#Head hits can be reduced in youth footballless contact during practice could mean a lot less exposure to head injuries for young football players according to researchers at Wake Forest Baptist Medical center and Virginia Tech.
and appearances resulting in fish in their larval stage that bear little to no resemblance to their adult counterparts.
A diminished number of seed cones has an effect on grizzly bears the scientists say; the bears regularly raid squirrel seed caches to prepare for winter hibernation.
In the past low years for whitebark pine cones have led to six times more conflicts between grizzlies and humans as hungry bears look for food in campgrounds says Crone.
Now concerns about viability of whitebark pine populations are one of the main reasons grizzly bears in Yellowstone national park are listed still as threatened under the Endangered Species Act.
Birds squirrels and bears are not the only species that depend on whitebark pine. Vast stands of whitebark pine help to maintain the mountain snowpacks that provide water to more than 30 million people in 16 U s. states each year.
Whitebark pines are often the only trees at the highest elevations. Their branches retain snow as it blows across gusty mountaintops.
Their shade moderates snow-melt in the spring keeping flows down the mountain in check. A small percentage of whitebark pine trees have outlived the ongoing destruction by pests and disease.
--and there are dozens--sacred lotus bears the closest resemblance to the ancestor of all eudicots a broad category of flowering plants that includes apple cabbage cactus coffee cotton grape melon peanut poplar
Although scant evidence exists of risk of food-borne disease spread by wildlife the risk of rejection of produce by major buyers is too much for most growers to bear say Gennet
Different species of fig bear fruit at different times so in areas where there are a large variety of fig species fruit can be available all year round.
#Black bears on the rebound in Nevadaa new study from the Wildlife Conservation Society (WCS) and the Nevada Department of Wildlife (NDOW) has pieced together the last 150 years of history for one of the state's most interesting denizens:
the black bear. The study which looked at everything from historic newspaper articles to more recent scientific studies indicates that black bears in Nevada were distributed once throughout the state
but subsequently vanished in the early 1900s. Today the bear population is increasing and rapidly reoccupying its former range due in part to the conservation and management efforts of NDOW and WCS.
Compelled in part by dramatic increases in human/bear conflicts and a 17-fold increase in bear mortalities due to collisions with vehicles reported between the early 1990s and mid-2000s WCS and NDOW began a 15-year study of black bears in Nevada
that included a review of the animal's little-known history in the state. Over the course of the study black bears were captured both in the wild and at the urban interface in response to conflict complaints.
The captured animals used in the study (adult males and females only) were evaluated for multiple physiological indicators including condition sex reproductive status weight
and age prior to being released. From the information gathered the population size in the study area was estimated to be 262 bears (171 males 91 females.
Confirmed sightings and points of capture from 1988 to present were mapped and presented in the report to illustrate current population demographics
and will be used to inform bear management in Nevada. It's critical to understand the population dynamics in a given area
This includes decisions on everything from setting harvest limits to habitat management to conservation planning in areas where people will accept occupation by bears.
or expanding bear population or people moving to where bears are located. The answer is both.
Nevada's Black bear History Unraveledin looking to integrate information on the historical demographics of black bears into their study the authors found that little published scientific research
and confirmed that black bears were present throughout the state until about 1931. At that point the authors concluded that the paucity of historical references after 1931 suggest extirpation of black bears from Nevada's interior mountain ranges by this time.
The historical records paint a very different picture of Nevada's black bear than what we see today.
This new perspective is a good indication of what bear management in this state could involve should the population continue to expand said the study's lead-author Carl Lackey of NDOW.
The authors believe that while over-hunting and conflicts with domestic livestock contributed to the bear's local extinction in the Great Basin landscape changes due to clear-cutting of forests throughout western and central Nevada during the mining booms of the late 1800s played an important role as well.
But as fossil fuels replaced timber as a heat and energy source forestry and grazing practices evolved
and reforestation and habitat regeneration occurred in parts of the their former range the bears rebounded.
Using the information gathered in their review of historic documents the scientists mapped the distribution of black bears within the interior of Nevada during the 1800s and early 1900s.
