Navigation Links
Shifts in soil bacterial populations linked to wetland restoration success
Date:11/12/2008

DURHAM, N.C. -- A new study led by Duke University researchers finds that restoring degraded wetlands -- especially those that had been converted into farm fields -- actually decreases their soil bacterial diversity.

But that's a good thing, say the study's authors, because it marks a return to the wetland soils' natural conditions.

"It sounds counter-intuitive, but our study shows that in restored wetlands, decreased soil bacterial diversity represents a return to biological health," said Wyatt H. Hartman, a Ph.D. candidate in wetlands and environmental microbiology at Duke's Nicholas School of the Environment.

"Our findings are novel because they are the opposite of the response seen in terrestrial ecosystems, where restoration improves conditions from a more barren, degraded state," said Curtis J. Richardson, director of the Duke University Wetland Center and professor of resource ecology at the Nicholas School. Richardson is Hartman's faculty adviser.

Their report on the study will be published online this week by Friday in the Proceedings of the National Academy of Sciences.

Soils in undisturbed wetlands present harsh conditions, with elevated acidity and low oxygen and nutrient availability in which fewer bacterial groups can survive and grow, they explained. In comparison, former wetlands that have been drained, limed and fertilized for farming host greater soil bacterial diversity because they present conditions more suitable for bacterial growth.

"The bacterial communities in these fields almost resemble those found in wastewater treatment plants," Hartman noted.

Soil bacteria are essential to wetland functions that are critical to environmental quality, such as filtering nutrients and storing carbon. "The mixture of bacterial groups in wetland soils can reflect the status of wetland functioning, and the composition of these populations is as telling as their diversity," Richard
'/>"/>

Contact: Tim Lucas
tdlucas@duke.edu
919-613-8084
Duke University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. During exercise, the human brain shifts into high gear on alternative energy
2. Study links success of invasive Argentine ants to diet shifts
3. Nature study demonstrates that bacterial clotting depends on clustering
4. Predatory bacterial swarm uses rippling motion to reach prey
5. Gene against bacterial attack unravelled
6. Study reveals how viruses collectively decide the fate of a bacterial cell
7. New paper sheds light on bacterial cell wall recycling
8. Bacterial persistence in streams
9. A survivor in Greenland: A novel bacterial species is found trapped in 120,000-year-old ice
10. Bacterial slime helps cause serious disease
11. Tomato pathogen genome may offer clues about bacterial evolution
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/30/2014)... a massive collection of 20-million-year-old amber found in the ... effort is yielding fresh insights into ancient tropical insects ... is fully curated, a task that will take many ... collection in the world, the researchers report. , ... of a pygmy locust, a tiny grasshopper the size ...
(Date:7/30/2014)... Monash University Professor Steven Chown has been awarded ... Medal for Excellence in Antarctic Research. , SCAR, ... coordinates high quality international scientific research in the ... Antarctic region in the Earth system. The organisation ... Antarctic Treaty System, responsible for governing the region. ...
(Date:7/30/2014)... Progress in developing robust therapies for spinal cord injury ... has been slow. A great deal has been learned ... factors and the environmental factors that regulate axon growth, ... resulted in clinically available therapeutics. Prof. Lemmon and his ... therapeutic bottleneck has many root causes, but a consensus ...
Breaking Biology News(10 mins):Decades-old amber collection offers new views of a lost world 2
... Despite research efforts to find modern factors that would ... the gap is actually ancient and universal, according to ... almost every country, and the sex difference in lifespan ... said Daniel J. Kruger, a research scientist in the ...
... small, inexpensive remote-control plane as a sensing tool, also known ... team plans to test it over the Konza Prairie Biological ... performs as the team hopes, it will be made available ... it to obtain high-resolution images and reliable data. , The ...
... has been developed, which quite literally sucks the life ... place ozone-depleting chemicals, like methyl bromide, which are currently ... called metabolic stress disinfection (MSDD), was developed by Manuel ... (Journal of the Science of Food and Agriculture DOI ...
Cached Biology News:Evolutionary forces explain why women live longer than men 2K-Staters design and build a low-cost remote sensing tool for environmental studies 2K-Staters design and build a low-cost remote sensing tool for environmental studies 3
(Date:7/30/2014)... 2014 While administrative claims and ... research for a relatively long period of time, ... the use of these ‘big data’ for comparisons ... combining today’s powerful computer technology with the plethora ... data’ holds significant promise for identifying optimal interventions ...
(Date:7/30/2014)... SEGUNDO, Calif. , July 30, 2014 /PRNewswire/ ... contractor on the Fully Integrated Lifecycle Mission Support ... and Space Administration (NASA). Under the terms of ... Ames Research Center at Moffett Field, Calif. In ... support for bioscience flight development projects on the ...
(Date:7/30/2014)... (PRWEB) July 30, 2014 BCC Research ... Global Markets for Enzymes in Industrial Applications , the ... to nearly $7.1 billion by 2018, registering a five-year ... is estimated to be recorded in the detergent enzyme ... period. , Enzyme technology has influenced almost every sector ...
(Date:7/30/2014)... July 30, 2014  Orexigen Therapeutics, Inc. (Nasdaq: ... Day 180 List of Outstanding Issues (LOI) from the ... Use (CHMP) for the NB32 Marketing Authorization Application (MAA). ... an investigational drug candidate being evaluated for weight loss. ... 120 time point were adequately addressed by the Company ...
Breaking Biology Technology:Leveraging ‘Big Data’ - Methodological Considerations in Health Services Research, New Webinar Hosted by Xtalks 2Wyle Wins NASA's Fully Integrated Lifecycle Mission Support Services Contract 2Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 2Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 3Orexigen Receives CHMP Day 180 List of Outstanding Issues 2Orexigen Receives CHMP Day 180 List of Outstanding Issues 3
... HILL, N.J., Jan. 7 TriMix Laboratories LLC today,announced ... alternative for patients who fail on Viagra(R) type pills,and ... With twenty million,American men currently suffering with ED, current ... and more men who can,t tolerate the,side effects of ...
... Discovery Inc., a privately held,biopharmaceutical company developing genetically ... today announced Richard B.,Brewer, President and Chief Executive ... Conference on Tuesday, January 8 at 2:00 PM ... held January 7-10, 2008 at,the Westin St. Francis ...
... Jan. 4 Burrill & Company is pleased to,announce the following ... Director -- Bryant joined Burrill in 1998 ... molecular biologist. Bryant, a UC Berkeley graduate ... Cell Biology-Biochemistry, has served the Venture arm ...
Cached Biology Technology:Difficult to Treat Erectile Dysfunction Patients 2Difficult to Treat Erectile Dysfunction Patients 3ARCA Discovery, Inc. to Present at 26th Annual JPMorgan Healthcare Conference on January 8, 2008 2
... standard BioLogic LP system, 220-240 V, ... without fraction collection. The system includes ... accessory kit with MV-6 injection valve, ... conductivity cell, tubing and fittings kit, ...
Lyophilized solid. Suitable for evaluating functional activity of human complement components and for other research requiring a high level of hemolytic activity. ...
... system with colony-picking capabilities, 110-120 V, uses ... proteins, oligonucleotides, carbohydrates, lipids, and other biomolecules ... applications. This system can also be used ... micrometers in diameter and for inoculating 96- ...
The SmartSpec printer paper is used to record data generated by the SmartSpec Plus spectrophotometer. Supplied as 5 packs....
Biology Products: