The ecology, or how living organism interact with their environment, starts from the top, or the predator and goes down to the soil and streams. Before the wolf was introduced to the Yellowstone National Park, elk populations have grown too large for the land to sustain them. Due to the large number of elk eating the grass and trees, the grass has been eaten, and the soil has become loose due to the lack of grass to hold the soil in place (Hannibal 2012). The exposed soil makes the land more susceptible to changes in the weather (Hannibal 2012). When wolves were reintroduced into the Yellowstone National Park, the willow trees grew back, the Aspens grew more abundantly, and the grass managed to regrow(“In the Valley of the Wolves”). The elk still ate the grass, willows, and trees; however because the wolves were now preying on the elk the elk had to keep moving and stay in areas wher...
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"Living With Wolves - About Wolves - Questions About Wolves." Living With Wolves - About Wolves - Questions About Wolves. Living With Wolves.Web. 18 Feb. 2014.
Nealson, Christina. "The Truth About Wolves Is Hard to Find." High Country News. High Country News, 26 Apr. 2012. Accessed 11 Feb. 2014.
Outland, Katrina. "Who's Afraid of the Big Bad Wolf? The Yellowstone Wolves Controversy." Hawaii Pacific University. N.p., Nov. 2004. Web. 16 Feb. 2014.
Robbins, Jim, and W. Smith. "Hunting habits of wolves change ecological balance in Yellowstone.” New York Times Oct 18 (2005).
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