Yellowstone (Case Study)

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  • Created by: cowsgomoo
  • Created on: 30-04-18 17:13

Yellowstone national park

  • 1872 - Made a national park
  • 1900s - Wolves considered dangerous
  • 1926 - Wolves disappeared from the national park
  • 1995 - Wolves reintroduced
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Impact of wolves

The wolves prevented deer from entering certain places. As the deer stopped grazing there, trees and grass began to grow. This led to more food for other animals including bears, beavers, rabbits etc. The growing shrubs stabilised the ground, leading to straighter rivers and landscape changes.

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Humans introducing a new species

  • Increase biodiversity
  • Money from tourism
  • Return to natural, original ecosystem
  • Wolf conservation and scientific study
  • Attacks on humans
  • Fear
  • Loss of livestock
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