Navigation Links
Return of top predators is key to ecological future
Date:4/23/2010

CORVALLIS, Ore. Sufficient advances have been made about the importance of top predators in ecosystem function that it's time to move from discussing the issue to acting upon it, a conservation biologist from Oregon State University suggests in a new book.

In "The Wolf's Tooth: Trophic Cascades, Keystone Predators and Biodiversity," just published by Island Press, Cristina Eisenberg outlines the many research findings in recent decades about "trophic cascades," or the string of problems that can be created when keystone predators ranging from wolves to sharks or even spiders are removed from an ecosystem, allowing other species to disproportionately flourish and cause havoc.

In particular, Eisenberg said, more has been learned about the significance of top predators on terrestrial systems, since their role in marine ecosystems was already more advanced. Scientists have now come to understand how wolves, cougars, bears and other leading carnivorous predators, which humans largely eliminated by the early 20th century, served a critical role in ecosystem function.

"The ecological concept of the 1990s was biodiversity, and that's important," said Eisenberg, who is the Boone and Crockett Fellow and a doctoral student in the OSU College of Forestry. "But in the next generation we want the concept of trophic cascades to have that same general awareness, because it's important too and essential to maintaining biodiversity. And we already know enough that it's time to start using these concepts to help ecosystems recover, not just in national parks or wilderness areas but everywhere."

These concepts have gained the most public awareness, Eisenberg said, with the return of wolves to Yellowstone National Park. Wolves have helped to control the overgrazing done by elk, both by reducing their populations and also changing their behavior in what has been identified as "the ecology of fear." As a result, young aspen and willows are be
'/>"/>

