AP Bio Chapter 52 Population Ecology

AP Bio Chapter 53 Population Ecology

1. A population is

2. Two important characteristics of a population are

3. List four different ways population density can be estimated.

4. Give the equation for the mark-recapture method of study:

Ex - In a mark-recapture study, an ecologist traps, marks and releases 25 voles in a small wooded area. A week later she resets her traps and captures 30 voles, 10 of which are marked. What is her estimate of the vole population in that area?

4. What are two ways that population changes?

5. List three types of population dispersal.

6. What is demography?

7. What are two areas that are of particular interest to demographers?

8. What is a life-table and what is a cohort?

9. A survivorship curve is a graphic way of representing the data in a life table. Identify the types of survivorship curves shown below, define them and give examples of groups that exhibit each curve. 10. What specific traits affect an organism’s life history?

11. What is the difference in semelparity and iteroparity? Unpredictable environments favor which one?

12. Give the two types of population growths, their equations, descriptions of environmental surroundings, and label on the graph below.

13. In logistic growth, populations can be K-selected or r-selected. Discuss each as to what is selected and impact on reproductive rate.

14. What is the difference in density dependent controls and density independent controls? Give examples.

15 What are age-structure graphs and what can be determined from them?