Navigation Links
Who's afraid of the big, bad wolf? Coyotes
Date:9/11/2007

NEW YORK (September 11, 2007)While the wily coyote reigns as top dog in much of the country, it leads a nervous existence wherever it coexists with its larger relative, the wolf, according to a new study from the Wildlife Conservation Society. In fact, coyote densities are more than 30 percent lower in areas that they share with wolves.

The paper, which appears in the most recent edition of the Journal of Animal Ecology, details the results of a study examining the effects of wolves on the distribution and abundance of coyotes in those areas.

The study tests the hitherto unproven hypothesis that wolves limit the range and numbers of coyotes in places where the two species compete with one another, said Dr. Kim Murray Berger, a WCS researcher and lead author of the study. In this instance, the findings do support the theory, but coyotes can hold their own against wolves by living in packs.

Working in Grand Teton National Park in the southern Greater Yellowstone Ecosystem, researchers followed radio-collared coyotes at wolf-abundant and wolf-free locations. They found that while coyotes remained the numerically dominant predator in locations where wolves exist, the densities of coyotes was substantially lower in areas containing both canid species. Specifically, coyote densities were 33 percent lower in wolf-abundant sites in the Tetons. Similarly, coyote densities declined 39 percent in Yellowstone National Park after wolves were recently reintroduced there.

In terms of direct mortality, actual predation of wolves on coyotes was low, accounting for some 16 percent of the radio-collared animals. Also there was a clear indication that, with coyotes, theres safety in numbers; transient coyotes without packs were more likely to fall prey to wolves, with 56 percent of transient coyote mortality being attributable to wolves. Also, transient coyotes in wolf-abundant sites were 117 percent more likely to leave an area frequented by wolves.
'/>"/>

Contact: Stephen Sautner
ssautner@wcs.org
718-220-3682
Wildlife Conservation Society
Source:Eurekalert

Page: 1 2

Related biology news :

1. Why are coyotes getting more aggressive?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... -- Arizona turned its newborn screening program into a model ... earning it the first-ever Newborn Screening Quality Award from the ... Will Humble, M.P.H., Arizona,s Department of Health Services director, with ... established a policy of full transparency for the length of ... to the lab for analysis, and set a target of ...
(Date:9/18/2014)... from several disciplines will be celebrated tonight at the ... in improving the health of premature infants and in ... The researchers, whose work was supported by the National ... former Atomic Energy Commission, will be honored at a ... A bipartisan group of Members of Congress will be ...
(Date:9/18/2014)... Elsevier, a world-leading provider of scientific, technical and ... Research Management Society (ARMS), recognized the academic research ... Scopus Young Researcher of the Year Awards. , ... National Convention Centre and in conjunction with the ... representing Australia,s and New Zealand,s scientific community. Guest ...
Breaking Biology News(10 mins):March of Dimes honors Arizona with first-ever newborn screening award 2March of Dimes honors Arizona with first-ever newborn screening award 33rd annual Golden Goose award ceremony honors 8 researchers; Unusual work had big results 2Elsevier and Australasian Research Management Society award scientists at Scopus ceremony 2
... and thrust," humans try to bank money to obtain financial ... gains. Many humans also end up in poverty traps, where ... living they find themselves unable to raise their heads above ... period, Gregory Rasmussen, currently at Lady Margaret Hall Oxford, intensively ...
... 1980s when they stumbled on small sugar molecules lurking in ... to be there, but they certainly weren,t supposed to be ... on and off. The conventional wisdom was that the ... determining their actions -- fell to phosphates, in a ...
... Laboratories engineer, and Bruce Osborn, chief operating officer of ... Mechanics magazine Breakthrough Innovator Award Oct. 15 during a ... Sponsored by Bristol-Myers Squibb, the Breakthrough Awards celebrate ... behind them. The joint Sandia/SES award is among 21 ...
Cached Biology News:Running on rocket fuel 2Johns Hopkins researchers detect sweet cacophony while listening to cellular cross-talk 2Sandia, SES win Popular Mechanics Breakthrough Innovator Award 2
(Date:9/18/2014)... September 18, 2014 HealthTronics, ... and interventional radiology products and services, announced that ... cryotherapy and cryoablation) versus external beam radiotherapy (EBRT) ... the American Urological Association (MAAUA) Annual Meeting in ... Relative Effectiveness of Cryosurgery and External Beam Radiation ...
(Date:9/18/2014)... September 18, 2014 A novel robotic ... MRI scanner is currently being tested as part of ... Hospital in Boston with the aim of determining if ... make prostate cancer biopsies faster, more accurate, less costly, ... also has the potential to deliver prostate cancer therapies ...
(Date:9/18/2014)... (PRWEB) September 18, 2014 Texas ... John Sharp, Texas A&M Health Science Center CEO ... Department of Health and Human Services (HHS), State ... a national pandemic influenza vaccine manufacturing facility in ... an anchor for the Texas A&M Biocorridor – ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... the "Global N-acetylcysteine Industry Report 2014" ... Global N-acetylcysteine Industry Report 2014 is a professional ... the global N-acetylcysteine industry. The report ... definitions, classifications, applications and industry chain structure. The ...
Breaking Biology Technology:HealthTronics Announces Data Comparing Cryotherapy Versus Radiation for Treating Prostate Cancer Poster Presented at the American Urological Association Regional Meeting 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Texas 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 N-acetylcysteine Industry Report 2014 2
... BioStorage Technologies, Inc.,(BST), announces the appointment of ... European operations in Griesheim, Germany. Hoffer,joins BST with ... fields of,clinical pharmacology and toxicology. In his new ... Chief Operating Officer for BST, and will,manage all ...
... Managed Care ... Facilities, ... ), a leading developer of,biosensor and microprocessor technologies for use in ... professional pulse oximeters; the PulseOx 6000(TM) and PulseOx,6100(TM)., At the ...
... declares spirit of hope and focus on mission, ... today,named Northwestern Medical Faculty Foundation as its expected ... proton therapy cancer treatment,and research center to be ... miles west of Chicago., The announcement came ...
Cached Biology Technology:BioStorage Technologies Appoints Dr. Wolfgang Hoffer as Managing Director of European Operations 2SPO Medical Begins Shipping PulseOx 6000(TM) and PulseOx 6100(TM) 2SPO Medical Begins Shipping PulseOx 6000(TM) and PulseOx 6100(TM) 3NIU Seeks OK for New Proton Cancer Treatment and Research Center 2NIU Seeks OK for New Proton Cancer Treatment and Research Center 3