Navigation Links
Hareless: Yellowstone's rabbits have vanished, study says
Date:2/14/2008

NEW YORK (February 14, 2008) A new study by the Bronx Zoo-based Wildlife Conservation Society found that jack rabbits living in the Greater Yellowstone Ecosystem have apparently hopped into oblivion. The study, which appears in the latest issue of the journal Oryx, also speculates that the disappearance of jack rabbits may be having region-wide impacts on a variety of other prey species and their predators.

According to the study, historical records from more than 130 years ago indicate that white-tailed jack rabbits were once locally abundant in Greater Yellowstone, a 60,000 square kilometer (23,166 square mile) ecosystem that contains both Grand Teton and Yellowstone National Parks. However, the WCS study found that no jack rabbit sightings could be confirmed in Yellowstone since 1991 and only three in Grand Teton since 1978.

No one knows what caused the rabbits to disappear, according to the studys lead author, Dr. Joel Berger, a Wildlife Conservation Society conservationist, and professor at the University of Montana. It could be disease, extreme weather, predation or other factors, Dr. Berger said. Since the rabbits blipped off without knowledge, there has simply been no way to get at the underlying cause.

Dr. Berger believes that the absence of jack rabbits historically important prey species in the Greater Yellowstone Ecosystem may be causing elevated predation by coyotes on juvenile elk, pronghorn and other ungulates. Elsewhere, when rabbit densities drop predators often turn to preying more on livestock, according to the study. But without baseline data on rabbit numbers in Greater Yellowstone, assessing the impacts of predators such as grey wolves, which were reintroduced in 1995, becomes more difficult.

Lacking a sense of historical conditions, it will always be difficult to decide whether current systems function ecologically like past ones, said Dr. Berger.

Berger goes on to suggest that wildlife managers sh
'/>"/>

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

Page: 1 2

Related biology news :

