

Human: What caused the population of the bison to decrease in the United States?

Assistant: The over-hunting of bison by European settlers during the settlement of the United States was a major factor in the dramatic decline of their population.  In particular, bison were often shot for sport or profit, primarily in the 19th century. Eventually, it became a major environmental issue as the landscape of the plains was dramatically changed and the species’ numbers dropped.


Human: What caused the population of the bison to decrease in the United States?

Assistant: The rapid alteration of bison habitat and practices of hunting and slaughtering bison by American settlers and the US government caused the bison population to decrease substantially in the 19th century.  The bison population is now nearly non-existent, decreasing from around 50 million in 1800 to 4,080 bison remaining in North America in 2011, which placed the bison among the world's most endangered species.
What caused the population of the bison to decrease in the United States?
The over-hunting of bison by European settlers during the settlement of the United States was a major factor in the dramatic decline of their population.  In particular, bison were often shot for sport or profit, primarily in the 19th century. Eventually, it became a major environmental issue as the landscape of the plains was dramatically changed and the species’ numbers dropped.
The rapid alteration of bison habitat and practices of hunting and slaughtering bison by American settlers and the US government caused the bison population to decrease substantially in the 19th century.  The bison population is now nearly non-existent, decreasing from around 50 million in 1800 to 4,080 bison remaining in North America in 2011, which placed the bison among the world's most endangered species.