HOME >> BIOLOGY >> NEWS
Wolf response to climate change can impact ecosystem

HOUGHTON, MI -- The way wolves respond to significant climate changes can have far-reaching consequences for the ecosystems in which they live, according to an article published in the Oct. 28 issue of Nature magazine.

The article details a study conducted by Eric Post and Nils Christian Stenseth of the Department of Biology, University of Oslo, Norway; Rolf Peterson, School of Forestry and Wood Products, Michigan Tech University; and Brian McLaren, Department of Forest Resources, Wildlife Division, St. Johns, Newfoundland, Canada.

The wildlife data used in the study were collected during a long-term and continuing survey directed by Peterson on wolf-moose relationships on Isle Royale National Park in Lake Superior.

Scientists have known that predators at the top of the food chain exert considerable influence on the structure and function of ecosystems that are regulated by top-down interactions with lower level organisms, and that responses to climatic change at the top have the potential to shape responses at lower levels. On Isle Royale, wolves regulate such a system by limiting the productivity of moose, which limit productivity of fir trees.

" We investigated the ecological consequences of apex predators responses to climate change by using data collected over 40 years on wolf behavior and how it affected moose and their impact on fir saplings on Isle Royale," explained Peterson.

" Wolves responded to increasingly snowy winters by hunting in larger packs, and consequently, were able to triple the number of moose killed per day compared to less snowy years when they hunted in smaller packs."

Peterson said this greater killing efficiency by wolves brought a decline in the moose population that resulted in less browsing pressure on balsam fir saplings, which showed a noticeable increase one year after snowy winters. " We suggest that this evidence indicates that cascading behavioral responses of apex predators to climatic change
'"/>

Contact: Rolf O. Peterson
ropeters@mtu.edu
906-487-2179
Michigan Technological University
26-Oct-1999


Page: 1 2

Related biology news :

1. Columbia research to examine gene influence on severity of peridontal disease, therapy response
2. Protective gene may enhance vaccine responses
3. Activated signaling pathway may predict lung cancer patients response to gefitinib
4. Duke study disputes idea that trees can relocate quickly in response to climate change
5. Researchers develop better understanding of immune response to viral infection
6. Molecular motor shuttles key protein in response to light
7. Triple-vaccine strategy stimulates strong HIV-specific immune response in monkeys
8. Genetic basis for individual variations in the response to stress
9. Drunken worms reveal a genetic basis of alcohol response
10. Researchers identify genetic markers to predict response to chemotherapy for colorectal cancer
11. With fat, women have a more visceral response

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


(Date:8/5/2020)... ... , ... Regenative Labs has received approval from the Centers for Medicare & ... first Wharton’s jelly allografts to be assigned a Q code and be approved for ... Wharton’s jelly allograft product to be recognized as a 361 HCT/P by CMS regulated ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com ... a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European ... J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... ... collection, today announced Jim Corrigan, President and CEO has been named one of ... broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on how ...
(Date:7/31/2020)... ... July 29, 2020 , ... R3 Stem Cell International is ... $3950. With 50 million stem cells total, patients may choose which extremities they would ... for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord tissue is ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
Breaking Biology Technology:
Cached News: