Navigation Links
Precedent-setting evidence of the benefits of biodiversity
Date:4/6/2011

at exist in natural streams, including those dominated by riffles, runs, or calm pools. He then measured the ability of each algal community to soak up a nitrogen compound called nitrate. Cardinale chose nitrates to represent pollution in the study because excess nitrogen is the most common pollutant and the leading cause of degraded water quality worldwide.

Nitrogen is a nutrient found in all living organisms. But excess nitrogen is a pollutant that is usually carried to water bodies in runoff containing nitrogen-based fertilizers and nitrogen-bearing sewage.

Various species of algae were chosen to represent biodiversity in the study because algae are the primary organisms that take up excess nutrients, such as nitrogen, from streams, lakes and oceans.

The power of niche partitioning

Cardinale's results showed that nitrate uptake in the model streams increased linearly with species diversity. On average, the eight-species mix removed nitrate 4.5 times faster than did a single species grown alone.

Evidence that these results were produced by niche partitioning includes the domination of differently shaped forms of algae in different types of stream habitats, as predicted by ecological theory. For example, high velocity habitats were dominated by small, single-celled species of algae that grew in ways that were resistant to displacement by the force of fast-moving water. By contrast, low velocity habitats were dominated by large, filamentous algae that were vulnerable to such forces.

In addition, as part of the research, streams were experimentally simplified until they contained just one type of a habitat, and no opportunity for species to express their niches. Results showed that each of these simplified water bodies then collapsed to one dominant species that singularly drove all nitrate uptake, without species diversity influencing such uptake. These result confirmed that niche differences among species
'/>"/>

