Rise of dinosaurs in Late Triassic more gradual than once thought
... precursors, on the other hand, come from a middle latitude site in Pangea. This could indicate a geographic variation in survival of dinosaur precursors, or merely reflect the paucity of fossil finds, he said. Ghost Ranch, near the town of Abiquiu, where artist O'Keefe lived, is known for its Triassic foss....... The evidence indicates that penguins reached low latitude regions more than 30 million years prior to our previous estimates. The new species are the first fossils to indicate a significant and diverse presence of penguins in equatorial areas during a period that predates one of the most important climat...Rising temperatures will lead to loss of trout habitat in the southern Appalachians
...hey then developed a model that uses elevation and latitude as surrogates for temperature, producing spatially explicit information about how much trout habitat will be left as temperatures rise over the next 100 years. "Estimates of how much temperature will increase in the Southern Appalachians varies acco...Evolution of Old World fruit flies on three continents mirrors climate change
...y of particular inversions was correlated with the latitude where a given insect was found. Inversions that were common in the north were uncommon in the south, and vice versa. The fruit flies were accidentally introduced to the Pacific Coast of Chile in the late 1970s and to the North American West Coast ...Light guides flight of migratory birds
... of the sun. Just as the sun location changes with latitude and the time of year, so does the alignment of the band of polarized light. Muheim and Phillips argue that migratory songbirds average the sunrise and sunset intersections of the polarization band with the horizon to find the north-south meridian ...Mapping system tells skin cells whether to become scalp, palm tissues, Stanford study finds
...otanically similar areas of the world that share a latitude and altitude but differ in longitude, both the palms and soles are on the outer layer of the skin far from the center of the body and are more like one another than like their biological neighbors. "Ideally, we can use this finding to develop a pos...Better beetle sought for salt cedar control
...research associate. Researchers first looked at latitude and longitude to find the beetlethey thought would...n seem to be most suited to our climate atthe same latitude and longitude." At the Meredith site, the Posidi beetles released in 2004 have made itthrough two...World fire maps now available online in near-real time
...In addition to maps, the time, date, longitude and latitude of the hot spots are provided. The database covers 1995 to present, but complete yearly coverage begins from 1997. The WFA data are based on results from the Along Track Scanning Radiometer (ATSR) on ESA's ERS-2 satellite, launched in 1995, and the ......tudy are located in cities that span 12 degrees of latitude or more than 2,000 miles: Alexandria, La.; Coal Valley, Ill.; Dallas; Des Moines, Iowa; Houston; Lufkin, Texas; Memphis, Tenn.; Monroe, La.; New Orleans; Oakland, Calif.; Peoria, Ill.; Sacramento, Calif.; Salina, Kan; St. Louis; Topeka, Kan.; Tyler, ...Sociality of sweat bees evolved simultaneously during climate change
...g species and even within species as a function of latitude and altitude such that species and populations at low latitudes and in warmer regions are often fully social, whereas they are solitary at higher latitudes and altitudes, which are colder." Warmer regions have longer growing seasons, he explained, w...Mass extinctions a threat from outer space or our own planet's detox?
...vince. Erupted about 250 million years ago at high latitude in the northern hemisphere, they are one of many known flood basalts provinces - vast outpourings of lava that covered large areas of the Earth's surface. A major debate is underway concerning the origin of these provinces including the Siberian Trap...California researcher to receive prestigious award in biodiversity informatics
...omputer program that makes it possible to assign a latitude and longitude to a biodiversity data record that was originally collected without such information. Being able to convert verbal descriptions to numerical spatial data is "is bringing large portions of biodiversity information 'to life'", according ...New evidence extends greenhouse gas record from ice cores by 50 percent, adding 210,000 years
...p; and the new work strengthens the idea that high latitude Southern Ocean processes are important for controlling glacial-interglacial variations in carbon dioxide, according to the Perspective author who says that retrieval and analysis of even older ice cores may provide more definitive answers....Displaced songbirds navigate in the high Arctic
...navigating over long distances can determine their latitude on the basis of geomagnetic and celestial information, but longitudinal position is much more difficult to determine. In the new work, researchers investigated whether birds can define their longitude after physical displacements in the high Arctic, ...Using satellite observations to investigate 'greening' trends across Canada and Alaska
...t that 'greening' has begun to decline in the high latitude forested areas of North America. The work, which ...lieve this is some of the first evidence that high latitude forests may be in decline following an initial growth spurt associated with warming. The reasons fo...Warming most evident at high latitudes, but greatest impact will be in tropics
...mpact of global warming has become obvious in high latitude regions, including Alaska, Siberia and the Arctic, where melting ice and softening tundra are causing profound changes. But, contrary to popular belief, the most serious impact in the next century likely will be in the tropics, says a group of resear...Plants discriminate between self and non self
...ssor of horticultural ecology on examining how the latitude of a plants origin affects the respiratory responses of plant roots and mycorrhizal fungi to soil temperatures....New window into ancient ozone holes
...UV-B at South Georgia is the direct result of high latitude springtime ozone destruction in the stratosphere caused by decades of releases of human-made chlorofluorocarbons (CFCs). The situation may have been the same a quarter billion years ago, except that the earlier ozone-destroying chemicals came from th...Lactose intolerance linked to ancestral environment
...that lactose intolerance decreases with increasing latitude and increases with rising temperature, and especially with the difficulty in maintaining dairy herds safely and economically. A major challenge in interpreting the data, Sherman noted, was to resolve the puzzle that about 13 lactose-tolerant populat...Tropical birds sensitive to environmental cues that can be impacted by global warming
...n demonstrated by other scientists in all northern latitude species that have been investigated. But no one ha...y 25 km apart. The two populations are at the same latitude but are on the east and west slopes of the Andes, which have very different climate patterns. "At th...