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"Yellowstone's Wildlife." <i>Yellowstone National Park</i>. N.p., n.d. Web. 18 Sept. 2015.

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WCFN. "Wolves Help Biodiversity." World Council for Nature. WordPress.com, 12 Nov. 2012. Web. 21 Sept. 2015.

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Smith, D. W., R. O. Peterson, and D. B. Houston. 2003. Yellowstone After Wolves. BioScience 53: 330-40.

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Ripple, W. J., and R. L. Beschta. @2003. Wolf reintroduction, predation risk, and cottonwood recovery in Yellowstone National Park. Forest Ecology and Management 814: 299-313.

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"International Wolf Center." International Wolf Center RSS. International Wolf Center RSS, n.d. Web. 18 Sept. 2015.

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If there were no wolves in Yellowstone other species would grow to big and if there were to many wolves evencually there would be no elk so no food for wolves or scavengers.

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Actions Wildlife managers did to make changes?

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Actions Wildlife managers did to make changes?

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Before there were any wolves in Yellowstone the elk population grew to big and food for scavengers was hard to get. So Wildlife managers brought back the Wolves to create the nessasary balance to Yellowstone's ecosystems.

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How Important to biodiversity are Wolves?

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How Important to biodiversity are Wolves?

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Wovles who hunt for Elk and pick out the weak or Injured. By lowering the Elk population the more vegitation for the rest of the Elk. Since the wolves got reintroduced to yellowstone they hunt the Elk and Bison. Leaving the scraps for the scavengers (Coyote, Birds). Creating the balance in Yellowstone's ecosystems.

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Yellowstone Food Chain

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Yellowstone Food Web

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Make two food chains/webs illustrating the before and after situations. Including what happened to the populations.

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Make two food chains/webs illustrating the before and after situations. Including what happened to the populations.

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How is this organism important to the biodiversity?

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How is this organism important to the biodiversity?

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What kinds of actions did wildlife managers take to initiate changes?

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What kinds of actions did wildlife managers take to initiate changes?

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What happens when one species suddenly increases or decreases in number. What is the effect on other species in the ecosystem?

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What happens when one species suddenly increases or decreases in number. What is the effect on other species in the ecosystem?