Tag: "continental" at biology news

'Dead zone' area shrinking, Texas A&M prof says

...on features, such as eddies, that intrude onto the continental shelf. We think this could break down the hypoxia in the area as well." The NOAA (National Oceanic and Atmospheric Administration) study, conducted from Texas A&M's research ship R/V Gyre, stretched from an area near Southwest Pass, La., to the Calca...

Wolverine takes a road trip

... Inman. Wolverines were nearly eliminated from the continental U.S. by around 1920, though some recolonization has taken place in recent decades. However, little is known about these rare carnivores, and previous proposals to list them as a federally threatened species have been rejected due to a lack of data ...

NSF and AIBS sign cooperative agreement for NEON project office

...ned to answer scientific questions at regional and continental scales and to enable ecological forecasting. "Once built, NEON will transform ecological research," said Mary Clutter, NSF assistant director for biological sciences. "It will create new collaborative environments, bringing together ecologists, ...

AIBS tapped to coordinate design of ecological observatories

...ned to answer scientific questions at regional and continental scales and thus enable ecological forecasting. Just as the nation's network of meteorological stations allows scientists to predict changes in the weather, NEON will make it possible for scientists to predict changes in the nation's ecosystems and th...

What actually influences air pollution over the Indian Ocean?

...n maritime NOx sources are long-range transport of continental emissions, lightning and ships. The new data show ...general view of how emissions from the surrounding continental regions influence NOx pollution over the Indian Ocean. This work shows that feedbacks in atmospheric...

Unicellular organisms contribute more nitrogen to ocean that reported earlier

...regions of nutrient-poor oceans typically off the continental shelves from the equator north and south to about 40 degrees latitude about which little or nothing is known in regard to unicellular nitrogen-fixing organisms, Montoya noted. "We are still at a very early stage in understanding ocean science and ho...

Invaders that did no harm?

...he Pacific Ocean--connecting watersheds across the continental divide. Since then, fish from the Atlantic and Pacific sides of Panama have intermingled, but the mix has not resulted in extinction of fish in tributaries on either slope according to new research published in the Proceedings of the Royal Society o...

New hypoxic event found off Oregon coast

... of low oxygen water formed but was pushed off the continental shelf by shifting winds and caused little damage," said Francis Chan, an OSU research associate with PISCO. "Then two months ago, we saw the early signs of another hypoxic event, and we believe we're now in the process of another dead zone event." I...

Droughts like 1930s Dust Bowl may have been unexceptional in prehistoric times, new study suggests

...of the climate models predict increased aridity in continental interiors in the future," Clark said. "One could speculate that the droughts could be all that much worse when you realize that it's not only climate change from changing CO2 content in the atmosphere, but also this natural variability out there that...

A changing landscape may have dire implications for birds

...uman population has grown significantly across the continental United States since the 1970s, Lepczyk says the number of houses sprouting up in previously undeveloped areas is likely having a greater impact than the raw number of humans inhabiting the landscape. "Houses, we think, may represent a better indicato...

Colorado River Conference Aug. 26

...d seniors over age 65. The fee includes parking, a continental breakfast and lunch. "The Colorado and its trib...erence will open 7:30 a.m. with registration and a continental breakfast, followed by 8:30 a.m. welcoming remarks and an 8:40 a.m. keynote address by Patricia Domi...

NSF awards $10 million in grants to ocean sites for long-term ecological research

...subsurface California Undercurrent centered on the continental slope that carries water poleward from the tropics...nd a highly seasonal circulation over and near the continental shelf, which shifts from a windward-driven equatorward flow that brings coastal upwelling in spring ...

Melting ice cap gives urgency to new census of marine life project in Arctic Ocean

... knowledge of their diversity and abundance on the continental slope and in the deep basins, particularly of the western Arctic Ocean, is poor," the researchers say. The deep waters offer "great potential for species discovery ... Deep-sea areas worldwide have been shown to harbor more species than previously ...

New version of premier global climate model released

...e. The new version also captures such features as continental land temperatures and upper atmospheric temperatures far more accurately than the previous version. In a test, the model closely simulated changes in global temperatures over the last century. In addition to simulating temperatures over the...

Two billion vulnerable to floods by 2050; number expected to double or more in two generations

... Hemisphere will likely see more storms while some continental areas might have drier summers and more risk of drought. Sea levels could rise, fed in part by melt-water from glaciers and ice caps. Along with this, extreme high-water levels may occur with increasing frequency. Higher sea levels could inundate s...

Trapping carbon in soil key for protecting global food security, dealing with climate change

...e type of quantum jump in crop yield needed at the continental scale to ensure food security in Sub-Saharan Africa," said Lal, who is also a professor of natural resources. "Soil needs enough carbon in order to hold water and nutrients and to grow crops efficiently. "But completely removing crop residue for anim...

Continents played key role in collapse and regeneration of Earth's early greenhouse, geologists say

... how the early atmosphere, early climate and early continental evolution went hand in hand,'' said Donald R. Lowe... which weathered jutting mountains of newly formed continental crust. Carbonic acid dissociated to form hydrogen ions, which found their way into the structures of...

Two dinosaurs from Africa give clues to continents' split

...India finally split from each other as a result of continental drift. Before these discoveries, abelisaurids were virtually unknown on Africa, leading some to suggest that Africa had split off first from the southern landmass Gondwana, perhaps as early as 120 million years ago. The new fossils indicate that Afri...

$5.5 million awarded to tree-ring research and climate studies

...construct and produce better understanding of both continental and oceanic climate variations. Tree-Ring Reconstructions of Asian Monsoon Climate Dynamics is funded by The National Science Foundation and led by Drs. Edward R. Cook, Rosanne D. D'Arrigo, Brendan M. Buckley, and Gordon C. Jacoby, all of the Tree-R...

Guiding gas exploration: U-M research offers inexpensive tool

...the world, and a lot of these have been covered by continental ice sheets, so these may represent areas where freshwater has penetrated into basins and microbial gas has been generated." To explore that idea, McIntosh compiled water chemistry data from basins in Africa, Asia and North America. "I was able to see...

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