Tag: "decline" at biology news
New owl species discovered in Brazil
...t severely fragmented and in a state of continuing decline
due to unchecked human activities in the region. The area in which the pygmy-owl lives harbors half of the 850 bird species that exist in the Atlantic Forest, with 17 globally threatened species and one extinct in the wild, the Mitu mitu. The region ...
Worlds most endangered alligator released in China
...s Anhui Province, with their numbers continuing to decline
as much as six percent annually. The three released animals came from an alligator breeding center. Scientists equipped each individual with a radio transmitter to track its movements. The team, which included members of WCS, Anhui Forest Departme...
Indonesia pledges to double marine protected areas to 10-million hectares
...ns End conference was convened to help reverse the decline
in health of the worlds ocean. Leaders from Conservation International, Environmental Defense, International Seakeepers Society, IUCN-World Conservation Union, Natural Resource Defense Council, Ocean Futures Society, Seaweb, The Nature Conservancy, T...
World's leading scientists issue unprecedented plan for protecting ocean and marine life
...comprehensive and achievable agenda to reverse the decline
in health of the world's ocean. The five-day Defyi...'s End conference was convened to help reverse the decline
in health of the world's ocean. Leaders from Conservation International, Environmental Defense, Inte...
Why have sex? The answer is not as simple as we thought
...he stress (the second mutation) leads to a defined decline
in growth rate, this observation suggests that the...lt in another way. By drawing a graph showing the decline
in growth rate under normal and adverse conditions, as the number of mutations in the bacteria incre...
Novel flu vaccine shows promise in mice
...Also, the effectiveness of the vaccine is known to decline
in the elderly, a population for whom flu infections can be particularly dangerous. A new prototype vaccine developed by researchers at The Wistar Institute, however, might be able to protect recipients not only against this year's strains of the vir...
All species are not created equal when assessing the impacts of species loss on ecosystems
...common or dominant species were always present, no decline
in aboveground plant growth of a native Kansas gra... to ecosystem change, even in the face of a 3-fold decline
in species. The loss of uncommon species did negatively affect the remaining rare species, however, ...
Scientists predict swift end to vCJD epidemic
...ts suggest that the vCJD epidemic will continue to decline
with a best estimate of only 40 future cases". These are expected within the next five years. The group have also come up with a meaningful estimate for the incubation time of vCJD -12.6 years. This is a similar to the incubation period of Kuru, th...
Diabetes in the elderly linked to fewer cellular 'power plants'
...es -- because "power plants" in their muscle cells decline
or fail with age, according to Howard Hughes Medical Institute researchers at Yale University School of Medicine. In studies of young and elderly people, the researchers found that older people had lower levels of metabolic activity in their mitochon...
Nature cover story - Only 10% of all large fish are left in global ocean
...m standardized research trawl surveys to track the decline
in the populations of large fishes. Most surprisi...untapped reservoirs of large fish. To measure the decline
in open ocean ecosystems, the researchers gained access to Japanese longlining data. Pelagic longlin...
Good News: Cognitive decline after bypass surgery mostly temporary and reversible
... Surgery. "Our study demonstrates that cognitive decline
immediately after coronary artery bypass surgery is transient and reversible," says Ola Selnes, Ph.D., associate professor of neurology at Johns Hopkins and lead author of the study. The researchers employed a number of neuropsychological tests to...
Study on worlds oldest monkeys may explain age-related mental decline, Scientists say
...th age. While the eye itself does degenerate, this decline
also involves the vision-related section of the cerebral cortex, which is responsible for many higher-order brain functions. What the researchers discovered about the visual system likely applies to age-related declines in other parts of the cerebra...
Review examines economic growth and wildlife
...er. "This growth has been accompanied by a general decline
in habitats and populations of wild creatures, so this review poses the question: is there an alternative to this fundamental and inevitable conflict?" The 22-page technical review, published in March 2003, was written by Trauger, Brian Czech, cons...
Science highlights of AAN Annual Meeting in Honolulu March 29 April 5
...ed with a slight decrease in the rate of cognitive decline
among the elderly, although not in those who had already developed dementia. These results suggest that statins may favorably influence the course of Alzheimers disease early on in its progression. Stroke Statins also figured favorably in a study ...
Physical activity in the elderly ruled in part by genetics
...findings suggest the commonly stated "age-related" decline
in physical activity level with aging is due, in part, to genetic influences on physiological alterations. Future research will attempt to isolate the specific genes participating in these observations and quantify the influence of genetics througho...
In some patients with chronic fatigue syndrome, left ventricular function may be involved
...r in patients with more severe symptoms. Using a decline
in EF as a criterion, 13 CFS patients (81 percent) and 0 control subjects had positive tests. There were no group differences in levels of exertion, as indicated by similar cumulative work output, maximal heart rate, and increases in lactate level...
Wild ape population undergoing 'catastrophic' decline
..., given the current trend, the ape population will decline
by another 80 percent within 30 years, but probably much sooner if the loss continues to accelerate. That rate of decline, which spans just one or two generations of the animals, qualifies apes for "critically endangered" status under the World Conse...
Catastrophic decline of Africa's apes, Nature says
...latest issue of the journal Nature that a dramatic decline
of gorillas and chimpanzees is taking place in wes...ers had taken place between 1983 and 2000. Such a decline
justifies that both species should be reclassified from "endangered" to "critically endangered" acco...
As harmful as osteoporosis but less well known - New research better explains sarcopenia
...ost important biological mechanisms underlying the decline
in physical function that is often observed over the aging process. The plasma concentration of interleukin-6 (IL-6), a cytokine that plays a central role in inflammation, tends to increase with age. High serum levels of IL-6 are a predictive factor...
Europes population has developed new tendency to shrink, Science study reports
...if women begin having more children, a tendency to decline
can persist for decades, simply because there are ...will be a built-in tendency for population size to decline
by 55 million, to 144 million by 2100. Lutz and his co-authors suggested that governments concerned ...
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