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Tag: "northern" at biology news

Researchers trace evolution to relatively simple genetic changes

...and in coastal fresh water habitats all around the northern hemisphere. Sticklebacks are enormously varied, s...mpare the molecular basis of this trait across the northern hemisphere," said Kingsley. "It doesn't matter where we look, on the Pacific coast, the East coast, ...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...and in coastal fresh water habitats all around the northern hemisphere. Sticklebacks are enormously varied, s...mpare the molecular basis of this trait across the northern hemisphere," said Kingsley. "It doesn't matter where we look, on the Pacific coast, the East coast, ...

South America's vast pantanal wetland may become next everglades, UNU experts warn

...ver, could have profound ecological impacts in the northern Pantanal. "Inter-linkages approach" needed to manage the Pantanal The complex interconnections and inter-linkages at the ecological level ?as for example, between climate change and biodiversity ?underline the need to develop inter-linkages at the ...

Scientists find fossil proof of Egypt's ancient climate

...tudying snail fossils to understand the climate of northern Africa 130,000 years ago. While that might sound a bit like relying on wooly bear caterpillars to predict the severity of winter, the snails actually reveal clues about the climate and environment of western Egypt, lo those many years ago. They also...

International HapMap consortium expands mapping effort

...dan, Nigeria and Utah residents with ancestry from northern and western Europe. No medical or personal identifying information was obtained from the 270 donors. However, the samples are identified by the population from which they were collected. Although any two people are 99.9 percent identical at the gene...

Dead zone area in Gulf could be increasing, researchers say

...ty and NASA recently surveyed the dead zone in the northern Gulf of Mexico and their findings show that the ar... area is of immense importance to people along the northern Gulf of Mexico," he adds. "We plan to return there in May, July, August and October to collect more ...

No relief for Pacific Northwest drought

...six-state region that includes Oregon, Washington, northern California, Idaho, Montana and Wyoming. "We proje...ely dry in many parts of the Pacific Northwest and northern Rocky Mountain states, and the fire risk is going to be significantly higher than normal. There is n...

Small species back-up giant marsupial climate change extinction claim

... between 1.8 million and 10,000 years ago. In the northern hemisphere species such as the woolly mammoth and sabretooth tiger dominated the landscape, while in Australia - which evolved for 40 million years in isolation - giant marsupials ruled. Current theories suggest that between 50,000 and 20,000 years ...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...loudless July afternoon in Etosha National Park in northern Namibia, and ecologist Caitlin O'Connell-Rodwell is scanning the horizon for elephants. "It's so fantastic here," she says. "We're constantly seeing elephants, rhinos, zebras, ostriches--it's the Garden of Eden." A research associate in the Stanford...

Are rice and wheat behind China's population boom?

The rapid growth of the earliest cities in northern China starting as far back as 2400 to 2000 BC is t...t that was the most important food associated with northern China. However, recent archeological research conducted on the Liangchengzhen site by investigators ...

Grizzlies set to invade high Arctic?

...dy known to prey on polar bear cubs, have on these northern bears? For now, however, the greatest issue might be for the geologists themselves, says Dr. Jonathan Doupé, a postdoctoral researcher working with Dr. England. "We have bear safety courses when we go up there, and people would normally say you don...

Africa to take it on chin again with climate change

...tudies that also connected the Sahelian drought of northern Africa to the Indian Ocean. Instead, the new results point to a late 20th-century cooling of the North Atlantic Ocean as having been key to Sahelian drought. A subsequent switch to North Atlantic warming, partly consistent with the impact of greenhou...

Undesirable expatriates: Preventing the spread of invasive animals

....S. and Canada. Canadian goose, gray squirrel, and northern cottontails already populate the European countryside. In the absence of precautions, Jeschke speculates that North American animal introductions may become more common. The bottom line-- vertebrate animals have a high rate of invasion success. Once...

Six million Africans face famine because of locusts, drought

...ng planting season." In some areas of Mauritania, northern Senegal, Mali, Burkina Faso, Niger and Chad, the prices of food, especially millet, have as much as doubled, OCHA said, while the prices for undernourished cattle and other livestock have plummeted. Children younger than 5 in Mauritania, Mali and Ni...

Primates on the brink

...luding the Sumatran orangutan of Indonesia and the northern muriqui of Brazil, are "three-time losers" for having appeared on all three lists. Seven are new additions to the 2004-2006 list, and three appeared once before. Madagascar and Vietnam each have four primates on the new list, while Brazil and Indone...

Asymptomatic HIV babies could use earlier treatment

...olleagues collected data from hospitals throughout northern California over a 17- year period. Statistical calculations indicate that their sample of 205 children represent nearly every HIV-infected child born in the area during that time—an unbiased sample that allowed them to analyze all infected babies, no...

Alien woodwasp, threat to US pine trees, found in N.Y.

... The woodwasp, which is native to Europe, Asia and northern Africa, where it rarely is a pest, kills pines, and sometimes several other types of conifers, by introducing a toxic mucus and spores of a toxic fungus when the female lays her eggs through the bark and into the sapwood of the tree. "If S. noctilio...

Climatologists discover deep-sea secret

Climate changes in the northern and southern hemispheres are linked by a phenomeno... history when the temperature has increased in the northern hemisphere, the southern hemisphere has entered a cooling period, which creates a decrease in the am...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...nsus of Marine Life explorers to the planet's most northern reaches has revealed a surprising density and dive...nue receding, hypothetical new disturbances on the northern ocean such as energy exploitation, fishing and shipping. The research compares species distribution...

UN pours polio vaccine into Yemen amid outbreak

...n on the exporting "reservoirs of transmission" -- northern Nigeria, northern India and Pakistan, with India reporting only 14 cases so far this year, all of them polio Type 1, a...

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