as it expands into contract ...
Breaking Biology Technology:
Cached News: