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Too much of a good thing? Excess nutrients or water limit biodiversity
03-25-2007 · EurekAlert!Too much of a good thing (nutrients or water) actually decreases the diversity of species in an ecosystem while it increases the productivity of a few species, according to a grassland experiment conducted by University of Minnesota researchers.
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Keywords: good, thing, excess, nutrients, water, limit, biodiversity, nutrient
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Similar news on "Too much of a good thing? Excess nutrients or water limit biodiversity":
- Too much water, fertilizer bad for plant diversity
03-26-2007 · EurekAlert!
Too much of multiple good things -- water or nutrients, for example -- may decrease the diversity of plant life in an ecosystem while increasing the productivity of a few species, a UC Irvine scientist has discovered.
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- Soil nutrients shape tropical forests, large-scale study indicates
01-11-2007 · EurekAlert!
Tropical forests are among the most diverse plant communities on earth, and scientists have labored for decades to identify the ecological and evolutionary processes that created and maintain them. A key question is whether all tree species are equivalent in their use of resources -- water, light and nutrients -- or whether each species has its own niche.A large-scale study by researchers at the University of Illinois at Urbana-Champaign and eight other institutions sheds some light on the issue.
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- JCI table of contents: April 2, 2007
04-02-2007 · EurekAlert!
This release contains summaries, links to PDFs, and contact information for the following newsworthy papers to be published April 2, 2007, in the JCI, including: Is there such a thing as too much sugar?; Heart grafts avoid rejection; New gene defect causes heavy bones; Pancreatic cells show variable plasticity; We’ve got drinking water on our minds; and HIF-2 boosts red blood cell numbers.
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- Nutrient pollution drives frog deformities by ramping up infections, says CU-Boulder study
09-24-2007 · EurekAlert!
High levels of nutrients used in farming and ranching activities fuel parasite infections that have caused highly publicized frog deformities in ponds and lakes across North America, according to a new study led by the University of Colorado at Boulder.
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- Fish extinctions alter critical nutrients in water, study shows
03-02-2007 · EurekAlert!
A Cornell study using computer simulations has teased out how extinctions of freshwater fish can affect the availability of certain nutrients that other species rely on.
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- Experiment suggests limitations to carbon dioxide 'tree banking'
08-07-2007 · EurekAlert!
While 10 years of bathing North Carolina pine tree stands with extra carbon dioxide did allow the trees to grow more tissue, only those pines receiving the most water and nutrients were able to store significant amounts of carbon that could offset the effects of global warming, scientists told a national meeting of the Ecological Society of America.
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- It's not just a kid thing: Fluoridated tap water benefits older adults even more
12-04-2007 · EurekAlert!
Gerardo Maupomй, of the Indiana University School of Dentistry, Indiana University-Purdue University Indianapolis, and colleagues report in a study published in the fall issue of the Journal of Public Health Dentistry that older adults benefit even more significantly from fluoridation than children.
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- Why do so many species live in tropical forests and coral reefs?
10-31-2007 · EurekAlert!
The latest development in a major debate over a controversial hypothesis of biodiversity and species abundance will be published in the Nov. 1, 2007, issue of Nature. The authors report good agreement between the species richness of two of the most vulnerable ecosystems -- tropical forests and coral reefs -- and a simple mathematical model building on the "neutral theory of biodiversity." The research could aid the effort to protect terrestrial biodiversity from climate change and urban development.
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- Light humor in the workplace is a good thing, says MU business professor
11-01-2007 · EurekAlert!
It is commonly believed that kidding around at work isn't a good thing. Well, it is, says a University of Missouri-Columbia researcher, who has examined how workplace humor affects the working environment.
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- Clean or boiled tap water is as good as saline at cleaning acute wounds
01-22-2008 · EurekAlert!
Using drinkable tap water to clean wounds does not increase infection rates, according to the findings of a Cochrane Review. There is, however, no evidence that it reduces infection rates or increases healing rate over leaving the wound alone.
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