Hofmeyr skull supports the 'Out of Africa' theory
...ntiate recent human populations according to their geographic distributions and genetic relationships. She compared the Hofmeyr skull with contemporaneous Upper Paleolithic skulls from Europe and with the skulls of living humans from Eurasia and sub-Saharan Africa, including the Khoe-San (Bushmen). Because the ...Dangerous wheat disease jumps Red Sea
...resistant wheat varieties. A year and a half ago geographic information systems specialists working at CIMMYT plotted the probable trajectory of the fungus, whose spores can travel large distances on the wind. The wind models predicted that if the fungus crossed from eastern Africa to the Arabian Peninsula it...Nitrogen study may improve ecological predictions
...o see how similar these processes were across wide geographic and climatic scales," Harmon said. "The basic trajectory is much the same regardless of many variables. A fairly simple model can accurately predict it." The overall decomposition process, he said, does speed up in warmer or wetter conditions, which...Whitefly spreads emerging plant viruses
...d to their native habitats or contained by natural geographic boundaries. "The increased importance of new and emerging plant viral pathogens is directly related to the adaptive capacity of B. tabaci and its ability to exploit agricultural systems," Brown said. B. tabaci has proven difficult to control partly b...UTSA researchers examine effects of global warming on Antarctic
...phical Names honored him by naming Ackley Point, a geographic feature in Antarctica, after him. "In the Antarctic, we are seeing some regional increases in the sea ice along with regional decreases," said Ackley. "If you look at the totality of it, it appears as if it hasn't changed very much over the last 3...Study profiles rate of autism in Wisconsin
...ccurate counts of children with autism in multiple geographic locations, comparing autism rates among different ...panics. The researchers also noted an apparent geographic difference, with autism rates more than twice as high in Dane County as in Milwaukee County. "We d...Sequencing human history -- The genetics and commerce of personal ancestry
...ill describe the relationship between genetics and geographic origins, and how understanding human genetic variation is accelerating biomedical research. Spencer Wells, director of the Genographic Project at National Geographic, will explain how his team is mapping ancient human migrations based on the DNA code...AGU Journal highlights -- February 23, 2007
...as a function of timescale, bottom topography, and geographic location. Because the correct interpretation of s...nsport models to analyze possible scenarios of the geographic distribution of volcanic debris as it would evolve during a medium-scale eruption. In particular, th...GenePOPS -- Sequencing Human History: The Genetics and Commerce of Personal Ancestry
...ill describe the relationship between genetics and geographic origins, and how understanding human genetic variation is accelerating biomedical research. Spencer Wells, director of the Genographic Project at National Geographic, will explain how his team is mapping ancient human migrations based on the DNA code...Carnegie Mellon researchers urge regulators to rethink strategies for soot emission
...ss leads to a spreading of pollution over a larger geographic region. "Were seeing that urban pollution doesnt stay contained in the cities, but impacts rural and other downwind areas, creating even more complicated issues for regulators," Robinson said. Fine particles such as smoke or dust form droplets in c...Alien predators are more dangerous than native predators
... fauna have long been protected by the continent's geographic isolation. According to the World Conservation Union, Australia has nine of the world's 14 worst invasive mammals (domestic cat, goat, grey squirrel, mouse, pig, rabbit, red deer, red fox, ship rat). Scientists believe that more frequent contact be...No need to thank dinosaur-killing asteroid for mammalian success
...the November 2, 2006 issue of Nature that examined geographic distributions of nearly 20,000 species of vertebrates, the researchers hope to move away from the prevailing piecemeal conservation strategy to one that maximizes the benefit to the greatest number of species and those most at risk. "The overarchi......o make small dogs "was readily spread over a large geographic area by trade and human migration." Or, as Lark puts it: "A local sailor came in with a small dog and everyone said, Ooh, I want a dog like that! Can I use him to father my next dog?" Meanwhile, other people bred dogs to be large for use as gua...DNA sequence of Rhesus macaque has evolutionary, medical implications
...f these animals, who live healthily across a broad geographic area. Finally, the researchers noted, the variations in genetic material rearrangements, duplications, expansions in genes and measurements of the impact of natural selection reveal "the rich and heterogeneous genomic changes that have occurred dur...Map predicting spread of avian flu
...l diseases between farms. These risk maps identify geographic areas in which a given intervention strategy fails to control the spread of the disease between farms. "The risk map concept is an instrument suitable for analyses of epidemic control options both during crisis and in peacetime" says Boender. ...Gene study shows three distinct groups of chimpanzees
... separation is genuine, a long-term consequence of geographic isolation." The original boundaries between groups may have been the emergence and growth of rivers, such as the Congo River, which is thought to be about 1.5 million years old. "Chimps don't swim," Becquet said. "For them, water provides a very ef...A thesis of the UGR analyses more than 20-million-year-old vegetation to study climatic evolution
...s analysed samples of the sedimentary bowls of the geographic section from the south of Spain to Turkey to check that 14 million years ago there were glaciations in the south pole that changed the ruling subtropical climate into warm and transformed the characteristic vegetation of this area. A result that can ...Researchers create interactive map with Google technology to track avian flu spread
...a study co-author. The team projected genetic and geographic information onto an interactive globe using Google...d Hill. "This allows us to test hypotheses on the geographic distribution of strains that contain what laboratory studies have suggested are the key genotypes th...Seeing the trees for the forest: WHRC scientists creating national biomass and carbon dataset
...achians). Mapping zone selection was based on (1) geographic distribution, (2) data availability, (3) data quality, (4) community interest, and (5) research potential. Wayne Walker, a post-doctoral fellow at the Center who is also working on the project adds, "It has been very exciting for us to make use ...