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Tag: "wolves" at biology news

Prey not hard-wired to fear predators

...to fear the Siberian tigers who stalk them" When wolves disappear from the forest, are moose still afraid ...acts ripple through the system. For example, when wolves returned to the Yellowstone region, they caused a cascade of events including a change in elk distri...

Ice Age extinction claimed highly carnivorous Alaskan wolves

...ences, called haplotypes, with those of modern-day wolves in Alaska and throughout the world. The fossils sh...We thought possibly they would be related to Asian wolves instead of American wolves because North America and Asia were connected during that time period. Th...

Wolves are suffering less from inbreeding than expected

... demonstrates that inbreeding is not affecting the wolves as badly as expected. The results show that it is ...ses have shown that inbreeding is negative, inbred wolves produce less number of pups, says Staffan Bensch, one of the spokespersons of the research team.. ...

Cougar predation key to ecosystem health

...ical ripple effects following the disappearance of wolves in the American West ?may cause land managers to r... of how the loss of an important predator, such as wolves or cougar, could affect such a broad range of other plant and animal species. But the evidence is no...

Research: Snails were overlooked contributors to marsh destruction

...cesses, including sharks in the Gulf of Mexico and wolves in Yellowstone Park," Silliman said. Native and abundant, dime- to quarter-sized periwinkle snails can often be seen hanging on cordgrass above the water line. Contrary to appearances, they don't actually eat the grass, or at least not much of it. ...

Wolves' top-down effect

... near the town of Banff, Alberta, Canada. But once wolves left this area, elk grew more plentiful, browsing ... role played by a top predator. In the mid-1980s, wolves naturally recolonized the Bow Valley of Banff National Park in Alberta, Canada. The nearby town of B...

Genome Sequence for Haemophilus Influenzae Completed

...ves, moose, and otters. (The ecological studies of wolves and moose on Isle Royale, which started in 1959, a...d here have been applied to the re-introduction of wolves to Yellowstone National Park.) Weisel examined wolf prey hair with light and electron microscopy wi...

Otter adaptations: How do otters remain sleek and warm

...ves, moose, and otters. (The ecological studies of wolves and moose on Isle Royale, which started in 1959, a...d here have been applied to the re-introduction of wolves to Yellowstone National Park.) Weisel examined wolf prey hair with light and electron microscopy wi...

Proposal would allow wild animals to roam North America

...ology, pointing to the controversy that raged when wolves were reintroduced to Yellowstone National Park in ...system. For example, when humans almost wiped out wolves and grizzly bears in the United States, the species dynamics shifted. The loss of wolves and grizzli...

Ocean climate predicts elk population in Canadian Rockies

...eeper the snow, the further they sink. Conversely, wolves have relatively light, sleek bodies and big, wide ... that act like snowshoes. In the Canadian Rockies, wolves rely on elk meat for 40 to 70 per cent of their diet. "The elk are already at a deficit in the wint...

Gray wolves maintain the food chain in winter

... - the reintroduced gray wolf (Canis lupus). Gray wolves inhabited most of North America until US extirpati...avengers. Unlike mountain lions and grizzly bears, wolves abandon their prey (usually elk or moose) once sated, leaving much-coveted leftovers for ravens, eag...

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