Navigation Links
Gray wolves maintain the food chain in winter

Climate change has already had dramatic effects on individual species, with disruptions in range, reproductive success, and seasonal phenomena like migration. But, in a new study from the open-access online journal PLoS Biology (www.plosbiology.org), Christopher Wilmers and Wayne Getz show that the impact of climate change on many different species in Yellowstone Park can be buffered by a top predator - the reintroduced gray wolf (Canis lupus).

Gray wolves inhabited most of North America until US extirpation campaigns nearly eradicated them by the 1930s. In 1995, the US Fish and Wildlife Service reintroduced the persecuted predator into Yellowstone. Wilmers and Getz used data from the past 50 years to establish winter trends and model wolves' impact on the fate of resident scavengers faced with a changing climate. Their models show that wolf kills temper the potentially devastating effects of climate-related carrion shortages on scavengers. Unlike mountain lions and grizzly bears, wolves abandon their prey (usually elk or moose) once sated, leaving much-coveted leftovers for ravens, eagles, coyotes, bears, and other scavengers. Altogether, their modeling studies show that shorter winters without wolves will create intermittent food supplies that no longer track the needs of local scavengers. With or without wolves, late-winter carrion abundance will decline with shorter winters. But wolf kills buffer these shortages, providing meals that could determine whether scavengers will be able to survive and reproduce.

It seems clear that wolves have the potential to provide a safety net for scavengers, extending the time they need to adapt to a changing environment. Thanks to a rebounding wolf population, field researchers can measure the magnitude of this predicted buffer effect. The models described here can guide their efforts and help species adjust to major environmental shifts like climate change. Crucially, Wilmers and Getz's study shows that a robust
'"/>

Source:PLoS Biology


Page: 1 2

Related biology news :

1. UCSD researchers maintain stem cells without contaminated animal feeder layers
2. Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal
3. Neuroscientists discover new cell type that may help brain maintain memories of smells
4. NASA snow data helps maintain nations largest, oldest bison herd
5. Currents could disrupt ocean food chain
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Gray wolves maintain the food chain winter

(Date:9/18/2014)... University and the Quebec government have discovered microplastics ... Journal of Fisheries and Aquatic Sciences . , ... or industrial cleansers, to which they are commonly ... and buoyancy, they may readily pass through sewage ... in the world,s oceans, but have only recently ...
(Date:9/18/2014)... how many times it,s demonstrated, it,s still hard ... , But by using a signaling system called ... behavior to suit their population. In short, some ... and act accordingly. , Once the population of ... from innocuous to pathogenic, or from unhelpful to ...
(Date:9/18/2014)... creatively manipulate spoken language is unique to humans. "The ... years of human evolution to make this possible are ... we now have," says Wolfgang Enard, Professor of Anthropology ... understand the molecular biological basis of language Enard has ... his latest study, undertaken in collaboration with scientists at ...
Breaking Biology News(10 mins):Microplastic pollution discovered in St. Lawrence River sediments 2Researchers study vital 'on/off switches' that control when bacteria turn deadly 2Researchers study vital 'on/off switches' that control when bacteria turn deadly 3Language evolution: Quicker on the uptake 2Language evolution: Quicker on the uptake 3
... researchers have identified the culprit gene for a rare condition ... control. Their finding provides new insight into urofacial syndrome ... percent of the general population. "This paper really ... gene and its encoded proteins play a very important role ...
... diseases on crops in developing countries and their ... to a new study by Maurizio Vurro and ... of Food Production in Italy. The authors call ... better mechanisms for monitoring and managing emerging infectious ...
... Singapore (GIS), a biomedical research institute of the Agency ... from the National University of Singapore, Nanyang Technological University, ... discovered that viruses that ,invaded, the human genome millions ... turned on and off in human embryonic stem (ES) ...
Cached Biology News:Researchers identify gene linked to hereditary incontinence 2Researchers identify gene linked to hereditary incontinence 3Plant disease -- more than a crop killer 2Scientists discover ancient viral invasion that shaped human genome 2Scientists discover ancient viral invasion that shaped human genome 3
(Date:9/18/2014)... 2014  Health Enhancement Products, Inc. (OTCQB: HEPI), a ... compounds and metabolic processes, is pleased to announce the addition ... Ms. Nola E. Masterson , a California ... effective September 17, 2014. "We,re very pleased ... board," states Andrew Dahl , President and CEO. "She ...
(Date:9/18/2014)... Texas (PRWEB) September 18, 2014 ... Chancellor John Sharp, Texas A&M Health Science Center ... U.S. Department of Health and Human Services (HHS), ... dedicated a national pandemic influenza vaccine manufacturing facility ... as an anchor for the Texas A&M Biocorridor ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global and Chinese Stem Cell Industry Report, 2014-2017" ... cells are undifferentiated biological cells that can differentiate into ... more stem cells. Stem cell therapy can be applied ... hematological system disease), nervous system diseases, damage or lesion ...
(Date:9/18/2014)... -- Research and Markets has announced the ... 2014" report to their offering. ... professional and in-depth study on the current state of ... provides a basic overview of the industry including definitions, ... market analysis is provided for the international markets including ...
Breaking Biology Technology:Health Enhancement Announces New Board Member In Advance Of Annual Shareholder Meeting 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3
... high resolution structure of a nano-scale square made from ribonucleic ... in this week,s early online edition of the journal ... team of chemists headed by Thomas Hermann, an assistant professor ... the ability to carry structural information encoded in the sequence ...
... Calif., April 4, 2011 Ambry Genetics announced today ... (CSP) in Ion Torrent,s new service provider program. Ion ... are trusting with their samples has been trained and ... sequence data. (Logo: http://photos.prnewswire.com/prnh/20110307/LA59848LOGO ) ...
... April 4, 2011 Cellectis (Alternext: ALCLS), the ... a license agreement with a pharmaceutical company covering certain uses ... the oncology therapeutic field. This agreement has triggered ... Further details of the arrangement have not been disclosed. ...
Cached Biology Technology:Ambry Genetics is First Authorized Customer Service Provider in New Ion Torrent CSP Program 2Ambry Genetics is First Authorized Customer Service Provider in New Ion Torrent CSP Program 3
... been developed for use with immunohistochemical ... nonspecific background staining due to endogenous ... peroxidase with hydrogen peroxide. This ... with additional novel components to further ...
Anti-Human Factor XI Purified (Polyclonal) (sheep IgG)...
Formulation: 10mM PBS/500 mM NaCl, 0.09% NaN3, pH 7.2...
Rad51B...
Biology Products: