Amphibian Mortality Due To UV Radiation
...ame, 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 mortality and deformity in somespecies of ...Ameriflux Network Will Track CO2 Transfer In Forests
...iFlux tower willbegin this May in the middle of an undisturbed stand of hardwoods---mostlyaspen, red maple and red oak with some white pine. Sensing instruments will beinstalled at various levels on the tower from above the forest canopy to groundlevel. Beginning in July 1998, scientists at the Biological Stat...Fatal Frog Fungus Found In The United States
...na in Tucson.He collected the frog in a relatively undisturbed spot near Cienega Creek. Pathologist Donald K. Nichols of the National Zoological Park in Washington,D.C. diagnosed chytrid infection. He found the same disease in another speciesRosen collected, a fatally ill Chiricahua leopard frog from an outdoor...Study Demonstrates High Conservation Potential Of Logged Rainforest
...ise not worth the loggers' time. That proximity of undisturbed anddisturbed areas let the researchers assess the overall impacts caused bylogging. Indonesian government rules, which Cannon noted are not rigorouslyenforced, restrict logging activities to trees at least 50 centimeters (about1.6 feet) in di...Fully Endoscopic Brain Surgery At Cedars-Sinai Medical Center
...ough a nostril, there is no scarring, the brain is undisturbed and both thetime required for the actual surgical procedure, as well as the overall recoverytime are dramatically reduced. Of the approximately 12 Skull Base Institute patients who have undergone thistype of delicate brain surgery in the past three ...Native Gray Ants Play Positive Role In Valley Peach Orchards
...the number ofsouthern fire ants, which prefer dry, undisturbed soils. "Because the native gray ant and southern fire ant compete for foragingterritory, any cultural practice that decreases one species may allow the otherspecies to increase in numbers," Daane said. The only cultural practice that ...Animals' Behavior Can Hasten Their Extinction
... not be in its best interests because whatworks in undisturbed habitats may no longer apply in those altered by people.But most plans for conserving endangered species fail to account for behavior,says Michael Reed of Tufts University in Medford, Massachusetts. Examples of behavior that contributes to extinctio...Clemson's Baruch Forest Science Institute tracks forests' recovery from hurricane damage
... the Andrew W. Mellon Foundation. They will remain undisturbed by any future developments and are being used todocument what happens to forests in the aftermath of major hurricane damage. Gresham is based at the Clemson's Belle W. Baruch Institute of CoastalEcology and Forest Science in Georgetown, a publ...Unveiling all of the consequences: Introduced plants may be causing hidden trouble
...southwestern Saskatchewan. The park is a mosaic of undisturbed prairie and 50-year-old fields of the introduced wheatgrass. After diligently cleaning, weighing and analyzing their samples, the scientists found that the soil beneath crested wheatgrass contained significantly less nutrients and organic matter tha...Link between climate change, amphibian declines explored
...es is that many amphibians are dying in relatively undisturbed areas where man-made environmental degradation is not obvious." The researchers hope to determine if the same chytrid fungus is travelling around the world, if specific local environmental factors cause local populations of the fungus to become vir...Tucson researcher receives national award
...les, increasing the kissing bug's chance of dining undisturbed on a more plentiful meal. Hemogloblin shares nitrophorin's iron center, but not its ability to release nitric oxide. Walker probed the natural resonance of nuclei within the molecule and found out why: the electron structure that surrounds nitrophori...Mountains of variables: The effect of landscape features on atmospheric deposition
...s, some areas of these mountains have been largely undisturbed for the past 100 years. In addition, the Catskill region is of particular interest because the area's watersheds provide 90% of New York City's water supply. Soil samples were taken from Hunter Mountain, which is the second highest peak in the Cats...Amazon rainforest field research facility opens for ecological, global change studies
...similar instruments will monitor the forest in its undisturbed state and after it is logged next year so scientists can study how the forest recovers. A third site outside the forest will monitor carbon and water exchanges in a pasture. With data from all these sites, scientists will make the first three-way com...Study finds rare juvenile turtles
...story traits and ecology of this species under the undisturbed habitat conditions provided by the Kellogg Biologi...fe history traits and ecology of the species under undisturbed conditions. Using the already-marked population in privately-owned Sherriff's Marsh in Kalamazoo Co...Singing silently during sleep helps birds learn songs
...could hear a recording of its own song, and during undisturbed sleep. While the birds are awake and singing the...he process of learning," said Margoliash. During undisturbed sleep, the researchers discovered, the neurons spontaneously fired the same complex song production ...Researchers study oldest oak east of the Mississippi
...ate and drought conditions affect tree growth. The undisturbed old-growth forest provides a clear picture of what a forest would look like without human intervention. "Any one of us has maybe a 10- or 20- or 30-year frame of reference, but that may represent less than 10 percent of a life span of a tree," said...New lab-made stem cells may be key to transplants
... lines, such as nerve cells, and allowed to divide undisturbed for many generations. The researchers quickly recognized EBD cells ability to grow readily, but hadnt a clear idea what theyd produced. To their surprise, tests to identify molecules characteristic of specific cell types revealed markers from at le...Scientists, ships, aircraft to profile Asian pollution and dust
... and fine particles intheir natural distributions, undisturbed by instrument turbulence. Using a highly precise chemical sensor aboard the C-130, NCAR's HansFriedli and Lawrence Radke will try to untangle some of the mysteriesof mercury, an elusive and toxic metal that damages or destroys nervetissue and kills f...Researchers prove past cooling trend caused by move from forests to agriculture
...rming is starting from some natural climate state, undisturbed by human activities."...