1. Studying rivers for clues to global carbon cycle
2. Study confirms that low-calorie sweeteners are helpful in weight control
3. Accelerometer backpacks aid study of gliding behavior in the flying lemur
4. Slow-motion video study shows shrews are highly sophisticated predators
5. MIT applies engineering approach to studying biological pathways
6. Study of successful drug targets could hasten development of new medications
7. Conservation strategies must shift with global environmental change, says CU-Boulder study
8. Virginia Tech plant scientist leads study on genomics of parasitic plants
9. Smithsonian study: Sediment prediction tools off the mark
10. Prison study to investigate link between diet and behavior
11. Queens study connects obesity with nervous system
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Hareless: Yellowstone's rabbits have vanished, study says
(Date:9/23/2014)... Rice University scientists who are fighting a cyberwar against ... clinician,s most powerful ally. , "Recent research has found ... the immune system, and we studied the interplay between ... might turn the tables on cancer," said Rice University,s ... in the Early Edition of the Proceedings of ...
(Date:9/23/2014)... the washing up, negotiating rights to the TV remote control ... university for the new academic year are about to learn ... business. , And now research from academics at The University ... to monitor their energy usage in the home could be ... a team of technology experts and psychologists found that meters ...
(Date:9/23/2014)... 2014 Research and Markets  has announced ... and Opportunities, 2019" report to their offering. ... enhancing security and protection in private as well as ... country,s government is focusing on using biometric systems to ... national IDs that are of crucial importance to the ...
Breaking Biology News(10 mins):Immune system is key ally in cyberwar against cancer 2Immune system is key ally in cyberwar against cancer 3Smart meters could cause conflict for housemates, study shows 2Smart meters could cause conflict for housemates, study shows 3India Biometrics Market Forecast and Opportunities, 2019 2India Biometrics Market Forecast and Opportunities, 2019 3
... Military, homeland security, law enforcement and other first-responder ... to attend the 2009 Force Protection Equipment Demonstration ... 600 exhibits will be presented at Stafford County ... Quantico, VA. Live-fire small arms and explosives survivability ...
... Technology (Caltech) and the University of California at San ... Caltech experimental data to show just how amino-acid chains ... Their insights were recently published in the February 10 ... of Sciences (PNAS). The paper details the ...
... human genome eight years ago, enormous progress has been ... of most human genes is still barely understood. An ... gene or protein is to compare its sequence with ... experimentally easier to investigate. From the functions of related ...
Cached Biology News:Demonstration Targets Terrorism 2Caltech and UCSD researchers shed light on how proteins find their shapes 2Relationships in rank and file 2Relationships in rank and file 3Relationships in rank and file 4
(Date:9/23/2014)... York , September 23, 2014 ... leading provider of  Closed System Transfer     Devices ... exclusive partnership with Taiwanese distributor MedFront Medical Technology Corporation.  Equashield,s ... in Taiwan , ... as the company continues to expand globally, and ...
(Date:9/23/2014)... 23, 2014 Dr. Williams says, “Find ... on healthcare offers a three phase process that can ... delivery system that would go far beyond anything previously ... the delivery of healthcare.” , “Every effort to improve ... to provide discernable progress throughout that system because all ...
(Date:9/23/2014)... England , September 23, 2014 ... launched with funding from Imperial Innovations, Cambridge Innovation Capital ... Inivata, a clinical cancer genomics company focused on ... analysis to improve cancer testing and treatment, today ... round led by Imperial Innovations and including Cambridge ...
(Date:9/22/2014)... and SANTA CLARA, Calif. , Sept. ... WBMD ), the leading source of health information, ... survey that provide novel insights regarding physician and ... and care.  Dr. Eric Topol , a leading ... who serves as both Editor-in-Chief of Medscape and Chief ...
Breaking Biology Technology:Equashield Enters Taiwan Following Expansion to Australia, Japan, China 2Dr. Ira Williams Offers the Healthcare Solution Necessary for Patient Safety Improvement 2Inivata Raises £4m to Realise the Potential of ctDNA Analysis to Improve Cancer Treatment Through Simple Blood Tests 2Inivata Raises £4m to Realise the Potential of ctDNA Analysis to Improve Cancer Treatment Through Simple Blood Tests 3Inivata Raises £4m to Realise the Potential of ctDNA Analysis to Improve Cancer Treatment Through Simple Blood Tests 4WebMD/Medscape Digital Technology Survey Reveals Unique Insights Into How Patients and Physicians Perceive the Role, Potential and Risks Associated with Digital Health Technologies 2WebMD/Medscape Digital Technology Survey Reveals Unique Insights Into How Patients and Physicians Perceive the Role, Potential and Risks Associated with Digital Health Technologies 3WebMD/Medscape Digital Technology Survey Reveals Unique Insights Into How Patients and Physicians Perceive the Role, Potential and Risks Associated with Digital Health Technologies 4
... Bowl MVP,s; 94 NFL First Round Draft Picks; ... ... BASKING RIDGE, N.J., Feb. 8 Millennium,Biotechnologies Inc., wholly-owned subsidiary ... SURGEX(TM) is,currently being administered as the exclusive post workout nutritional,product provided ...
... Calif., Feb. 8 Genomic Health,Inc. (Nasdaq: GHDX ... Chief Operations Officer, will present at the BIO CEO ... 2008 at 10:15 a.m. Eastern,Time., To access the ... Investor Relations section of Genomic Health,s,website at http://investor.genomichealth.com ...
... available in Spanish . , ANN ARBOR, ... from walking to operate a portable GPS locator, a ... neurotransmitter, research involving the University of Michigan shows. , ... Feb. 8 issue of the journal Science. Authors include ...
Cached Biology Technology:Tom Shaw's NFL Training Center Chooses SURGEX(TM) as Their Exclusive Post Training Nutritional Regimen 2Tom Shaw's NFL Training Center Chooses SURGEX(TM) as Their Exclusive Post Training Nutritional Regimen 3Knee brace generates electricity from walking 2
... service provides the premium quality siRNAs you ... siRNAs can be readily ordered online by ... or by providing the sense and antisense ... Silencer Validated and Silencer ...
... custom siRNA service provides the premium quality ... research. Custom siRNAs can be readily ordered ... target sequence, or by providing the sense ... Ambion's Silencer Validated and ...
dithiothreitol, sulfhydryl reducing agent, C4H10O2S2; MW: 154.24, 97% pure (minimum), CAS No: 27565-41-9, store at -20 C ...
... NAP-10 Columns, 50. For rapid and ... 10-mers) in less than 15 minutes by ... in distilled water containing 0.15% Kathon CG/ICP ... volume: 0.5 ml (NAP-5), 1 ml ...
Biology Products: