Navigation Links
Smithsonian researchers develop models to assess wetland health
Date:9/14/2007

Healthy wetlands perform vital ecological functions in a watershed. But assessing their condition and ability to perform those functions is not easy, especially as wetlands are disappearing fast due to human encroachment.

In a special issue of the journal Wetlands, Smithsonian scientists report a promising method of wetland assessment that will help environmental managers quickly take stock of wetlands across an entire watershed. Tools for this kind of rapid watershed-scale assessmentrelying on a few easily measurable key factorshave been previously unavailable to managers.

In three papers, Dennis Whigham, Donald Weller and Thomas Jordan of the Smithsonian Environmental Research Center and their colleagues present the results of a large-scale study that combines field studies and remote-sensing data to assess the ecological functioning of wetlands in a landscape.

The researchers based their study on an approach previously developed for assessing individual sites, called the Hydrogeomorphic (HGM) approach, in which ecological conditions are inferred from readily observable indicators, such as plant species present and the degree of human disturbance.

We took these methods for assessing wetland functions and expanded them to a whole-landscape scale, which is something that has not been effectively done before, said Whigham, who coordinated the project. These days, most land managers are not asking how to understand what is going on in an individual wetland, they want to manage resources at a much larger scale.

Wetlands are important buffers for flood control, can absorb pollutants and excess nutrients and provide critical habitats for many plants and animals, including some threatened and endangered species.

For this study, the researchers focused on non-tidal wetlands in the Nanticoke River watershed of Maryland and Delaware. Draining into the Chesapeake Bay, the Nanticoke system is one of the most biolog
'/>"/>

Contact: Kimbra Cutlip
cutlipk@si.edu
443-482-2325
Smithsonian
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Smithsonian scientists discover new marine species in eastern Pacific
2. Researchers discover way to make cells in the eye sensitive to light
3. Researchers find how protein allows insects to detect and respond to pheromones
4. Researchers Uncover Key Step In Manufacture of Memory Protein
5. NYU researchers simulate molecular biological clock
6. Researchers reveal the infectious impact of salmon farms on wild salmon
7. Researchers identify target for cancer drugs
8. Vital step in cellular migration described by UCSD medical researchers
9. ASU researchers finds novel chemistry at work to provide parrots vibrant red colors
10. UCSD researchers maintain stem cells without contaminated animal feeder layers
11. Researchers discover molecule that causes secondary stroke
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... fall foliage season that prompts millions of Americans to undertake ... and possibly last a little longer within a century, according ... peeping in some areas of the United States as summer ... in the journal Global Ecology and Biogeography . For ... is the state tree of New Hampshire could change ...
(Date:9/18/2014)... have built the first smartphone app that automatically ... trends. In other words, your smartphone knows your ... -- and how that affects you. , The ... and loneliness to their academic performance, also may ... example, to monitor mental health, trigger intervention and ...
(Date:9/18/2014)... generally seem to be cheerful, happy-go-lucky characters, so you ... on life. , In fact some dogs are ... of Sydney shows. , "This research is exciting ... dogs objectively and non-invasively. It offers researchers and dog ... how that changes," said Dr Melissa Starling, from the ...
Breaking Biology News(10 mins):Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4New Dartmouth smartphone app reveals users' mental health, performance, behavior 2New Dartmouth smartphone app reveals users' mental health, performance, behavior 3New Dartmouth smartphone app reveals users' mental health, performance, behavior 4Dogs can be pessimists too 2Dogs can be pessimists too 3
... moves through the forest boring tunnels inside the bark of trees, ... helper is a fungus that the insect plants inside the tunnels ... tiny, hitchhiking mite, which likewise carries a fungus for feeding its ... has grown even more curious. Writing in the Oct. 3 issue ...
... More than 8,000 international scientists are meeting at ... in the first-ever Joint Annual Meeting of seven ... their focus will be agricultural research. The following ... When: Oct. 5-9, 2008, Where: George R. Brown ...
... long pondered the possibility that life exists beyond Earth. ... for water, but "following the water" turns out to ... and satellites that possess liquid water is growing faster ... NASA Astrobiology Institute teams, Arizona State University researchers intend ...
Cached Biology News:Wielding microbe against microbe, beetle defends its food source 2Wielding microbe against microbe, beetle defends its food source 3Agricultural research highlighted in Houston 2NASA picks ASU research team to guide study of search for life 2NASA picks ASU research team to guide study of search for life 3
(Date:9/19/2014)... electricity, to move data would consume much less ... concern as chips, transistor counts rise. , Of ... light emitters, modulators, and detectors emitters are ... for optical chips is molybdenum disulfide (MoS2), which ... single, atom-thick layer. Other experimental on-chip light emitters ...
(Date:9/19/2014)...  Nektar Therapeutics (NASDAQ: NKTR ) ... analgesic profiles of a series of the company,s ... The preclinical research candidates were created using Nektar,s ... The analgesic properties of kappa receptor agonism are ... Kappa opioid receptors are expressed in the peripheral ...
(Date:9/19/2014)... September 19, 2014 Cereal grain ... industries will gather October 5–8, 2014, for the ... Island Convention Center in Providence, Rhode Island. The ... work of food scientists, chemists, microbiologists, nutritionists, and ... food production management. To date, 1,000 attendees have ...
(Date:9/18/2014)... Washington, USA (PRWEB) September 18, 2014 ... Representatives of a bill designed to stimulate development and ... jobs is being praised by leaders of SPIE, ... bill, the Revitalizing American Manufacturing and Innovation (RAMI) Act, ... The bill’s authors have said they are optimistic that ...
Breaking Biology Technology:Toward optical chips 2Toward optical chips 3Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 2Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 3Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 4Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 5Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 2Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 3House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 3
... MYSTIC, Conn., Feb. 2, 2011 Amarin Corporation plc ... with a focus on cardiovascular disease, today announced that ... Commercial Officer. In this role, Mr. Huff is responsible ... and sales planning and implementation, including product launch activities. ...
... all the interactions taking place correctly," said Anatoly Kolomeisky as he ... hub like a carnival ride gone mad. Kolomeisky, ... into a molecular midway where atoms dip, dive and soar according ... Kolomeisky and Rice graduate student Alexey Akimov have taken a ...
... Inc. (Vanda) (Nasdaq: VNDA ), a biopharmaceutical ... for central nervous system disorders, today announced it will ... Thursday, February 10, 2011, before the market opens. A ... at that time. Mihael H. Polymeropoulos, M.D., ...
Cached Biology Technology:Amarin Corporation Appoints Industry Veteran Paul E. Huff as Chief Commercial Officer 2Amarin Corporation Appoints Industry Veteran Paul E. Huff as Chief Commercial Officer 3Amarin Corporation Appoints Industry Veteran Paul E. Huff as Chief Commercial Officer 4What a ride! Researchers take molecules for a spin 2What a ride! Researchers take molecules for a spin 3Vanda Pharmaceuticals to Announce Fourth Quarter 2010 Financial Results on February 10, 2011 2
... extended-length microarrays are custom designed to meet ... are available: 8,455 features per array (2 ... features per array (1 array/slide). ... length - This extended length delivers ...
... intended for laboratory research use only. ... buffered formalin and embedded in paraffin. ... certified pathologists. Tissue cores were removed ... a new recipient paraffin block, in an ...
... Chemicon Select Tissue Arrays are intended ... individual tissues were fixed in neutral buffered ... identification and diagnosis was performed by certified ... their paraffin blocks and relocated into a ...
... the one mouse-click image analysis software ... It is the solution for high ... images. MicroVigene is empowered with VigeneTechs ... grid, regional 2D-curve fitting background correction ...
Biology Products: