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Bison Herd

posted Sep 4, 2013, 7:39 AM by Marschal Fazio   [ updated Aug 26, 2014, 12:20 PM ]
Rancher Harriet is thinking of shifting her operation from cattle to American Bison, but she needs to know how well bison will do on her ranch. She buys 50 female bison that are already inseminated and places 10 of them, picked at random, into their own pasture. The ten females serve as a sample from which rancher Harriet collects demographic data over one year. Use her data to answer the questions below.

1. What is the total number of births and deaths among the sample population?

2. What are the per capita  birth and death rates (b and d) for the entire bison herd, based on this sample?

3. What is the estimated per capita growth rate r?

4. Based on these estimates, what is the size of Rancher Harriet's entire bison herd at the end of the year?


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