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In the given set of materials, the reading passage and the lecture deal with the bison to debate whether their number plummeted with the European colonization. The reading passage is providing three pieces of evidence to prove its point, whereas the lecturer argues against it by providing three compelling rebuttals.
The reading passage asserts the idea that the first reason for the sharp decline in their numbers was overhunting. While the Native Americans took bison in large numbers, they only thinned the herds, taking only what they could use. The large scale of early European fur business had a large impact on bison numbers. The professor casts doubt because
The reading passage claims that the second way in which the European decimated the wild buffalo herds was through the use of modern weapons. This allowed them to take out large numbers of the animals with more accuracy
The reading passage mentions that the final reason for the dramatic decrease in the number of roaming bison after European settlement was the westward expansion of European, and later American settlements. Domestic cattle and horses Europeans brought were then in competition with the bison for natural resources and grazing land,
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