Navigation Links
GPS study shows wolves more reliant on a cattle diet
Date:3/28/2011

Cattle ranchers in southwestern Alberta have suspected it for a long time and now, GPS tracking equipment confirms it: wolf packs in the area are making cow meat a substantial part of their diets.

University of Alberta researchers tracked wolves to bone yards, where ranchers dispose of dead cattle, and to sites of fresh cow kills. The study was done over two grazing seasons in 2008 and 2009. The vast study area in southwestern Alberta includes private ranchland and wooded public lands bordering the Rocky Mountains.

Researchers found that during the summer months when livestock was set out to graze on public lands, cattle made up to 45 per cent of the diet for the three wolf packs in the study. This shows a seasonal switch from the wolf's usual pattern of wild prey in the non-grazing season to cattle in the grazing season.

Four wolves in three different packs were outfitted with radio collars that included a standard tracking beacon and a device that collected and saved detailed GPS location data.

When the researchers used the radio signals to locate the general area of the collared wolf, the detailed, hourby-hour GPS data showing the wolf's movements was uploaded into a handheld device.

The researchers looked for GPS clusters, the locations on the map where the wolves spent a lot of time and went to a total 698 sites where the wolves had gathered. The fieldwork turned up locations where 50 cows were killed.

Researchers calculated that, during the winter months, 85 per cent of the wolves' scavenged (already dead animals) feeding events were at bone yards located on land belonging to ranchers. The researchers noted that often the bone yards were located within a few hundred metres of grazing cattle. The ease of feeding at bone yards can also attract other predators such as grizzly bears and cougars.

Lead U of A researcher, Andrea Morehouse says the most alarming element of the research is that
'/>"/>

Contact: Brian Murphy
brian.murphy@ualberta.ca
780-492-6041
University of Alberta
Source:Eurekalert

Page: 1 2

Related biology news :

1. Russian boreal forests undergoing vegetation change, study shows
2. Spicing up your love life possible, study finds
3. Study finds weight training safe for pregnant women
4. Study predicts large regional changes in farmland area
5. Study shows living at high altitude reduces risk of dying from heart disease
6. New study quantifies total costs of fragility fractures in 6 major European countries
7. Study finds remarkable diversity of lichen species in Florida state park
8. UC Riverside geneticists to study how plants adapt to a changing environment
9. Experimental radioprotective drug safe for lung cancer patients, says Pitt study
10. Evolutionary winners and losers revealed in collaborative study
11. Study finds that overweight people really are big-boned
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2014)... , Dec. 18, 2014 Research and Markets ( ... Market Monitor: North America Perimeter Security Systems Market" report ... The North American perimeter security market is estimated ... 2019. Although the U.S. market holds a larger share in ...
(Date:12/17/2014)... Dec. 15, 2014 The Defense Logistics Agency is ... and prevent counterfeit microcircuits from entering into its supply ... in-house microcircuit anti-counterfeit initiative dubbed DNA marking. The capability ... their reliability throughout the supply chain. The new quality ...
(Date:12/17/2014)... Dec. 16, 2014  Automation is fundamentally transforming the travel ... international borders. Over the past decade, ePassports, biometric readers, ... self process through border control via eGates and Automated ... airports, seaports, and land borders across the globe. ...
Breaking Biology News(10 mins):Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... part in the National Science Foundation,s (NSF) Faculty ... additional distinction as winners of Presidential Early Career ... 2006 competition. The PECASE program recognizes outstanding ... show exceptional potential for leadership at the frontiers ...
... wildfires can contribute as much as vehicles to carbon ... highly variable. New research published in the online open ... and suggests fires will complicate emissions monitoring and modelling ... Atmospheric Research and Jason Neff of the University of ...
... State University have designed a revolutionary laser technique which ... damaging human cells and may also help reduce the ... The research, published on Thursday November 1 in ... discusses how pulses from an infrared laser can be ...
Cached Biology News:Beginning scientists receive presidential awards 2Beginning scientists receive presidential awards 3Beginning scientists receive presidential awards 4Beginning scientists receive presidential awards 5Beginning scientists receive presidential awards 6Beginning scientists receive presidential awards 7US faces burning emissions issue 2
(Date:1/22/2015)... (PRWEB) January 22, 2015 Protocol Networks ... The growing team of brand-neutral, independent consultants, Protocol Networks ... Rogers explained that over the years, his company has ... Moroso, Town of Plainfield, as well as others. With ...
(Date:1/22/2015)... 22, 2015 Controlled Substance Compliance Services ... helps companies check the legal requirements around using controlled ... China. , As their international operations expand and ... software solutions built as a result of the first ...
(Date:1/22/2015)... 22. 2015  Varian Medical Systems (NYSE: VAR ), ... for its commitment to sustainability with inclusion on a prestigious ... highest ranked healthcare equipment company among the Corporate Knights Global ... Economic Forum at Davos, Switzerland . ...
(Date:12/24/2014)... YORK , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, Inc. ... critical areas, announced the closing of an underwritten public offering ... up to an aggregate 3,500,000 shares of common stock, at ... warrant.  The warrants have a per share exercise price of ...
Breaking Biology Technology:Protocol Networks Brings Independent Technology Consulting to the Constitution State 2Global Compliance Service for Controlled Substances to Expand to China 2Varian Honored Among World's 100 Most Sustainable Corporations 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3
... SAN DIEGO, Feb. 9 PacificGMP, the ... manufacturing for its client partners, announced today ... with LigoCyte Pharmaceuticals, Inc. Under the collaborative ... banks and will provide storage services under ...
... Cancer Clinics of Excellence, LLC, the nation,s only ... of its 62nd comprehensive Evidence-Based Treatment Protocol covering ... the 4th Annual Community Oncology Conference today. "Our ... prepared to launch the protocols across its network ...
... Women Detect Serious Health Problems While Making Charitable DonationsSANTA ... hurts. But when it comes to women,s health, it,s ... in the United States dies of heart disease. Although ... women, most people fail to make the connection between ...
Cached Biology Technology:PacificGMP and LigoCyte Pharmaceuticals Announce cGMP Manufacturing Collaboration 2Cancer Clinics of Excellence (CCE) Releases 62nd Evidence-Based Treatment Protocol 2BioIQ Supports American Heart Month to Raise Awareness About Heart Disease, the #1 Killer of Women 2