More species in the tropics because species have been there longer
... of most tropical species to tolerate the variable temperatures of temperate areas. According to John Wiens, the study has important conservation implications: "If the pattern we see in treefrogs holds true for most other groups, then the tropics may have more ancient lineages and more genetic diversity per sp...Insect population growth likely accelerated by warmer climate
...earch suggests insects' ability to adapt to warmer temperatures carries an unexpected consequence more insects. ...mple, those living in deserts easily tolerate high temperatures but are much less tolerant of cold temperatures than insects living in mountains. Now UW biology res...VIP's importance to temperature regulation may be pre-empted by substance P
...ves in the skin during exercise or exposure to hot temperatures -- is what mediates the increased blood flow to th...g heated water through the suit to raise core body temperatures to about 100 degrees Fahrenheit. The investigators then measured the changes in skin blood flow at t...Tiny 'housekeeper' crabs help prevent coral death in South Pacific
...f environmental changes. For example, higher water temperatures and increased ultraviolet radiation, which are associated with climate change, are sources of widespread coral bleaching. Changing land use patterns, caused by population increase on the coasts, are another threat because population growth increase...Metabolic disorder underlies Huntington's disease
...ith Huntington's disease suffer extremely low body temperatures that worsen as the disease progresses. "These mic..., La Spada said. As their condition worsened, body temperatures fell substantially, he added, sometimes below 30C. Like humans, the normal body temperature of mice ...USGS presents a world of science at GSA in Philadelphia
...allenging because hydrates are unstable at surface temperatures and pressures. Gas hydrates, coal-bed gas, hydrogen, geothermal, nuclear, oil and gas, energy mix, and climate will be discussed among energy and energy-policy experts in this USGS-hosted session. Leslie Ruppert and Brenda Pierce presiding, PCC 113...Northern bogs may have helped kick-start past global warming
...e Earth was still in a deep freeze. But as surface temperatures and atmospheric methane levels rose, northern bogs...,500 years, atmospheric methane levels doubled and temperatures in central Greenland -- where the ice core is located -- jumped 18 degrees Fahrenheit. Between ...Shrinking ponds signal warmer, dryer Alaska
...a study area in the Arctic Coastal Plain where the temperatures are much colder, the growing season much shorter, and the permafrost is continuous, and a more maritime site south of the Alaska Range. All ponds in the study regions in subarctic Alaska showed a reduction in area of between 4 and 31 percent, with m...Rising ocean temperatures, pollution have oysters in hot water
...October 11, 2006) -- Oysters exposed to high water temperatures and a common heavy metal are unable to obtain suff...al, reduces the oyster's tolerance of warmer water temperatures and makes it more vulnerable during the summer when water temperatures rise. Half of the oysters exp...Seals protect brain, conserve oxygen by turning off shivering response on icy dives
...ir bodies continued to cool. Their heart rates and temperatures dropped while they dove, but when they returned to...ep of not shivering, Folkow said. By allowing body temperatures to drop, they slow metabolism and reduce oxygen demand. In addition, since shivering itself requires...Global warming to be addressed at public forum
...ption." In the wake of Hurricane Katrina, record temperatures in 2005, and Al Gore's recent efforts, climate change is becoming more prominent in public awareness. The Choices and Challenges forum provides an occasion for public discussion of scientific, ethical, ecological, and policy issues surrounding this t...Study suggests earlier crop plantings could curb future yields
... pattern was simply a result of earlier springtime temperatures brought on by global warming. But on probing the l...y weak or little to no correlation with springtime temperatures over the majority of the Corn Belt and these [earlier] planting dates," Kucharik says. Rather, other...Rising temperatures will lead to loss of trout habitat in the southern Appalachians
...ern Appalachians could disappear due to the warmer temperatures predicted under two different global climate circu...nd brown trout --all require relatively low stream temperatures to survive. Average air temperature in the United States has increased by about 0.6 C (1o F) over th...NASA satellite data helps assess the health of Florida's coral reef
...ve accurate, up-to-date information on sea surface temperatures to identify areas vulnerable to bleaching. The data was also used to measure the cumulative heat buildup over several weeks, shown to be particularly important to the health of reefs. "MODIS imagery is beneficial because it provides more detail tha...Record ozone loss during 2006 over South Pole
... "Such significant ozone loss requires very low temperatures in the stratosphere combined with sunlight. This y...ar's extreme loss of ozone can be explained by the temperatures above Antarctica reaching the lowest recorded in the area since 1979," ESA Atmospheric Engineer Clau...New study explains why hotter is better for insects
... temperatures. "For thermodynamic reasons, cold temperatures present a challenging problem for ectothermic [cold-blooded] organisms because they slow biological processes, thus reducing rates of movement, feeding, and population growth," explains author M. R. Frazier. Many researchers believe that biochemica...Bacteria for better ice cream and artificial snow no longer depends on trek to poles
...his study promote the formation of ice crystals at temperatures close to melting, which is useful in the production of artificial snow. One species is also thought to be tolerant to cold and could therefore have advantages for making snow in artificial environments such as ski centres, and in waste-water purifica...Scientists use an 'ice lolly' to find polar bacteria in their own backyard
...his study promote the formation of ice crystals at temperatures close to melting, a property which is useful in the production of artificial snow. Pseudomonas borealis is one species which is not only ice-forming, it is also thought to be tolerant to cold and could therefore have advantages for snow-making in art...With record resolution and sensitivity, tool images how life organizes in a cell membrane
...ed in illustrations in the paper, melted at higher temperatures than short lipids, represented by green. The researchers melted the lipids together, then placed them on a surface to cool and separate into splotchy patterns. This is the system that Longo had developed for other purposes in earlier work. ''The tal...Groundbreaking study by Field Museum scientists explains mane variation in lions
...ments like Tsavo that have especially high minimum temperatures throughout the year, lions in their reproductive prime--from the approximate ages of five thru seven years old--usually possess only very marginally developed manes, while most of the more thoroughly maned lions in those same territories were already...