Navigation Links
Loss of top animal predators has massive ecological effects
Date:7/14/2011

STONY BROOK, NY"Trophic Downgrading of Planet Earth," a review paper that will be published on July 15, 2011, in the journal Science, concludes that the decline of large predators and herbivores in all regions of the world is causing substantial changes to Earth's terrestrial, freshwater, and marine ecosystems. The paper claims that the loss of apex consumers from ecosystems "may be humankind's most pervasive influence on nature." The research was funded primarily by the Institute for Ocean Conservation Science at Stony Brook University with support from The Pew Charitable Trusts. The paper is co-authored by the Institute's executive director, Dr. Ellen K. Pikitch, and the lead author is Dr. James A. Estes, professor of ecology and evolution at the University of California at Santa Cruz.

The review, conducted by an international team of 24 scientists, illuminates the patterns and far-reaching impacts of predation and herbivory on the structure and dynamics of global ecosystems. The researchers relied on both experimental and observational evidence, which provides a strong basis for their conclusions.

"By looking at ecosystems primarily from the bottom up, scientists and resource managers have been focusing on only half of a very complex equation," said Dr. Estes. "These findings demonstrate that top consumers in the food web are enormous influencers of the structure, function, and biodiversity of most natural ecosystems."

Apex consumers include animals such as big cats, wolves, bison, sharks, and great whales, and are typically large, long-lived, and not amenable to laboratory experiments. As a result, the effects of removing them from ecosystems are not easy to document. The team of scientists reviewed an accumulation of theoretical and empirical evidence on how the decline of top predators and herbivores has affected Earth's ecosystems on land, in freshwater, and in the ocean. Their findings suggest that "trophic downgrading
'/>"/>

Contact: Cindy Yeast
cdyeast@earthlink.net
720-542-9455
Stony Brook University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. Researchers find animal with ability to survive climate change
3. Researchers note differences between people and animals on calorie restriction
4. Earliest animal footprints ever found -- discovered in Nevada
5. Details of evolutionary transition from fish to land animals revealed
6. Drug-embedded microparticles bolster heart function in animal studies
7. Swamping bad cells with good in ALS animal models helps sustain breathing
8. Moderate use averts failure of type 2 diabetes drugs in animal model
9. Grapes may aid a bunch of heart risk factors, animal study finds
10. Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25
11. Discovery of giant roaming deep sea protist provides new perspective on animal evolution
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Loss of top animal predators has massive ecological effects
(Date:3/3/2015)... FOREST, Calif. , March 3, 2015 ... the leading provider of advanced cryogenic logistics ... markets including immunotherapies, stem cells, cell lines, ... and reproductive medicine, today announced the expansion ... Cancer Research Centers, ("Fred Hutch") Clinical ...
(Date:3/2/2015)... , March 2, 2015  Businesses have ... Data protection company Tharon Rankins Enterprises has announced ... provides an ultra-safe way for businesses to protect ... financial transactions. Beconux is a ... Rankins Enterprises. Functioning similarly to an ATM machine, ...
(Date:2/25/2015)... LITTLE ROCK, Ark. , Feb. 25, 2015 ... of software and billing in the Health and ... software as well as to MYiCLUBonline.  The latest ... MYiCLUBonline and the inclusion of cardless check-in via ... demonstrated for the first time through interactive displays ...
Breaking Biology News(10 mins):Cryoport, Inc. Expands Support of Fred Hutchinson Cancer Research Center's Clinical Research Division 2Cryoport, Inc. Expands Support of Fred Hutchinson Cancer Research Center's Clinical Research Division 3Personal Data Protection Company Launches New Product 2ABC Financial Unveils New Software Enhancements 2ABC Financial Unveils New Software Enhancements 3
... PASADENA, Calif.A California Institute of Technology (Caltech)-led ... first proof that a targeted nanoparticleused as an ... bloodstreamcan traffic into tumors, deliver double-stranded small interfering ... gene using a mechanism known as RNA interference ...
... A potential new energy source so controversial that people once ... by the mainstream scientific community. That,s the conclusion of the ... topic "cold fusion" being held here for the ... National Meeting of the American Chemical Society (ACS). "Years ...
... , , Michael M. Graham, Ph.D., M.D., president, ... chair, SNM Medical Isotope Task Force, Jeffrey P. Norenberg, ... member, SNM Medical Isotope Task Force, WHEN:,Immediately ... over a two-week period when cancer, heart and brain ...
Cached Biology News:Caltech-led team provides proof in humans of RNA interference using targeted nanoparticles 2Caltech-led team provides proof in humans of RNA interference using targeted nanoparticles 3Caltech-led team provides proof in humans of RNA interference using targeted nanoparticles 4'Cold fusion' moves closer to mainstream acceptance 2'Cold fusion' moves closer to mainstream acceptance 3'Cold fusion' moves closer to mainstream acceptance 4
(Date:3/3/2015)... March 03, 2015 Experts and industry ... for one event: the Alltech REBELation exploring innovation, inspiration ... 17-20. Now in its 31st year, Alltech’s annual international ... countries, and the opportunity to join the REBELation at ... at 11:59 p.m. EST, at which point the standard ...
(Date:3/3/2015)... , March 3, 2015 /CNW/- SQI Diagnostics Inc. (TSX:V: ... proprietary technologies and products for advanced microarray diagnostics, ... CA, CFE  to its Management team. In his ... in its transition from a development stage to ... to advance the Company,s capital market strategy and ...
(Date:3/3/2015)... March 3, 2015  Regenicin, Inc. (OTC Bulletin Board: ... the development of and commercialization of regenerative cell therapies ... announced today that it has received the final payment ... Holdings, Inc. (OTC Bulletin Board: AMBS ). ... made the final payments due to Regenicin in the ...
(Date:3/3/2015)... Md. , March 3, 2015  RegeneRx Biopharmaceuticals, ... editorial in the scientific journal, Expert Opinion on ... his colleague, Dr. Zhenggang Zhang , at the ... reported that Thymosin beta 4 (TB4) has the ... remodeling 24 hours or more post-injury, leading to neurological ...
Breaking Biology Technology:World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 2World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 3World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 4SQI Diagnostics Appoints Chief Financial Officer 2SQI Diagnostics Appoints Chief Financial Officer 3Regenicin (RGIN) Receives $2.3 Million in Final Payment from Amarantus 2Regenicin (RGIN) Receives $2.3 Million in Final Payment from Amarantus 3Researchers at Henry Ford Hospital Propose Thymosin Beta 4 as Novel Way to Treat Neural Injury and Neurodegenerative Diseases 2Researchers at Henry Ford Hospital Propose Thymosin Beta 4 as Novel Way to Treat Neural Injury and Neurodegenerative Diseases 3
... Allos,Therapeutics, Inc. (Nasdaq: ALTH ), a biopharmaceutical ... molecule therapeutics for,the treatment of cancer, today announced ... a corporate overview at the 2007 UBS Global ... presentation will take place at 3:30 p.m. (Eastern) ...
... Feature Public and Private Life Science Companies from ... ... for the,Southern California life science community, is proud to announce that ... Diego,Marriott Del Mar from Oct. 31-Nov. 2, 2007. Featuring almost ...
... Tissue Ligating ... ... surgical device company, has been named a 2007 Innovator of the,Year ... for its newest Tissue Ligating Shears, the TLS3,which uses the Company,s ...
Cached Biology Technology:Allos Therapeutics to Present at the 2007 UBS Global Life Sciences Conference 2BIOCOM Announces Second Annual Investor Conference 2Society of Laproendoscopic Surgeons Names Starion Instruments 2007 Innovator of the Year 2
... Ambions MAXIscript In Vitro Transcription Kits ... 1 x 10 9 cpm/g. High ... in ribonuclease protection assays, in situ hybridization, ... be used for the synthesis of modest ...
Mouse H60 Allophycocyanin MAb (Clone 205326) ENTREZ GeneID: 15101...
... 250 ul (125 precipitations). ... easy pellet location.Efficient precipitation ... inert, compatible with most ... protocol. Category: DNA/RNA Synthesis ...
... for monitoring Aldolase tests. 2 levels ... targeted manufacturing values at 4 ± ... IU/L. 30-day shelf life once ... Level 1: 3 x 3 ml; ...
Biology Products: