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Unformatted text preview: CHAPTER 52
∗ Population density
Age structure diagram
Life history ∗
∗ Zero population growth
R-selected populations ∗
∗ Limiting factors
1. Draw a diagram illustrating the 3 types of dispersion patterns. Give an example of each
type of dispersion pattern.
2. Draw and label a graph that shows the 3 types of survivorship curves.
3. Describe the characteristics of populations which exhibit Type I, Type II, and Type III
survivorship curves, and give an example of each type of organism.
4. Draw and label the three different types of age-structure diagrams: 1) for a developed
country with slow or zero population growth (Sweden), 2) a developed country with
moderate population growth (U.S.), and 3) a country with a rapidly growing population
(Mexico). Explain how you can determine what type of population growth is occurring
by looking at an age-structure diagram.
5. Explain how population growth is determined. Specifically, what factors (or numbers)
are required to determine population growth?
6. Compare and contrast r-selected and K-selected populations.
7. Draw and label a graph showing exponential population growth, under the conditions of
8. Draw and label a graph showing logistic population growth. Explain why this type of
growth plateaus or levels off after a period of time, as the carrying capacity is reached.
9. Explain how density-dependent and density-independent factors limit population growth.
10. Explain why some species have cyclic increases and decreases in population growth.
Why would predators and their prey have cyclic population fluctuations that are directly
related to each other? ...
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