Contact: Cristina Eisenberg
cristina.eisenberg@oregonstate.edu
406-270-5153
Oregon State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Aware, Inc. Announces Richard Moberg to Return as CFO
2. Unfavorable ocean conditions likely cause of low 2007 salmon returns along West Coast
3. A switch that controls whether cells pass point of no return
4. Atlantic tuna return thousands of miles to birthplace to spawn
5. Scientists gather to protect global food security from return of devastating wheat fungus
6. Science returns to the Capitol Hill spotlight at March 24 exhibition
7. Tennessee foresters helping to return chestnuts to American forests
8. Proposed mission would return sample from asteroid time capsule
9. Science returns to Capitol Hill spotlight at April 14 exhibition
10. Hidden interactions between predators and prey: evolution causes cryptic dynamics in ecology
11. Researchers view swimming tactics of tiny aquatic predators
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/8/2015)... FRANKLIN LAKES , N.J. and NEW YORK ... and Company) and Guidepoint today announced ... selected start-up healthcare companies with free access to Guidepoint,s ... mentoring several start-ups that are developing cutting-edge technologies to ... of a dedicated Guidepoint research manager, each start-up entrepreneur ...
(Date:7/8/2015)... , July 8, 2015 The consumer ... this summer,s must have products such as wearables, smart wallets ... popularity for biometrics based devices continues to rapidly grow.  Biometrics ... (NASDAQ: NXTD ), Google Inc. (NASDAQ: GOOG ), ... FIT ), GoPro, Inc. (NASDAQ: GPRO ) and Baidu ...
(Date:7/7/2015)... , July 7, 2015  Based on its ... & Sullivan recognizes Credence ID, LLC with the ... Company of the Year Award. Credence ID has ... in its mission of offering enrollment and identification ... As Credence ID was formed by experts from ...
Breaking Biology News(10 mins):BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 3Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 2Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 3Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 4Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 5Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 6Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5
... light-sensing photoreceptor cells in the eye misfire and signal to ... reality they haven,t. For years this phenomenon remained a mystery. ... neuroscientists at the Johns Hopkins University School of Medicine have ... triggered by heat, as well, giving rise to these false ...
... GenomeQuest Inc. today announced it has appointed Gerry A. ... genomics research, as the company,s first Healthcare Innovation Officer. ... applying the company,s proprietary technology to the development of ... working closely with clinicians at hospitals and academic research ...
... of years, the genomes of malaria parasites and humans have ... geneticists, in collaboration with an international team of scientists, have ... genome has fought back. The international team ... with appointments in the genetics department in Penn,s Perelman School ...
Cached Biology News:Why animals don't have infrared vision 2Why animals don't have infrared vision 3Gerry A. Higgins, Ph.D. Joins GenomeQuest to Foster Development of Whole Genome Diagnostics 2Penn researchers show new evidence of genetic 'arms race' against malaria 2Penn researchers show new evidence of genetic 'arms race' against malaria 3
(Date:7/30/2015)... Ascendis Pharma A/S (Nasdaq: ASND ... TransCon technology to address significant unmet medical needs, ... Phase 2 study to evaluate the safety and ... treatment-naïve, pre-pubertal children with growth hormone deficiency, or ... the top-line results from our Phase 2 pediatric ...
(Date:7/30/2015)... NH (PRWEB) , ... July 30, 2015 , ... ... homogenizer for advanced fluid applications and designed for continuous operation up to 1500 ... and sterilization-in-place, ensuring safety, efficiency, and preventing toxic contamination. , The Pony™ NS2006L ...
(Date:7/29/2015)... 29, 2015 US-Australian drug discovery company, Novogen ... it is committed to progressing its ground-breaking technology platforms ... and to ensure the Company delivers the best value ... Iain Ross , said the Company currently had an ... programs, discovery programs and academic partnerships and initiatives, and ...
(Date:7/29/2015)... , July 29, 2015  AsureQuality and ... molecular testing for applications in food and primary ... battery powered real-time PCR device, the Freedom4. ... right through to the supermarket shelf for producers, ... includes involvement in animal disease control and pest ...
Breaking Biology Technology:Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 6Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 7GEA Announces the Pony™ NS2006L… a Self-contained, High Pressure Lab Homogenizer for Product Development Ensuring Maximum Efficiency and Safety 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10AsureQuality and Ubiquitome Partner on Applications for Mobile Molecular Food Safety Testing 2
... DECATUR, Ill., Oct. 29 Archer Daniels ... industrial chemicals group with a focus,on dramatically increasing ... ADM,s processing expertise, fermentation and,separation technologies and global ... chemicals by working to commercialize,additional chemicals from renewable ...
... Innovator in,Ultrasound for more than 50 years, announced today ... advanced cardiac and,vascular imaging, the ProSound Alpha 10 and ... Heart Association, at the Orange County,Convention Center in Orlando, ... and the Alpha 10 incorporate all of the standard,cardiovascular ...
... at American Academy of Pediatrics National Conference & ... ... NORRITON, Pa., Oct. 29 Tengion,Inc., a leader in regenerative medicine, ... the American Academy of,Pediatrics (AAP) National Conference and Exhibition demonstrate the ...
Cached Biology Technology:ADM Forms Industrial Chemicals Group 2ALOKA to Introduce New 'ProSound' Diagnostic Ultrasound Systems at the Scientific Session 2007 of American Heart Association, 4th to 7th of November 2007 in Orlando, Florida 2ALOKA to Introduce New 'ProSound' Diagnostic Ultrasound Systems at the Scientific Session 2007 of American Heart Association, 4th to 7th of November 2007 in Orlando, Florida 3Preclinical Efficacy Data Demonstrate Ability of Tengion's Neo-Bladder Augment to Restore Bladder Function 2Preclinical Efficacy Data Demonstrate Ability of Tengion's Neo-Bladder Augment to Restore Bladder Function 3
... StabilZyme AP Conjugate Stabilizer is ... purified bovine protein and other non-toxic ... (4-Morpholine-ethanesulfonic acid), pH 5.5 6.5. ... of 0.02% methylisothiazolone and 0.02% bromonitrodioxane ...
... valuable tool for removing SDS detergent from ... in biological samples imparts a negative charge ... enzymatic activity during digestion, and suppresses ion ... mass spectrometry analyses. We recommend that ...
... able to accept cell lines produced according to ... lines must be accompanied by a certificate to ... the requirements of cGMP and that they have ... fungi. What are the benefits of the cGMP ...
Standard and modified oligonucleotides up to 150 nt-long at any scale for broad applications. Price starts from 30p/base (10 nmole scale)....
Biology Products: