Navigation Links
Are wolves saving Yellowstone's aspen trees from elk?
Date:9/1/2010

e's aspen stands are unlikely to recover. "A landscape-level aspen recovery is likely only to occur if wolves, in combination with other predators and climate factors, further reduce the elk population," Kauffman said.

Predators play an important role in ecosystems, said Kauffman, and can influence plants by altering how many herbivores there are (by eating the herbivores) or by changing the behavior of herbivores (deterring them from areas where predators lurk). He adds, however, that considerable scientific debate exists regarding the importance of these two ways in which predators influence their prey. And this is especially true for large carnivores.

To complicate matters, predators use different hunting strategies there is the sit-and-wait strategy (as with a spider in a web, or a rattlesnake waiting for a mouse to leave its burrow) and the more active, go get 'em strategy (think cheetahs and wolves). "So, given that it takes a lot of energy to avoid a predator energy that could be used to stave off winter starvation we wanted to find out whether the prey of active-hunting predators such as wolves demonstrated risk-induced changes in areas where they foraged for food," Kauffman said.

To do this, the authors analyzed tree rings to discern when, in the last century, aspen stands stopped regenerating, examined whether aspen stands have begun to regenerate now that wolves have been reintroduced to the park and tested whether any differences in aspen regeneration were occurring in areas considered safe or risky for foraging elk. They used a landscape-wide risk map of elk killed by wolves over the first 10 years of wolf recovery. Finally, the authors experimentally fenced in young aspen suckers to compare the protection afforded to them by wolves versus that of a physical barrier that prevented elk browsing.

"The results were surprising and have led us to refute several previous claims regarding interactions among wolves, el
'/>"/>

Contact: Katie Kline
katie@esa.org
202-833-8773 x211
Ecological Society of America
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Beewolves protect their offspring with antibiotics
2. Bone deformities linked to inbreeding in Isle Royale wolves
3. Biologists solve mystery of black wolves
4. Saving the brains white matter with mutated mice
5. Preserving sperm vital to saving snot otter salamanders
6. Best hope for saving Arctic sea ice is cutting soot emissions, says Stanford researcher
7. African nations commit to saving chimps
8. Denmark cuts ART reimbursement under new savings scheme
9. Mother bats expert at saving energy
10. Saving the single cysteine: New antioxidant system found
11. Energy-saving powder
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Are wolves saving Yellowstone's aspen trees from elk?
(Date:9/18/2014)... its newborn screening program into a model other states can ... first-ever Newborn Screening Quality Award from the March of Dimes. ... Arizona,s Department of Health Services director, with the award at ... of full transparency for the length of time it takes ... for analysis, and set a target of having 95 percent ...
(Date:9/18/2014)... several disciplines will be celebrated tonight at the third ... improving the health of premature infants and in paving ... researchers, whose work was supported by the National Science ... Atomic Energy Commission, will be honored at a ceremony ... bipartisan group of Members of Congress will be on ...
(Date:9/18/2014)... 18, 2014 Elsevier, a world-leading provider of ... and the Australasian Research Management Society (ARMS), recognized ... at the 5th Scopus Young Researcher of the ... today at the National Convention Centre and in ... attended by guests representing Australia,s and New Zealand,s ...
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
... Jerrold Meyer and colleagues at the University of Massachusetts ... as an important new biomarker for stress in wild ... demonstrated in the current issue of the Journal ... lab manager Kendra Rosenberg and neuroscience and behavior graduate ...
... 2014) Researchers from Massachusetts Eye and Ear, ... Massachusetts General Hospital have demonstrated, for the first ... of vestibular schwannomas (also known as acoustic neuromas), ... hearing loss and tinnitus. Motivated by ...
... and why now? , Islands are renowned for their ... biogeography, and ecology. As a result of the devastating ... and island conservation has become a vital international concern. ... islands at an unprecedented pace, and now is an ...
Cached Biology News:Biomarker for stress hormones in polar bears, wildlife affected by global climate change 2Aspirin intake may stop growth of vestibular schwannomas/acoustic neuromas 2Island Biology 2014: An International Conference on Island Evolution, Ecology, and Conservation 2
(Date:9/19/2014)... Sept. 19, 2014  An entire month is dedicated ... neuropathies – Charcot-Marie-Tooth disease (CMT) – a debilitating neuromuscular ... extreme muscle atrophy, weakness, and foot and hand deformities. ... millions worldwide. CMT is a progressive disease, and over ... requiring mobility devices such as leg braces, wheelchairs and ...
(Date:9/19/2014)... CORAL SPRINGS, Florida , September 19, 2014 /PRNewswire/ ... biotech companies release latest developments, patents and results of ... (OTC: GNSZ), Eli Lilly and Company (NYSE: ... ), Celgene Corporation (NASDAQ: CELG ) and ... (OTCQB: GNSZ), a leader in developing prodrug therapeutics for ...
(Date:9/19/2014)... ROCKLAND, Massachusetts , September 19, 2014 ... with the 53rd European Society for Paediatric Endocrinology (ESPE) ... advancement of science and medical research in the field ... of Merck KGaA, Darmstadt, Germany , ... Growth Innovation (GGI) for 2014. The awards were announced ...
(Date:9/18/2014)... -- About POCT POCT, also ... laboratory. It helps in making fast clinical decisions, ... POCT is gaining popularity due to the increasing ... diabetes, heart disease, and obesity. It is generally ... minimize errors during the diagnosis of patients. POCT ...
Breaking Biology Technology:September is Charcot-Marie-Tooth (CMT) Awareness Month - Scheduled events, activities and important partnerships announced throughout the month! 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 3Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 4Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 6Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 7EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 2EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 3POCT Market in China 2014-2018 2
... After receiving FDA clearance for two new brain imaging ... to market its products to healthcare providers. , ,Approval ... for Devices and Radiologic Health in June allowed ... products to its line of brain mapping solutions based ...
... Healthcare has received permission to continue trading company stock ... listing standards. , ,Merge, a developer of medical imaging and ... will allow it to continue listing its common stock subject ... 29, 2006. The company was unable to comply with filing ...
... is a world-class company and object of emulation for many. ... true conglomerate, but one that is more than an investment ... from aircraft engines and massive power-generating turbines to financial services ... GE is knowledge intensive in all its businesses and global ...
Cached Biology Technology:Kyron wins FDA approval for brain imaging technology 2Growth through the eyes of GE's Immelt 2Growth through the eyes of GE's Immelt 3Growth through the eyes of GE's Immelt 4Growth through the eyes of GE's Immelt 5
... Immunogen: KLH-conjugated, synthetic peptide ... which [ Ac K] corresponds to acetyl ... Accession Number: NM_003493 ... Quality Assurance: Routinely ...
synaptotagmin XIV-like [Source:RefSeq_peptide;Acc:NP_114120] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
Naked1 Antibody Shipping Temperature: HOT Storage Temperature: -20C...
Rabbit polyclonal to IRS1 (phospho S636) ( Abpromise for all tested applications). entrezGeneID: 3667 SwissProtID: P35568...
Biology Products: