Discovery Of Cell Sites May Shed Light On How Bodily Systems Interact
...tancemade by the immune system and associated with declines in growth-hormoneproduction in animals with bacterial infections. The findings included two surprises and may help scientists understand howthe immune system harnesses other physiological systems to regulate animalgrowth and disease. First, the rece...End Of World Population Growth Projected For 21st Century
...Union – are projected to experiencepopulation declines before 2050. For example, over the course of the coming decades, population in theEuropean part of the Former Soviet Union could decrease, according to themedian projection, due to below-replacement fertility, relatively high mortality(especially...Christmas Bird Count: Another Holiday Tradition
...irds, American crows, and American goldfinches and declines of bobwhites, loggerhead shrikes, field sparrows, and mockingbirds. Come Christmas morning, when you have finished setting up that new computer, you can view the results of thousands going out across the land to remote sites, regardless of t...Restoring Farm Land To Natural Wetlands Key To Stemming Flood
...tlands behind the levee districts ... led to steep declines inthe river's fish and waterfowl populations. The expanding number of leveedistricts on the Illinois River also led to increasing flood heights asthe river was constrained to a narrower channel." Today, Schneider sees signs indicating that the wake-...More To Drought Than Meets The Eye
...dred maple both suffered large and frequent growth declines during drought, butare considered moderately to highly drought tolerant. "It appears that there is an inconsistent pattern between leaf-levelphysiology and radial growth," says Abrams. "More study is needed to see if andhow drought tolerant ...Hormonal Changes At Puberty Can Mask High Cholesterol In Blood
...s in the special intervention group hadsignificant declines in low-density lipoprotein (LDL) cholesterol, the "bad"cholesterol that leads to blockages in the blood vessels. However, LDL alsodeclined in the usual care group, so that the overall difference between thegroups was not as great as expected, reports...Wake Forest University Study Takes Students In Flight With The Albatross
...on and how their populations can be protected from declines attributed to longline fishing fleets plying Pacific waters for tuna and other fish. Anyone can participate in the study by typing "subscribe albatross" in the body of an e-mail message to listserv@wfu.edu. Or they can click on "Join the Proj...Even Moderate Air Pollution Reaching Eastern Wilderness Decreases Mountain Hikers' Lung Function
...e Mountain National Forestin New Hampshire. These declines were more pronounced in hikers with a historyof asthma or wheezing. Their study results are published today in the February issue ofEnvironmental Health Perspectives, the monthly journal of the National Instituteof Environmental Health Scienc...Amphibian Mortality Due To UV Radiation
...believe habitat disturbances are toblame, although declines have occurred in relatively undisturbed areas. Now, field experiments in the Oregon Cascade Mountains have confirmedwhat many scientists had suspected -- ambient levels of ultraviolet-B (UV-B)radiation from the sun can cause high rates of mo...Major Wolf Die-Off Recorded On Isle Royale
...ince succumbed. He said it was one of the steepest declines recorded sincewolves first migrated to the island during the winter of 1947-48. "We had anticipated a modest increase in wolf numbers this year," saidBarnard. "Mother Nature is unpredictable." Barnard said this winter's survey showed ...Fruits And Vegetables Protect Lungs
...in nutritional toxicology. Lung function normally declines with age, and compromised lung function is a hallmark of chronic obstructive pulmonary disease (COPD), which includes chronic bronchitis, asthma and emphysema. COPD is the fifth leading cause of death in the United States, affecting 5 million people...New Insights Into The Enigma Of Lengthening Longevity
... largest populations studied, it even declines at older ages. The same seems to be true for old automobiles as well, which suggests that although living organisms are vastly more complex than manufactured products mortality deceleration could be a general property of com...Increasing Threat Of Extinction For Amphibians? Scientists To Seek Answers At NSF Workshop
...gone? The world's leadingresearchers on amphibian declines will debate that question, and seekexplanations fo..., Columbia and Australia. Studies suggestthat the declines may be caused by infections, perhaps promoted by environmentalstressors such as synthetic organic co...Scientists Say Latently Infected Cells May Stoke the Fire of HIV Replication
...ls, the amount of circulating virus declines rapidly after reaching peak levels soon after initial infection. Dr. Paul and his co-authors, Zvi Grossman, Ph.D., of Tel Aviv University in Israel, and Mark B. Feinberg, M.D., ...USGS Responds to Amphibian Declines With Program In Great Smokey Mountains National Park
...y is in response to the worldwide reports of sharp declines in the numbers of amphibians; researchers believe that by monitoring the status and trends of amphibians in the Great Smoky Mountains National Park they can help predict trends in amphibian populations elsewhere around the nation. To survey amphibi......of tropical Queensland rainforest. Similar sudden declines have occurred in protected mountainous rainforest areas in Central and South America. An international team of scientists has been collaborating to solve this problem. The Australians have been working with researchers in the UK and USA. They'v...USGS And Arizona Game And Fish Begin Partnership To Study Western Yellow-Billed Cuckoo
... death ofthese birds but also can cause population declines due to thinning ofeggshells and decreased availability of insects and other cuckoo prey killedby insecticides. "Cuckoos aren't very visible to people to begin with," said Sogge. "They aresecretive and live in dense-growth habitats. It is easier to ov...Fetal Growth Rate Affects Risk Of Heart Disease
...en, the risk of death from ischaemic heart disease declines as birth weight increases (the heavier the baby the less likely he is to die from heart disease in later life). They suggest that it is in fact the rate at which the fetus grows rather than the ultimate size of the baby at birth that is the importa...Alaska Scientists Say Salmon Declines Inevitable
...Alaska also have fallen short of expectations. The declines come as a shock to fishermen and policy makers, bu... long-term changes in the ocean suggest the salmon declines are in part the result of natural ocean cycles. "It was bound to happen," says Milo Adkison, an assi...Alaska Sea Grant To Convene Ecosystem Considerations In Fisheries Management Conference
...fish; and (2) Gulf of Alaska and Bering Sea, where declines of crabs and shrimps have givenrise to increasing ...d species warrant special consideration.Population declines often lead to after-the-fact adjustments to fishing regulations without a goodunderstanding of cause...