Tag: "wolves" at biology news
Computer models expose humans as main cause of caribou decline
...em. Some variables included altering the number of wolves
(a caribou predator), moose (the main prey of wolves), and edible vegetation in the area. As well, a "natural" model--the ecosystem as it would be without any humans and thus no industrial development--was created, as was a "business as usual" model,...
Wolf reintroduction reshapes Yellowstone ecology
The 1995 reintroduction of wolves
in the northern range of Yellowstone National Park...e of BioScience, argue that fear of predation when wolves
are present changes grazing patterns, prompting grazers to avoid sites that deny them easy escape an...
Dog genome assembled
...addition to the boxer, nine other dog breeds, four wolves
and a coyote were sampled to generate markers that can be used in disease studies in any dog breed. A preliminary set of about 600,000 single nucleotide polymorphisms (SNPs), which amounts to a SNP roughly every 5,000 DNA base pairs, is currently bei...
New map predicts where wolves will attack
...have developed a high-tech map that predicts where wolves
will prey on livestock, which in turn may allow wi...evealed several similarities among the sites where wolves
had preyed on cattle in the past. Each town in the two states was assigned a color-code ranging fr...
Study finds wide attitude gap on wolves
...Biology, survey results among people who live with wolves
in northern Wisconsin revealed that deeply rooted ...more powerful predictors of their attitudes toward wolves
than individual encounters, or losses of pets and livestock. Using a mail-back survey with a pool ...
Non-lethal methods can resolve conflicts between bears and humans
...to keep domesticated dogs on home properties. Some wolves
simply tolerated the mild electronic shocks and continued to feed "There is no single solution for every situation but individuals and communities should be given a variety of options so they can tailor their responses to their needs and tolerances,"...
Helping carnivores and people co-exist
and other large carnivores threaten people and liv...h strobe lights and sound recordings can help keep wolves
and bears away. "High-technology devices are much more expensive, complicated and limited in effect...
Wolves are rebalancing Yellowstone ecosystem
CORVALLIS, Ore. - The reintroduction of wolves
into Yellowstone National Park may be the key to m...ear and remarkable linkage between the presence of wolves
and the health of an entire streamside ecosystem, including two species of cottonwoods and the myria...
Gray wolves feed the masses while hunters feed the few
(Canis lupus) and human hunters both provide resou...were found at wolf than hunter kills implying that wolves
much more than hunters promote ecosystem diversity and, ultimately, the overall health of the Yellow...
First extrasolar planets, now extrasolar moons
Everyone knows our Moon: lovers stare at it, wolves
howl at it, and ESA recently sent SMART-1 to study it. But there are over a hundred other moons in our Solar System, each a world in its own right. A moon is a natural body that travels around a planet. Moons are a by-product of planetary formation ...
Predators: an overlooked player in plant-pollinator relationships
...dators can help to shape ecological communities -- wolves
promote the growth of young trees through predation on moose, otters keep kelp forests thriving by preying on sea urchins, etc. Yet we have seldom considered the consequences of predation on animals that help plants reproduce. Predation on pollinato...
Yellowstone wolves, grizzlies and moose 'dysfunctional' study says
... warns that a proposal to remove grizzly bears and wolves
living in the Greater Yellowstone Ecosystem (GYE) ...ting rising population levels of grizzly bears and wolves
as evidence of conservation success. However, the authors of the study say that a simple increase i...
Scripps Institution researchers develop new approach for designing marine reserves
... Park for the purpose of having more bison or more wolves
or more bears so that you can keep hunting them outside the park." The research is part of a larger effort in cooperation with the World Wildlife Fund, Scripps's partner in a decade-long collaboration to apply science to practical solutions for th...
Once big bad wolf, now man's best friend: Science studies trace dogs' origins
...w World, the other in the Old, found that Eurasian wolves
were dogs' likely forebears. Breeding over the las...ether dogs in the New World were domesticated from wolves
there, independently from Old World dogs, or whether the two groups were related. The researchers co...
Too many turtles may end up as roadkill
...turtles...in the company of grizzly bears and gray wolves
as fauna for which road networks may be a key limiting factor to population recovery efforts." In areas where buffer zones and large roadless areas are not feasible, turtles could be protected from collisions by building road crossings. This work is ...
Rabies vaccinations could help save Ethiopian wolf
... research shows that vaccinating a fraction of the wolves
could protect this critically endangered species f...protect even the smallest populations of Ethiopian wolves
from rabies is both worthwhile and urgent," say Daniel Haydon of the University of Guelph in Ontario...
Snowmobiles can stress wildlife
...ss hormones of animals in national parks. "Elk and wolves
show physiological stress responses to snowmobiles...coids ("stress hormones") in the feces of elk and wolves
in several national parks. When chronically elevated, glucocorticoids can cause adverse effects such...
Study suggests global extinction crisis more serious than previously thought
...to scattered remnant groups as, for example, gray wolves
and brown bears in the coterminous United States. The study also showed that species differ in their resistance to human disturbance. For example, Pere Davids deer, originally from China, has lost all of its populations and survives only in captivity...
Tent caterpillars and their parasites
...ed on these caterpillars would be equivalent to 82 wolves
in the same one km2 area. Given the immense scale of the predator-prey battle going in our backyards, parks, and forests, it is not surprising that the forest tent caterpillar is the principal defoliating insect of trembling aspen in the boreal fores...
Wolves decline, moose increase
... at Michigan Tech, said the 2002 survey counted 17 wolves
on the island, as opposed to 19 last year. The isl...e opportunity for such research. Peterson said the wolves
suffered a mortality rate of almost 50 percent this winter and that last year's seven pups kept the ...
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