Bacterial Diversity Current Events | Bacterial Diversity News
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Grazer diversity counteracts plant diversity effects on ecosystem functioning in seagrass beds
Several influential experiments have shown that high plant diversity enhances ecosystem productivity, animal diversity, and invasion resistance. Yet theory predicts that plant and herbivore diversity, which often co vary in nature, should have countervailing effects on ecosystem properties. In the July issue of Ecology Letters, Duffy, Canuel, and... view more... (2003-07-02)
Mean Population Size Increases with Diversity
A long-standing debate in ecology has been the effect of diversity on the temporal stability of biological systems. Ecological theory predicts that the stability of populations should decline as community diversity increases, in part, because population size is assumed to decline with community richness. In the February issue of Ecology Letters,... view more... (2003-01-28)
Shifts in soil bacterial populations linked to wetland restoration success
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. view more (2008-11-13)
Researchers establish common seasonal pattern among bacterial communities in Arctic rivers
New research on bacterial communities throughout six large Arctic river ecosystems reveals predictable temporal patterns, suggesting that scientists could use these communities as markers for monitoring climate change in the polar regions. view more (2009-11-24)
What makes life go at the tropics?
What causes tropical life to thrive: temperature, or sunlight? The answer is not necessarily "both." According to a study published online this week in PNAS Early Edition, the explosion of species at the tropics has much more to do with warmth than with light. view more (2008-05-28)
Diversity in the deep blue seas
Nature magazine has published an article by Xabier Irigoien, a researcher at AZTI, the Basque Fisheries and Marine Technological Research Centre. The article provides data on the diversity of marine life at the bottom of the sea - particularly amongst algae. Species diversity Most research carried out on the diversity of species has been with land... view more... (2004-06-28)
New Collection Of Bacteria
In recent times, efforts in protecting plants from insect pests are aimed at reducing the use of chemical controls, i.e., pesticides, and employing biological methods. The latter, as distinct from the chemical ones, do not contaminate the environment and agricultural products, do not accumulate in soil and water, and do not poison warm-blooded... view more... (2003-03-07)
Actions speak louder than words for diversity
Line managers play a critical role in the successful management of employee diversity in an organisation, and staff perceptions of how positively their manager handles diversity impacts their job satisfaction and commitment to the company. view more (2005-01-07)
Catastrophic shift in species diversity and productivity of an ecosystem
Ecology and environmental management is largely predicated on the view that ecosystems respond to environmental changes in a smooth and straightforward way. However, in Ecology Letters, May, Schmitz reports on a long-term field experiment that may prompt a hard, critical look at this reigning view. In the experimental system, top predators... view more... (2004-05-04)
Hermaphroditic plants have genetic advantage in areas where extinctions are frequent
In one of the first studies to empirically compare the reproductive success of hermaphrodites and male and female populations, biologists from the University of Oxford make use of the rare and extreme sexual diversity displayed in a species of European weed to test the hypothesis that hermaphrodites have been selected in regions with frequent... view more... (2006-02-22)
The ecological equivalent of Ellis Island: from ancestry to biodiversity
For many ecologists, the start of the 21st century was bewildering due to a book by Steve Hubbell. Hubbell claimed that many patterns in nature could be explained by a simple theory stating that all species are equivalent in competition for resources. In a letter to Ecology Letters, Rampal Etienne and Han Olff from the University of Groningen in... view more... (2004-02-24)
New Keys to Keeping a Diverse Planet
Variation in plants and animals gives us a rich and robust assemblage of foods, medicines, industrial materials and recreation activities. But human activities are eliminating biological diversity at an unprecedented rate. view more (2007-09-27)
A fast diagnosis for bacterial meningitis
University of Sydney researchers at Westmead Millennium Institute develop an accurate and rapid method of diagnosing bacterial meningitis. view more (2005-11-17)
Why is long-term therapy required to cure tuberculosis?
Understanding why other bacteria become resistant to antibiotics could hold the key to understanding why TB takes so long to cure, say researchers in a policy paper in PLoS Medicine. view more (2007-03-20)
Clinical guidelines help identify which children at risk of bacterial meningitis
A set of guidelines have been developed that can help predict the risk of bacterial meningitis for children with cerebrospinal fluid pleocytosis (presence of greater number of white blood cells than normal). view more (2007-01-03)
Genital infection may be linked to miscarriage
The genital infection, bacterial vaginosis, may be linked to miscarriage during the second trimester of pregnancy (13-15 weeks), concludes a study in this week’s BMJ. view more (2002-12-04)
No evidence for immune system overload after triple jab MMR
There is no evidence that the triple MMR (measles, mumps, and rubella) vaccine causes immune system overload and makes children more vulnerable to serious bacterial infection, finds a study in Archives of Disease in Childhood. If anything, the jab seems to protect children, the study shows. Researchers from the Public Health Laboratory Service... view more... (2003-02-18)
Vaccine to cope with viral diversity in HIV
The ability of HIV-1 to develop high levels of genetic diversity and acquire mutations to escape immune pressures contributes to our difficulties in producing a vaccine. view more (2007-04-27)
Risk factors identified for hearing loss in children with bacterial meningitis
Researchers have identified several risk factors that are associated with the development of hearing loss in children with bacterial meningitis. view more (2006-09-19)
Database shows effects of acid rain on microorganisms in Adirondack Lakes
Prior to the federal Clean Air Act, unhindered industrial emissions were released into the air throughout the Midwestern and Eastern United States for decades. Many of those harmful chemicals came right back down to earth in the form of acid rain, a chemical concoction that includes nitric and sulfuric acid. view more (2008-06-24)
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