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  2. History of wolves in Yellowstone - Wikipedia

    en.wikipedia.org/wiki/History_of_wolves_in...

    The wolves in Yellowstone and the Greater Yellowstone Ecosystem fall within this population. In response to the change in status, state wildlife authorities in Idaho and Montana enacted quota-based hunting seasons on wolves as part of their approved state Wolf Management Plans.

  3. Wolf reintroduction - Wikipedia

    en.wikipedia.org/wiki/Wolf_reintroduction

    Opponents argue that the Yellowstone reintroductions were unnecessary, as American wolves were never in danger of biological extinction, since wolves still persisted in Canada. Opponents have also stated that wolves are of little commercial benefit, as cost estimates on wolf recovery are from $200,000 to $1 million per wolf.

  4. American West Nostalgia: Gander at Volcanic Eruptions, Wolves ...

    www.aol.com/american-west-nostalgia-gander...

    It is estimated that approximately 500 wolves are present now throughout the Greater Yellowstone Ecosystem. The wolves’ presence played a vital role in increasing the health and diversity of ...

  5. Elk antipredator behavior - Wikipedia

    en.wikipedia.org/wiki/Elk_antipredator_behavior

    A cow/calf winter herd is a herd that consists only of female elk and their young. In a normal winter, defined as one where there is a decent amount of snow fall, one study found that when the groups of cows and calves were safe from predation by wolves, about 75.6-83.0% of their diet was made up of graze whereas when wolves were present this number dropped to 61.6-69.4%. [3]

  6. Oldest Wolf in Yellowstone Just Made News by Having Another ...

    www.aol.com/oldest-wolf-yellowstone-just-made...

    The Yellowstone Wolf Project started in 1995 and since it's become one of the most detailed studies of wolves the world. They also focus on studying the day-to-day life and social interactions of ...

  7. Wolf pack chases hundreds of elk in Yellowstone. Overhead ...

    www.aol.com/news/wolf-pack-chases-hundreds-elk...

    Video shows the intense moment a pack of wolves chases down a herd of more than 300 elk in Yellowstone National Park. The video follows the elk herd as it races away from wolves trailing behind it.

  8. List of animals of Yellowstone - Wikipedia

    en.wikipedia.org/wiki/List_of_animals_of_Yellowstone

    With the reintroduction of gray wolves (Canis lupus) to Yellowstone National Park, much interest has been shown regarding the effects of a restored wolf population on both grizzly bears and black bears. Grizzly bears, black bears, and gray wolves have historically coexisted in much of the same range throughout a large portion of North America.

  9. Trophic cascade - Wikipedia

    en.wikipedia.org/wiki/Trophic_cascade

    A classic example of a terrestrial trophic cascade is the reintroduction of gray wolves (Canis lupus) to Yellowstone National Park, which reduced the number, and changed the behavior, of elk (Cervus canadensis). This in turn released several plant species from grazing pressure and subsequently led to the transformation of riparian ecosystems. [21]