Question

Why was the reduction of the bison population to under 1,000 individuals a bottleneck event for the species? a. It drastically reduced the gene pool of the species. b. It reduced the territorial range available to the species. c. Foreign genes were introduced by crossbreeding with cattle. d. It reduced the prevalence of recessive traits

Answer 1

Bottleneck events are named this due to the extreme loss of genetic diversity. Though this can sometimes be deceiving due to some species huge differences between actual population and effective population. So, it is A. If you want to discuss real vs. effective pops I can do that as well. @keylap

Answer 2

Thank you !!

Answer 3

@mrdoldum

Answer 4

@keylap

Answer 5

Sorry, hit the wrong button. Anyway, no problem. Let me know if you are interested in the actual vs. effective pop thing.