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:9/2/2014)... issue of The FASEB Journal , ... the leading cause of blindness in adults, diabetic ... advance involves quantifying the early molecular changes caused ... Using new probes developed by scientists, they were ... diabetic retinopathy. , "My goal is to establish ...
(Date:9/2/2014)... D.C., September 2, 2014 A study published ... Journal of the American Academy of Child and ... diagnosed with a psychiatric diagnosis had an increased ... to antipsychotics. , Using data from the nationwide ... Dr. Ren Ernst Nielsen, Psychiatry, Aalborg University Hospital, ...
(Date:9/2/2014)... Bavaria, the Tithonian Konservat-Lagersttte of lithographic limestone is ... of emblematic fossils from that area (for example, ... found fossil insects in the French equivalent of ... species representing the oldest known water treader. , ... Bavarian outcrops, fewer fossils have been obtained from ...
Breaking Biology News(10 mins):Molecular probes permit doctors to detect diabetic retinopathy before vision fails 2Risk of diabetes in children and adolescents exposed to antipsychotics 2Exceptionally well preserved insect fossils from the Rhône Valley 2
... perennially covered in ice. It is exposed to severe ... and, during the winter, 24-hour darkness. But, for the ... To study them, Dr. Rachel Morgan-Kiss from the University ... to sample the ice-covered lake. The article describing her ...
... the most valuable possessions in the most secure safes, ... at the European Molecular Biology Laboratory,s European Bioinformatics Institute ... Nature , shows that bacteria have evolved a ... reducing the risk of self-destruction. The findings answer a ...
... of Gothenburg, Sweden, have identified the genetic variations ... in Nature Genetics and involving leading researchers ... facts that women with a higher proportion of genetic ... percent increased fracture risk. Osteoporosis is a common ...
Cached Biology News:Research on carbon-consuming life-forms in Antarctica published in JoVE 2A matter of priorities 2Scientists have discovered genes that increase the risk of osteoporosis and fractures 2
(Date:9/2/2014)... - BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced ... three large odour control systems for waste water treatment plants ... are consistent with the market resurgence in North ... CEO. "After a difficult period of restraint in our core ... sales growth. Our lower cost structure, technology improvements and supply ...
(Date:9/2/2014)... September 2, 2014 Culot brings ... and lab management services  BioData, producer of ... pleased to announce the appointment of Louis Culot ... served as VP Marketing and Business Development at BioDiscovery ... and clinical applications. Previously, Culot worked for ...
(Date:9/1/2014)... The global oligonucleotide synthesis market is ... $1,070.7 million in 2014, growing at a CAGR ... oligonucleotide synthesis market is categorized on the basis ... geography. The synthesized oligonucleotides segment is expected to ... synthesis market during the forecast period, owing to ...
(Date:8/31/2014)... Available spectra is similar for ... and cultivation of a wide range of plants. ... with proven patented and pending wide spectrum technology. ... in critical applications in contrast to growth spectra ... customers have a large variety of differently sized ...
Breaking Biology Technology:Louis Culot Appointed as BioData's CEO 29.8% CAGR for Oligonucleotide Synthesis Market Globally to 2019 Says a New Research Report Available at RnRMarketResearch.com 29.8% CAGR for Oligonucleotide Synthesis Market Globally to 2019 Says a New Research Report Available at RnRMarketResearch.com 39.8% CAGR for Oligonucleotide Synthesis Market Globally to 2019 Says a New Research Report Available at RnRMarketResearch.com 49.8% CAGR for Oligonucleotide Synthesis Market Globally to 2019 Says a New Research Report Available at RnRMarketResearch.com 5
... Goal Is to Lower the Cost of Genome ... Information Universally Available for Routine Medical Care-PHILADELPHIA, Feb. ... whole genome imaging and analysis platforms for biomedical ... that its low-cost nanofluidic genome analysis technology, along ...
... 24 Environment of Care managers can ... achieve and maintain their organization,s environment of care ... series of brief, web-based audio interviews with EC experts ... or download at http://www.eheinc.com/ec_bits.htm feature expert advice ...
... ABBOTT PARK, Ill., Feb. 24 Abbott ( ... Healthcare Conference on Tuesday, March 10, 2009. Thomas ... officer, will make a formal presentation on the company ... the presentation will be accessible through Abbott,s Investor Relations ...
Cached Biology Technology:BioNanomatrix's Revolutionary Whole Genome Analysis Platform Named to MIT Technology Review's Annual 10 Emerging Technologies List 2BioNanomatrix's Revolutionary Whole Genome Analysis Platform Named to MIT Technology Review's Annual 10 Emerging Technologies List 3Web-based Audio Interviews Keep Environment of Care Managers Up-to-Date on Key EC Compliance Issues 2
Extra Large bottle for hybridization 300 x 70mm...
Request Info...
... Microtube Rotor is TWO ROTORS in ONE! ... You can spin both 1.5 - ... polypropylene rotor design provides excellent chemical resistance ... rotors are fully compatible with common decontamination ...
... Wellpro 384, compatible ... automated liquid handling system ... quickly and accurately prepares ... dilutions. The Wellpro ...
Biology Products: