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Aug 8, 2012 11:53 PM by MTN News

Yellowstone bison population grows

Yellowstone National Park's bison population is up to 4,230, nearly 14% over last year's count.

Counts were conducted by airplane surveys.

The peak population estimate of 5,000 bison was recorded in the summer 2005.

The observed rate of population change this past year is within the natural range of expectation for wild bison, the park said.

This population estimate is used to inform adaptive management strategies under the Interagency Bison Management Plan (IBMP). The IBMP is a cooperative plan designed to conserve a viable, wild bison population while minimizing the risk of brucellosis transmission between bison and cattle.

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