Tag: "northern" at biology news
Saudi Arabia's KAUST names WHOI first research partner
...ef ecosystems along the Saudi Arabia coast in the northern
central Red Sea. The project will assess a range of threats to coral reef health and identify regional environmental stress factors that make the reefs susceptible to disease, bleaching and death. The goal of the proposed WHOI-KAUST three-year f...
New study warns limited carbon market puts 20 percent of tropical forest at risk
... comprise much of the Guayana Shield region of the northern
Amazon that is the largest intact tract of tropical forest on Earth. In addition, portions of other large non-HFLD countries are in the same situation. For example, although Brazil has four other major ecosystems, the Brazilian Amazon faces a similar...
Which came first, the moth or the cactus?
...the parched Sonoran desert of southern Arizona and northern
Mexico, the senita moth depends on a single plant species -- the senita cactus -- both for its food and for a place to lay eggs. The senita cactus is equally dependent upon the moth, the only species that pollinates its flowers. Senita cacti and seni...
Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands
...serves like a platform underneath vast expanses of northern
forests and wetlands that are rooted, literally, in melting permafrost in many northern
ecosystems. But rising atmospheric temperatures are accelerating rates of permafrost thaw in norther...
Genetic analysis finds greater threat in frog-killing fungus
...tes in the Sierra Nevada. Rana sierrae is found in northern
Sierra Nevada and represented in the study by frogs at the sites at Little Indian Valley, Summit Meadow and Mono Pass, while Rana muscosa is found in southern Sierra Nevada, where study sites Laurel Lake, Hitchcock Lakes and Woods Lake are located. ...
Satellite tracking will help answer questions about penguin travels
... penguins that have been treated at two centers in northern
Argentina after their feathers were fouled with oil. The birds will be released into the Atlantic Ocean and their movements traced using satellites and the Internet. The idea is to plug a critical gap in the knowledge of the Magellanics...
Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
...abundant bluefin tuna populations off the coast of northern
Europe. The chronicle of decimation of the bluef...housie University show majestic bluefins teemed in northern
European waters (North Sea, Norwegian Sea, Skaggerak, Kattegat, and Oresund ) for a few months each ...
Coelacanth fossil sheds light on fin-to-limb evolution
...ted from Paleozoic sediments at Beartooth Butte in northern
Wyoming. Even though they both have been called living fossils, the discovery suggests that the two living groups of close fish relatives of tetrapods (lungfish and coelacanth) are both highly specialized, according to Friedman. Both groups acquire...
$9 million EPSCoR grant to foster integrated research
...lines together to offer a more complete picture of northern
ecological and social systems. We will be addressing one of the most critical issues in the Northsocio-economic sustainabilityand we will be doing so by inviting researchers from all different fields to the table, said Peter Schweitzer, Alaska EPSC...
Presence of wolves allows aspen recovery in Yellowstone
... years, young aspen trees are growing again in the northern
range of Yellowstone National Park. The findings...nditions and issues in many areas, Ripple said. In northern
Yellowstone, we finally have some good news to report. Its just a start, but its a pretty good start...
Rise of dinosaurs in Late Triassic more gradual than once thought
...- Fossils discovered in the oft-painted arroyos of northern
New Mexico show for the first time that dinosaurs and their non-dinosaur ancestors lived side by side for tens of millions of years, disproving the notion that dinosaurs rapidly replaced their supposedly outmoded predecessors. The fossils were exca...
Philadelphia ecologist receives top Mongolia honor
... for Environmental Research, visited Lake Hvsgl in northern
Mongolia, along with Academy Senior Fellow Robert McCracken Peck, and recognized it as a treasure to be researched and protected. At least 2 million years old, Lake Hvsgl is about 100 miles long and 20 miles wide and is one of the most pristine lakes...
The origin of perennial water-ice at the South Pole of Mars
...inity of the planet to the Sun corresponded to the northern
summer a situation opposite to that of today. The model has shown that water at the North Pole was in an unstable condition and was easily transported to the South Pole in the form of water vapour, to then re-condense and freeze on the surface. U...
Fossil DNA illuminates life
...to date, all of southern Greenland and most of the northern
part were ice-free during the last interglacial period 125,000 years ago, when the climate was 5 degrees warmer than the interglacial period we currently live in. This theory however, was not confirmed by Willerslev and co-workers subsequent dating...
Wolves of Alaska became extinct 12,000 years ago, scientists report
...inction or near extinction of the gray wolves from northern
North America. Does the research have implications for global warming today" When environmental change happens very rapidly, animals cannot adapt, especially when the few places for them to move as habitats shrink; they are more likely to go exti...
Satellite images reveal link between urban growth and changing rainfall patterns
...e Ganges River in India and the Red River Delta in northern
Vietnam are included on the convention's list of wetlands of international importance. The growth of aquaculture in recent years has threatened coastal mangrove forest habitats in the Red River Delta. In response, the Vietnamese government has esta...
Tick-related disease thrives on cholesterol, study suggests
... New England, parts of the mid-Atlantic States and northern
California. The disease attacks immune cells called granulocytes, which the body normally uses to destroy infectious pathogens. In the current study, Rikihisa and her colleagues studied two groups of mice. Animals in one group lacked a protein im...
Specialized, bone-crushing wolves of Alaska disappeared long ago
...Pleistocene. Nevertheless, wolves disappeared from northern
North America at that time. To further explore the identity of Alaskas ancient wolves in the new study, the researchers collected skeletal remains of the animals from Pleistocene permafrost deposits of eastern Beringia and examined their chemical c...
Scientists close in on missing carbon sink
BOULDER--Forests in the United States and other northern
mid- and upper-latitude regions are playing a smal...ns and deforestation. The Science article, "Weak northern
and strong tropical land carbon uptake from vertical profiles of atmospheric CO2," was written by an...
Northern forests less effective than tropical forests in reducing global warming
Forests in the United States and other northern
mid- and upper-latitude regions are playing a smal...nt of the carbon dioxide assumed to be absorbed by northern
forests is instead being taken up in the tropics. "Our study will provide researchers with a much ...
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