Tag: "northern" at biology news
DNA research reveals a new whale species
...logy. Long considered to be another population of northern
right whale, a species numbering fewer than 300 in...e total number of species to three - adding to the northern
right whale in the North Atlantic Ocean and the southern right whale. Both of those species are...
New rare dinosaur tracksite found in northern Wyoming
...97, near the town of Shell in the Bighorn Basin of northern
Wyoming, Indiana University geologist Erik Kvale found extensive dinosaur track-bearing deposits in 167 million-year-old rock in the Sundance Formation that was previously thought to have been totally underwater during the time when dinosaurs lived. ...
Mother nature cleans up human-made mess
...es where archeologists suspect past communities of northern
peoples camped 1,000 years ago," says Douglas. "Diatoms will be important indicators in tracking these past populations."...
Scientists launch the worlds first marine life census
...lity of tracking thousands of sea creatures in the northern
Pacific with the use of sophisticated electronic s...Block has successfully tagged and studied; and the northern
elephant seal, a marine mammal that has been the subject of intense research for nearly 30 years. Ot...
Animals regulate their numbers by own population density
...el - manage to control their own population in the northern
boreal forest of Canada. In a study to be published in the Nov. 23 issue of Nature, the researchers found that when arctic ground squirrel populations reached the maximum limit the environment could support, the females severely reduced reproduction ...
Unprecedented fire season in southern Africa aids air quality, climate change research
...st burning was in western Zambia, southern Angola, northern
Namibia, and northern
Botswana. Some of the blazes had fire fronts 20 miles long that lasted for days. The thick haze...
2000 FALL MEETING: updated press conferences, press registration, and other information
...an now measure these currents continuously in both northern
and southern hemispheres, even during magnetic sto...res in the boreal forest, i.e., that found at high northern
latitudes, are extensive and increasing in response to recent patterns of climate warming. The decad...
Florida research shows that for rice, warmer earth brings uncertain future
...said. If rice production ceased or moved into more northern
regions, it would have a severe impact on these already poor areas, she said. "The Third World regions have the potential to be hit hard," she said. The findings track earlier UF research on soybeans, peanuts and dry beans, although rice and dry bea...
Amphibian declines and deformities: what is the latest?
...mations, specifically facial cleft malformation in northern
leopard frogs. Dr. Steven Corn, USGS herpetologist, an expert in amphibian population monitoring work in the Northern Rockies. Dr. Chuck Peterson, Idaho State University, an amphibian monitoring researcher in Yellowstone National Park, whose work i...
How do I love whales? Let me count the ways
...ursig adds. "It only inhabits certain areas of the northern
and western Pacific Ocean. Bowheads can still be hunted by the Inuits, but only a few each year can be killed and permits are strictly regulated. The Inuits have taken some of their oil industry revenue and funded environmental projects, several of t...
USGS: Contaminants may play important role in California amphibian declines
...ty became decreasingly lower in tadpoles from both northern
and southern sample sites as the sites moved in a gradient from the coast to the higher elevations. Thus, tadpole populations in the mountains had lower cholinesterase values than those along the coast. Similar but less significant trends were seen i...
DNA research reveals new bird species in Colorado
...cies as the Greater sage-grouse, which is found in northern
Colorado and throughout 11 western states and two Canadian provinces. But over the years, differences in body size and unique plumage and behaviors led scientists to question this kinship. Compiling the evidence needed to formally designate a new sp...
Elephant seals - looking good
...ooks only a mother could love, the full-grown male northern
elephant seal (Mirounga angustirostris) gives the rest of us pause. With a large fleshy snout protruding from its two-to-six ton body, the male elephant seal can be quarrelsome and scrappy, bellowing during mating season with such ferocity that he ca...
Natural selection for lactose tolerance
...lactase persistence. Dr. Swallow reports that the northern
Europeans also have an unusually high frequency of...es to propose that this haplotype is common in the northern
Europeans because it is associated with the ability to digest milk. They believe that this property...
Changes in Australian ecosystems tied to arrival of exotic animals
...ness of summer monsoons that periodically drenched northern
Australia, triggering increased aridity over much of the continents interior and decreasing grasses. In January 1999, Miller and colleagues published a paper in Science magazine indicating the earliest humans who peopled Australia some 55,000 year...
With help from the Office of Naval Research, a right whale pied "Piper" shows the way to recovery for this highly endangered species
...has been tracked every step of her journey between northern
feeding grounds off New Brunswick, Canada, and sou...irst time the southward migratory path of a female northern
right whale; and, second, delivering that whale to the waiting Early Warning System observers. Pi...
New predatory dog-sized dinosaur unearthed on Madagascar
... (such as dromaeosaurids and ornithomimids) in the northern
hemisphere. In addition, the broad geographic distribution of these small-bodied theropods parallels that of their larger-bodied cousins, the abelisaurids, a finding that may have implications for plate tectonics, the theory that landmasses ...
A bizarre new predatory dinosaur unearthed on Madagascar
... (such as dromaeosaurids and ornithomimids) in the northern
hemisphere. In addition, the broad geographic distribution of these small-bodied theropods parallels that of their larger-bodied cousins, the abelisaurids, a finding that may have implications for plate tectonics, the theory that landmasses shift th...
Lake Titicaca study sheds new light on global climate change
...ea level on the Altiplano, or High Plateau, of the northern
Andes Mountains. ``The Altiplano is like a giant cup, and Titicaca is the deepest point in the vast plateau, so most of the precipitation in the Altiplano drains into the lake,`` says Stanford geologist Robert B. Dunbar, one of the authors of the ...
DNA deletion offers new evidence of mammals' origins
...ne in the southern hemisphere and the other in the northern
hemisphere. On the classic trees, the northern
and southern groups are mixed up." Geological evidence supports the phylogenies as well. Mammals fi...
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