Climate change may threaten more than one million species with extinction
...hor Chris Thomas of the University of Leeds. Small fluctuations in climate can affect a species' ability to remain in its original habitat. Slight increases in temperature can force a species to move toward its preferred, usually cooler, climate range. If development and habitat destruction have already altered t...Solving the Ebola enigma: satellites will provide clues
...emporal study of the dynamics of vegetation state, fluctuations in water body levels and climate changes all of which we can obtain from satellites." Detailed meteorological data currently almost non-existent could be important because the periodicity of Ebola outbreaks points to a seasonal component: "This......etic field and can cause large and sometimes rapid fluctuations in the geomagnetic field which then can cause power outages, disrupt the GPS satellite system, cause communication problems, and a host of other hazards. Initially these solar explosions did not produce such effects because the direction of the magne...Articles on life in tropical island streams published in BioScience
...al island watersheds are often influenced by major fluctuations in precipitation and tend to be more "event driven" than temperate stream ecosystems. There is growing recognition of the importance of conserving the biological resources of watersheds as well as the "ecosystem services" such watersheds provide, inc...How many fish in the sea? Census of Marine Life launches first report
...tive impacts of human activities and environmental fluctuations after fishing became prevalent; Future of Marine Animal Populations (FMAP) synthesizes Census-generated information to develop mathematical ecosystem models to predict future changes in marine animal populations caused by environmental and human in...Long-term natural gas supplies should meet growing demand in coming decades, study finds
...rtainty in the natural gas market is based on wild fluctuations in gas prices during the past three years. For example, the price of gas jumped from about $3 per million British thermal units (Btu) in January 2000 to nearly $8 per million Btu a year later. By January 2002, the price had plunged to about $2, then ...Powerful new method helps reveal genetic basis of cancer
...s ROMA unprecedented ability to detect copy number fluctuations on a genome-wide scale....Tourism to Earth's most threatened areas surges by over 100 percent in last decade
...cal goods and services to increase, force currency fluctuations and cause social and cultural disruption. "Tourism has huge potential for good or evil. It is in everyone's interest, particularly the industry's, that the economic power of 21st century tourism is harnessed for the benefit of local people and wildli...Modern global warming more damaging than in the past
...ween global warming today and past natural climate fluctuations as they relate to species extinctions. Generally, each species requires specific habitat and climate conditions to survive. In the past when climate changed, populations of a species would die out on one edge of their habitat range and expand into n...Can female adult obesity be stopped at birth?
...and integrated neurohormonal system that minimizes fluctuations in energy balance. Neurohormones are formed by neurosecretory cells and liberated by nerve impulses (e.g., norepinephrine). Their contribution towards this energy balance includes hormonal secretion sometimes in proportion to the body fat mass and th...Controlling cell adhesion: Researchers report first evidence of 'catch bonds'
...nd PSGL-1 and shielded the instrument from thermal fluctuations that produce forces greater than those he was trying to measure. In several hundred measurements, Marshall applied forces of less than 10 piconewtons comparable to the force exerted by a beam of photons leaving a laser pointer. He measured bond li...Atomic force microscope powerful new tool for measurement of particle attraction
... for different environmental conditions such as pH fluctuations and changes in concentration, she explains. Cail is using an atomic force microscope (AFM) to measure the attraction between a silica glass collector surface and a 2-micron sphere of carboxylated polystyrene, which has the size, shape, and surface c...Scientists crack the black box of coastal ecosystems
...he long term, through the ups and downs of natural fluctuations - some reserves might be good one year, others next year, some during El Nio years." In order to restore ecosystems, managers will have to consider all scales, from larvae to the entire ecosystem. But the good news is, that the black box of these c......use "it provides a very powerful way of looking at fluctuations and variability in behavior of individual enzyme m...he behavior of molecules is variable and there are fluctuations in the way they work," he says. "With different molecules and even within individual molecules there...Science picksLeads, feeds and story seeds (December 2002)
...the middle to late 1970s. Long-term monitoring of fluctuations of glaciers provides an important indicator of changes in regional and global climates. Volcanoes capped by glaciers pose significant threats in the form of lahars and jokulhlaups (mudflows and glacier outburst floods). The book, published as USGS ...Large-scale climate change linked to simultaneous population fluctuations in arctic mammals
...ge-scale climate system can synchronize population fluctuations in multiple mammal species across a continent-scal...ect on the population dynamics of two herds, these fluctuations were more synchronized, even though the herds were on opposite sides of the subcontinent of Greenlan...AAAS at the BA: Whale food, winners and losers in Antarctica and solar insights
...re. In the icy waters surrounding Antarctica, even fluctuations in the abundance of tiny, shrimp-like crustaceans called krill, a staple food source for fish and sea mammals such as whales, may trigger major ecosystem impacts. Brierley's research on the distribution of krill under ice has shown how possible clima...New device detects fetal brain response to light: May help prevent brain damage
...rference Device, a method developed to detect tiny fluctuations in magnetic fields using a superconductor cooled by liquid helium. Previous studies have shown that maternal hypertension, diabetes, pregnancy with two or more babies at once, and many other conditions can lead to hypoxia (lack of oxygen) that can da...'Obesity sleuths' find chronic diseases linked to behavior contrary our DNA
...that have been programmed for the proper metabolic fluctuations necessary to maintain health. Physical inactivity interferes with the genome thus becoming an initiating factor in the molecular mechanisms of disease. This assessment of chronic disorders addressed a wide range of maladies that affect a considerab...New computer model promises detailed picture of worldwide climate
...d the climatic impacts of past volcanic eruptions, fluctuations in ocean salinity, changes in land vegetation, and the thickness of sea ice. The resulting model has far more data than the earlier version, allowing scientists to make more detailed climate projections. "A coordinated community activity on this sca...