Tag: "centuries" at biology news

Scientists pioneer biotech techniques to halt infestation of history, art treasures in tropics

...ls used for various art and other purposes in past centuries in order to devise more effective preservation strategies. UNU-BIOLAC used DNA sequence technology, for example, to identify insects and bacteria eroding three wood types, including one from a temperate climate, used by colonial-era artists in Venezu...

Study: Pigeons can sense the Earth's magnetic field; ability might allow them to return home

...ILL Homing pigeons have intrigued humans for many centuries through their seemingly uncanny ability to find their way home from thousands of miles away. But how they do that has remained a mystery. Now, through a series of careful behavioral experiments in the laboratory, scientists say they have shown unequ...

Hudson's Bay Company fur trapping policies set stage for modern environmental struggles

...he region struggled with similar issues nearly two centuries ago as they sought to exploit and preserve the area's natural resources. In a pilot study examining the historical record for the National Park Service, a University of Washington researcher has found that the Hudson's Bay Company, the dominant outs...

Ancient DNA helps solve the legend of giant eagles

... Scientists believe the eagle died out within two centuries of human settlement of New Zealand. McMaster University, named Canada's Research University of the Year by Research InfoSource, has world-renowned faculty and state-of-the-art research facilities. McMaster's culture of innovation fosters a commitment...

Researchers blend folk treatment, high tech for promising anti-cancer compound

... about 10 years ago. The wormwood extract was used centuries ago in China, but the treatment became lost over time. In the 1970s, it was rediscovered as part of an ancient manuscript containing medical remedies, including a recipe that used a wormwood extract. The medical community soon discovered that the ext...

World's largest rainforest drying experiment completes first phase

...die. The death of large trees trees that may take centuries to reach the top of the forest canopy and have trunks greater than 10 inches in diameter -- increased from about one percent per year before the rainfall exclusion began to nine percent in the fourth year of the experiment, when soil water was deplet...

African-American women less likely to undergo genetic testing than white women

...f clinical cancer genetics) hailed by Bacon over 4 centuries ago. The average African American woman underestimates her risk of breast cancer and African Americans are on the whole less aware of genetic testing technology as a means of assessing personal risk," the authors write. "The benefits gained from ris...

Vampires beware: Scripps scientists describe molecular basis of raw garlic's pungency

... of the Middle Ages, migrated to the United States centuries later, and today is a major U.S. crop. According to the Food and Agriculture Organization of the United Nations, the United States produced nearly 300,000 metric tons of garlic in 2004 -- much of that coming from the farmlands of California. ...

Habitat use by North Pacific right whales, Eubalaena japonica, in the Bering Sea and Gulf of Alaska

.... North Pacific right whale sightings through the centuries have been associated with a wide variety of oceanic features, and there is little in common in the bathymetry of these regions. These whales appear to have a greater pelagic distribution than that observed in the North Atlantic perhaps because of t...

Native lands issues to be highlighted at 8th World Wilderness Congress

...e during the Congress and that their knowledge and centuries old expertise as land stewards is recognized." A United States indigenous group, the Confederated Salish and Kootenai Tribes (CSKT) of the Flathead Indian Reservation in Montana, will co-convene the Council with the Deh Cho First Nation from Canada. ...

Highlights in the June 2005 issue of Frontiers in Ecology and the Environment

...l Analysis and Synthesis) shows that some areas -- centuries later -- may not return to their original state. With "Recovery of forest plant communities in post-agricultural landscapes, " Flinn and Velland describe how recovering forests from agricultural landscapes and fields show reduced species richness. Th...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

...ting professor at the University of Maryland: "For centuries pastoral people lived in such regions with minimal impact. This 'harmony' was a default result of smaller populations, low stocking rates, and large areas to forage on. The conversion of rangelands to croplands reduced the available pasture and the ...

New Scripps Oceanography project to study sediments and ecosystem restoration in Venice lagoon

...ut two meters deep, and that could take us several centuries back in time. Because the sediment is so old, you could expect metals and organic contaminants to be present," said Deheyn, whose experience includes using biological indicators to test for toxins and pollutants in San Diego Bay. As in San Diego's wa...

History of Earth Sciences Society joins AGI

...f the geological sciences during the 19th and 20th centuries is one of exploration, adventure and discovery. HESS celebrates this rich heritage and, until HESS' formation, historical figures and studies in geosciences lacked attention. HESS remedied this situation by creating its peer-reviewed journal, Earth ...

How to avoid severe climate change discussed at CO2 conference

... be spewed into the atmosphere over the next three centuries from human fossil-fuel burning. It will have serio...s of years to come," Caldeira cautions. "Although centuries seem like a long time, they aren't when you look at how long it takes organisms to adapt to new cond...

Hormone might cause dangerous pregnancy complication

...essure. Cardiac glycosides, used by physicians for centuries to treat congestive heart failure, have largely be...blood-pressure problems such as preeclampsia. "For centuries physicians have controlled cardiac function using compounds like digitalis from the foxglove plant, ...

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...carcasses of marine mammals as their ancestors did centuries ago. The researchers from Stanford University and ...way they did when the Europeans arrived here three centuries ago."...

'New' science gleans knowledge from ancient lands and societies

...ually disappears, only to reappear decades or even centuries later. Some cycles are limited to pulmonary expressions and in others the pathogens spread throughout the body and cause severe bone deformities. "To account for past cycles and to predict the form taken by future ones, we must bring studies of the ...

Dog genome sequence and analysis published in Nature

...ears ago, but selective breeding over the past few centuries has made modern dog breeds a testament to biological diversity. Obvious examples include the contrasting body sizes of 6-pound Chihuahuas and 120-pound Great Danes, the hyperactivity of Jack Russell terriers relative to mild-mannered basset hounds, a...

Amazon trees much older than assumed, raising questions on global climate impact of region

...an we think," Trumbore added, "because it may take centuries for these forests to grow back to their full size." Some of the older trees found in the study included economically valuable species. For example, three Brazil nut trees measured in the study ranged in age from 680 to 1,000 years....

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(Date:5/21/2013)... long time that some creatures evolve more quickly than ... But it may be that height plays a role, ... U. S. National Evolutionary Synthesis Center. , In ... journal Nature Communications , Lanfear and colleagues report ... a database of global patterns in plant height for ...
(Date:5/21/2013)... increasingly being considered in the management of natural ... that can help them recognize and respond to ... their lives. , Place-Based Conservation: Perspectives from ... the Pacific Northwest Research Station,s Linda Kruger, can ... The book is published by Springer Verlag and ...
(Date:5/21/2013)... stem cells in the blood often jump into ... cells that can fight off illness. But repeated ... potentially leading to the development of serious blood ... researchers led by biologists at the California Institute ... models, the molecule microRNA-146a (miR-146a) acts as a ...
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