T. Trimpe 2008 http://sciencespot.net/

Challenge #3Population Dynamics

1. If a population of 50 cottontail rabbits produce 300 young in a year, what is the birth rate for this population?

2. True or False – If the birth rate < death rate, the population will increase in size.

3. What term refers to the movement of animals into a population?

4. Use the graph to answer these questions.

A. In which year did the population decrease the most?

B. In which year did the population increase the most?

Answer each question.

Rabbit Population StudyData recorded at the end of each year.

1. If a population of 50 cottontail rabbits produce 300 young in a year, what is the birth rate for this population?

2. True or False – If the birth rate < death rate, the population will increase in size.

3. What term refers to the movement of animals into a population?

4. Use the graph to answer these questions.

A. In which year did the population decrease the most?

B. In which year did the population increase the most?

The answers are …

300 rabbits per year

Immigration

Year 5

Rabbit Population StudyData recorded at the end of each year.

False – The population would decrease.

Year 2