The study Bear Historical Ranges: Expansion of an Extirpated Bear Population appears in the current online edition of the Journal of Wildlife Management.
Co-authors include Carl W. Lackey of the Nevada Department of Wildlife Jon P. Beckmann of the Wildlife Conservation Society and James Sedinger of the University of Nevada Reno.
and Senior Scientist Woods Hole Research center Falmouth USA Think of migration of birds to the Arctic in the summer and hibernation of bears in the winter:
A gene exploits a rival gene's excesses sabotaging any sperm that bear a rival's chromosome.
--so that maturing sperm that bear chromosomes with the susceptible allele (call that one a) end up defective and discarded.
And you could give yourself a gold medal for being a bona fide recycling polar-bear-saving rock star.
and mammal species ranging from black-chinned hummingbirds to black bears. A 2007 study by researchers at the University of Northern Arizona estimated that 150 Clark's nutcrackers cached roughly 5 million pinyon pine nuts in a single season benefiting not only the birds themselves but also the pines
His prediction bears fruit in the new work in which finely detailed patterns of graphene are laced into gaps created in sheets of h-BN.
While polar bears represent a sad disclaimer for a warming Arctic the recent count of almost 1000 wild yaks offers hope for the persistence of free-roaming large animals at the virtual limits of high-altitude wildlife.
since about 1930--during the Smokey Bear era--aggressive forest-fire suppression has had a far greater influence on shifts in dominant tree species than minor differences in temperature.
Each ranch also lost at least one ear-tagged calf to a bear attack during the two-year study
panthers coyotes bears or even vultures. A bite wound to the front or back of the calf's neck was most often the mark of a panther attack she said
Coyote and bear attacks were much more damaging with the calf's body badly bruised
The report identifies important secure habitats and landscape connections for five species--bull trout westslope cutthroat trout grizzly bears wolverines and mountain goats.
and that there are currently 466 e-cigarette brands online offering more than 7700 flavors including candy flavors such as gummy bear
When crops are pollinated adequately on the other hand the plants bear more fruit and their nutrient content changes.
the shrimp Liropus minusculus with its phantasmagoric appearance and the gecko which bears a disturbing likeness to some imaginary monster.
One example is the terra preta in the Amazon basin which bears silent witness to the presence of a Pre-columbian agricultural society in
and wild boar--the boar is also a nest predator--but also corvids rodents bears and other species of nest predators
and as a result of the pressures brought to bear by people close to them and doctors 10%of women smokers give up smoking
I in Morocco have calculated that hairs that reflect infrared light may contribute significant insulating power to the exceptionally warm winter coats of polar bears and other animals.
Biophotonics expert Priscilla Simonis a researcher at the University of Namur and lead author of the Optics Express paper was intrigued by the ability of polar bears to insulate their bodies to temperatures of 37 degrees Celsius (98.6 F
when outside temperatures are a frigid-40 C(-40 F). The feat was given especially impressive that the bears have a layer of fur that is only 5 centimeters thick.
Why is the polar bear fur much more efficient than what we can develop for our housing?
Her lab recently worked with the Missouri Department of Conservation to analyze black bears in Missouri
polar bear-killing emissions released into our carbon-choked friendly skies. That article cites Southwest as the leading U s. airline for carbon footprint awareness,
the Inuit in far northern North america looked to polar bears to see how thick the walls of their igloos should be.
The bears had configured the snowpack to stay warm. In the deserts of the American Southwest, native people studied how thick the mud walls of prairie dog chambers were to determine the best way to stay cool in that environment.
featuring an Aussie outback adventurer called  Les Hiddins (a Macgyver meets Bear Grylls character) who impressed us with his passionate knowledge of Indigenous foods.
We just opened a polar bear and grizzly bear habitat. The water for the polar bears is 54 degrees
they have salinated water with fish, and it s a good place for them to dive deep.
The grizzlies have a tide pool that goes up and down and a stream stocked with trout. You ve said that Baby boomers are the worst culprits in terms of animal conservation.
a dog is a pig is a bear is a boy. Meat today is the new asbestos, more murderous than tobacco,
We even have black bears. What your playing schedule when you â â¢re not on tour?
< Back - Next >
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011