Navigation Links
Study challenges long-held assumption about competition in disturbed ecosystems
Date:6/28/2010

Hurricanes, wildfires and influxes of pollutants create disturbances that can put ecological systems under extreme stress. Ecologists had believed that at times like these, competition between species becomes less important as all struggle to survive.

But a new laboratory study of microscopic organisms subjected to varying degrees of acoustic disturbance now challenges that assumption and could lead ecologists to reconsider how organisms compete during challenging times.

"The consistent role of competition at all levels of disturbance found in our study underscores the need for ecologists to examine competitive interactions and their consequences even in highly disturbed habitats," said Lin Jiang, an assistant professor in the Georgia Tech School of Biology.

Sponsored by the National Science Foundation, the research was reported June 28, 2010, in the early online edition of the journal Proceedings of the National Academy of Sciences. The study is believed to be the first to show experimentally that competition could be a factor in regulating ecological communities regardless of the intensity or frequency of disturbance.

Jiang and his team -- Cyrille Violle, formerly a postdoctoral fellow at Georgia Tech currently at the University of Arizona, and Georgia Tech biology graduate student Zhichao Pu -- conducted experiments with freshwater bacterivorous protists in artificial, simplified ecosystems called microcosms.

"A key advantage of this microcosm system is that the rapid reproduction of the microorganisms allowed us to examine multigenerational community dynamics, including competitive exclusion and stable coexistence, in a period of a few weeks," said Jiang.

The researchers assessed the ability of different species of single-celled eukaryotes called protozoa to cope with disturbance in the absence of competition, the competitive ability of species in the absence of disturbance, and the
'/>"/>