Contact: Lily Whiteman
lwhitema@nsf.gov
703-292-8310
National Science Foundation
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Genetic evidence for avian influenza movement from Asia to North America via wild birds
2. Mounting evidence shows health benefits of grape polyphenols
3. New evidence that people make aspirins active principle -- salicylic acid
4. Evidence of the Lost World -- did dinosaurs survive the end Cretaceous extinctions?
5. University of Leicester archaeologist uncovers evidence of ancient chemical warfare
6. New study provides further evidence that apple juice can delay onset of Alzheimers disease
7. New lab evidence suggests preventive effect of herbal supplement in prostate cancer
8. DNA evidence is in, newly discovered species of fish dubbed H. psychedelica
9. Polar research reveals new evidence of global environmental change
10. Evidence of earliest known domestic horses found in Kazakhstan
11. Researchers find the earliest evidence of domesticated maize
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/30/2014)... published new research from Bjorn Brembs, professor of neurogenetics ... with a proof-of-concept figure allowing readers and reviewers to ... This represents an important leap forward for scientific publishing, ... quality of a scholarly output. , Figure 3 in ... and their code to F1000Research , and the ...
(Date:7/30/2014)... therapies for spinal cord injury (SCI), traumatic brain injury ... great deal has been learned over the past 30 ... factors that regulate axon growth, but this large body ... therapeutics. Prof. Lemmon and his team from University of ... root causes, but a consensus is emerging that one ...
(Date:7/30/2014)... a paper published online today in the journal ... researchers Evan Kodra and Auroop Ganguly found that while ... variability in temperature extremes. For instance, while each year,s ... averages will also tend to fall within a wider ... are currently being observed. This means that even as ...
Breaking Biology News(10 mins):F1000Research brings static research figures to life 2Big data confirms climate extremes are here to stay 2
... 11, 2013 Elsevier, a world-leading provider of scientific, ... launch of Journal of Forensic Radiology and Imaging ... the International Society of Forensic Radiology and Imaging (ISFRI). ... of forensic radiology and imaging, JOFRI aims ...
... Discovery , the flagship journal of the American Association ... American research centres, presents significant results in treating cancer ... This marks the first time that the therapeutic effect ... Barcelona, 11 February 2013. A study led by Dr ...
... By thinking of cells as programmable robots, researchers at Rice ... tiny blood vessels that feed the brain and help people ... Amina Qutub and her colleagues simulate patterns of microvasculature cell ... their lab. Eventually, they want to develop the ability to ...
Cached Biology News:Elsevier announces the launch of a new journal: Journal of Forensic Radiology and Imaging 2First-in-man study demonstrates the therapeutic effect of RNAi gene silencing in cancer treatment 2First-in-man study demonstrates the therapeutic effect of RNAi gene silencing in cancer treatment 3Rice University lab show how blood vessels regroup after stroke 2Rice University lab show how blood vessels regroup after stroke 3
(Date:7/30/2014)... 2014 With the accelerated aging ... health expenditure as well as the improved medical ... diagnostic reagent industry has been developing quickly, especially ... 2013, Chinese in vitro diagnostics market size reached ... in vitro diagnostic reagents. , Read complete ...
(Date:7/30/2014)... Vycom announces the addition of Thermax PVC to ... Mutual (FM) 4910 fire propagation and smoke generation criteria ... tools, fume hoods, furniture and cabinetry. These criteria reduce ... used in electronic chip manufacturing. , Flametec ... workability and superior aesthetics. It is available in a ...
(Date:7/30/2014)...  Dyadic International, Inc. ("Dyadic") (OTCQX: DYAI), is ... technologies are used to discover, develop, manufacture and ... bio-based chemical, biopharmaceutical and industrial enzyme industries, announced ... Vice President and Chief Financial Officer. Tom will ... technology operations for Dyadic and will succeed ...
(Date:7/30/2014)... July 30, 2014  AtheroNova Inc. (OTCBB: AHRO), ... development of compounds to safely regress atherosclerotic plaque ... that its partner, CardioNova, has accomplished first dosing ... with AtheroNova,s lead compound, AHRO-001.  This Phase 1b ... Phase 1 safety trial completed in February 2014, ...
Breaking Biology Technology:China Diagnostic Reagent Industry Report, 2013-2016 | Researchmoz 2China Diagnostic Reagent Industry Report, 2013-2016 | Researchmoz 3Vycom Announces Flametec® Thermax PVC (FM4910 Listed) For a Variety of Clean Room Applications with Excellent Workability and Aesthetics 2Thomas Dubinski joins Dyadic as Chief Financial Officer 2Thomas Dubinski joins Dyadic as Chief Financial Officer 3Thomas Dubinski joins Dyadic as Chief Financial Officer 4AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 2AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 3AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 4
... 9 Boston Scientific,Corporation (NYSE: BSX ) ... has revised its Rating Outlook on the Company, ... long-term credit rating of,BB+., Fitch said the ... is making toward stabilizing its drug-eluting stent and ...
... Pressure,BioSciences, Inc. (Nasdaq: PBIO ) ("PBI") ... (PNNL), the Harvard School of,Public Health (HSPH), the ... Drug Administration (FDA) presented data generated through the,use ... last week,s,(June 1-5) American Society for Mass Spectrometry,s ...
... Inc. (Nasdaq:,NUVA), a medical device company focused on developing ... today,that Kevin O,Boyle, Executive Vice President and Chief Financial ... Annual Growth Stock,Conference at the Four Season Hotel, Chicago, ... A live Web cast of the presentation will ...
Cached Biology Technology:Boston Scientific Welcomes Revised Outlook From Fitch Ratings 2Boston Scientific Welcomes Revised Outlook From Fitch Ratings 3Four Independent Research Groups Present Data Generated by Pressure Cycling Technology (PCT) at the ASMS Conference on Mass Spectrometry and Allied Topics in Denver, CO 2Four Independent Research Groups Present Data Generated by Pressure Cycling Technology (PCT) at the ASMS Conference on Mass Spectrometry and Allied Topics in Denver, CO 3Four Independent Research Groups Present Data Generated by Pressure Cycling Technology (PCT) at the ASMS Conference on Mass Spectrometry and Allied Topics in Denver, CO 4NuVasive to Present at William Blair 28th Annual Growth Stock Conference 2NuVasive to Present at William Blair 28th Annual Growth Stock Conference 3
MMP-20 Immunogen: Activated recombinant human MMP-2 Storage: -20 C, Avoid Freeze/Thaw Cycles...
Rabbit anti-T-box 6...
Anti-Rsk2/MAPKAP Kinase 1b, #0 SK2/MAPKAP K1 beta Smartpool&t 3T3 cell lysate Non-specific Control Pool , #D 1X Universal Buffer...
...
Biology Products: