OH, GIVE ME A HOME WHERE THE BUFFALO ROAM…
AMERICAN BISON (Bison bison)
IUCN Status: Near threatened
In 2017, the Yellowstone bison population was approximately 4,800 individuals; their population grows by between 10-17% each year. Due to public conflicts associated with the risk of disease transmission of brucellosis from bison to cattle, the state of Montana sued the National Park Service to decrease the population to limit the movements of bison outside the park. The settlement of this 1995 lawsuit required that bison be maintained around a target population of 3,000 individuals. As a result, culling occurs every year (1,171 were culled in 2017). The NPS is working with federal, state, and tribal partners to develop a quarantine program to reduce the culling of this iconic species. There has never been a single recorded case of a bison transmitting brucellosis to a cow, ever. However, there are many occasions of brucellosis being transmitted to cows from elk.
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