Contact: Abby Vogel Robinson
abby@innovate.gatech.edu
404-385-3364
Georgia Institute of Technology Research News
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
2. A study by the MUHC and McGill University opens a new door to understanding cancer
3. Study begins to reveal clues to the cause and progression of sepsis
4. Clones on task serve greater good, evolutionary study shows
5. New study warns limited carbon market puts 20 percent of tropical forest at risk
6. New study examines how rearing environment can alter navigation
7. Study links cat disease to flame retardants in furniture and to pet food
8. New continent and species discovered in Atlantic study
9. Study shows link between alcohol consumption and hiv disease progression
10. Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
11. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study challenges long-held assumption about competition in disturbed ecosystems
(Date:7/24/2014)... brewery has its own microbial terroir, meaning the microbial ... found in the product, creating the final flavor according ... Applied and Environmental Microbiology . This is the ... a sake brewery. , Many sake makers inoculate ... A. Mills of the University of California, Davis, but ...
(Date:7/24/2014)... cleanup experts gathered at NJIT this week for an ... the U.S. Environmental Protection Agency (EPA) to dredge toxic ... River. , The EPA has called the plan, which ... and capping sections of the riverbed, one of the ... would be dredged and disposed off-site. , "We need ...
(Date:7/24/2014)... research into the potato genes that best adapt to ... in rainfall and increased extremes of hot and cold ... in order to create new potato varieties that will ... seeking to find out how the current potato varieties ... higher and lower temperatures. , This research is part ...
Breaking Biology News(10 mins):The microbes make the sake brewery 2Experts Weigh the Pros and Cons of a $1.7 Billion EPA Cleanup Plan for the Passaic River at an NJIT 2Neiker-Tecnalia is researching the potato genes that best adapt to climate change 2
... Mich.---By mimicking the structure of the silk moth,s antenna, ... better nanopore---a tiny tunnel-shaped tool that could advance understanding ... A paper on the work is newly published ... headed by Michael Mayer, an associate professor in the ...
... developed by researchers in Temple University,s College of Science ... cancer. The leptin receptor antagonist peptide, developed by ... attractive option for triple negative breast cancer treatment, especially ... their findings online in the European Journal of ...
... environmental researchers from across North America have been ... Based at Stanford University,s Woods Institute for the ... 1998 to help academic scientists make their knowledge ... program selects up to 20 mid-career academic environmental ...
Cached Biology News:Silk moth's antenna inspires new nanotech tool with applications in Alzheimer's research 2New peptide could be effective treatment for triple negative breast cancer 220 researchers selected as 2011 Leopold Leadership Fellows 220 researchers selected as 2011 Leopold Leadership Fellows 320 researchers selected as 2011 Leopold Leadership Fellows 4
(Date:7/24/2014)... 24, 2014 Your cell phone ... modeling lithium-ion battery storage capacity. , New research ... theoretical model created at Lawrence Livermore National ... predicts how carbon components will perform as electrodes. ... the urgent need for higher-performance batteries. Several key ...
(Date:7/24/2014)... , July 24, 2014  Neogen Corporation (Nasdaq: ... future forecasts of its potential revenue from new rodenticide ... to investors and analysts on July 22, 2014, Neogen,s ... analysts regarding this research. "It was my ... about the potential of a new type of rodenticide, ...
(Date:7/24/2014)... BETHESDA, Md. , July 24, 2014  Spherix ... to the fostering and monetization of intellectual property, today ... for the period ending June 30, 2014 on Monday, ... conference call at 10 a.m. ET on Monday, August ... to be led by the company,s CEO, Anthony ...
(Date:7/23/2014)... Emirates (UAE) (PRWEB) July 23, 2014 ... recently announced that its biobanking project, Provia ... Ph.D. to its growing Advisory Board. Scott Wolf ... pleased to have Dr. Vaught onboard with Provia’s ever-expanding ... and expertise that Provia’s management team brings to this ...
Breaking Biology Technology:Getting More Life out of Lithium-ion Batteries 2Neogen comments on SenesTech 2Spherix Schedules Shareholder Update Call 2Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 2Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 3Provia Laboratories Adds Dr. Jim Vaught, Ph.D., Former Chief of BBRB, to Advisory Board 4
... YORK, June 8, 2011 Reportlinker.com announces ... available in its catalogue: ... http://www.reportlinker.com/p0548785/Future-of-White-Biotechnology-in-China.html?utm_source=prnewswire&utm_medium=pr&utm_campaign=NoCategory ... referred to the third wave in biotechnology, ...
... 7, 2011 Vaxart, Inc., a San Francisco biotechnology company ... I clinical trial. This is the first clinical study evaluating ... The trial site is in the United States. ... is demonstrated with one vaccine, we can expect that later ...
... 7, 2011 Infrared Systems International (OTCBB: IFRS) is pleased ... pilot study of its NatuRx™ HIV/AIDS treatment and will push ... AquaLiv concluded a pilot study with two HIV/AIDS patients ... of the first reported AIDS victims on June 5th, 1981. ...
Cached Biology Technology:Reportlinker Adds Future of White Biotechnology in China 2Reportlinker Adds Future of White Biotechnology in China 3Reportlinker Adds Future of White Biotechnology in China 4Reportlinker Adds Future of White Biotechnology in China 5Vaxart Begins First Oral Vaccine Clinical Trial 2Infrared Systems International's Subsidiary, AquaLiv, Inc., Strives to Be a Game Changer in Fight Against HIV/AIDS 2Infrared Systems International's Subsidiary, AquaLiv, Inc., Strives to Be a Game Changer in Fight Against HIV/AIDS 3
The S. cerevisiae Hansen strains are the parental yeast strains from which the deletions were derived....
The DNA DipStick Kit is ideal for estimating nucleic acid concentrations and approximate yields. Works with ss- and ds-DNA, RNA, and oligonucleotides at concentrations as low as 0.1 ng/l....
... electronic from BRAND adds ergonomics and ... the only electronic, motor-driven repeating pipette ... including BRAND PD-Tip syringe tips, Eppendorf ... Tips,and VWRbrand Combi-Syringes. Select virtually any ...
The pYES2 vector is designed for native expression of your protein of interest in S. cerevisiae. It contains the URA3 gene for selection in yeast and 2 origin for high-copy maintenance....
Biology Products: