NAME ______DATE ______

Chapter 4: Population Ecology Study Guide

Match each term with the correct definition.

1.  _____ Population density

2.  _____ Dispersion

3.  _____ Density-independent factor

4.  _____ Density-dependent factor

5.  _____ Population growth rate

6.  _____ Emigration

7.  _____ Limiting Factor

8.  _____ Immigration

9.  _____ Mortality

10.  _____ R-strategist

11.  _____ K-strategist

12.  _____ Demography

13.  _____ Natality

14.  _____ Zero population growth

15.  _____ Carrying capacity

Identify and draw each form of spatial distribution. Then list an example of an organism that would be distributed that way.

Spatial Distribution / Picture / Example

16.  What is something that could affect the dispersion of a population?

17.  Density-dependent factors are often [ biotic / abiotic ]

18.  Density-independent factors are often [ biotic / abiotic ]

19.  List some examples of each type of factor.

Dependent:

Independent:

20.  Identify the following as density-dependent or density-independent.

Situation / Density-dependent / Density-independent
Northern Pike feed on other fish, the yellow perch. An increase in the yellow perch population causes an increase in the northern pike population.
The BP oil spill in the Gulf of Mexico has harmed many aquatic organisms that live in the Gulf region.
A new strain of influenza (the flue) breaks out in New York City.
Hurricane Katrina forced thousands of people to leave New Orleans.

21.  Identify the concept shown in the picture.

What concept is this? ______

What can limit this? ______

______

______

22.  Summarize the two types of reproductive strategies and provide an example of each.

Strategy / Definition / Example
r-strategist
k-strategist

23.  Identify each graph as exponential or logistic, and then explain what each graph shows.

24.  Circle all of the advancements that have allowed the human population to grow exponentially. Then, underline all of the things that could LIMIT the human population.

medicine artificial insemination voluntary population control

war technology poor shelter agriculture disease domesticated animals famine weather lack of space pollution

25.  Why would overcrowding be a limiting factor for humans? (think back to last chapter and the use of resources by various organisms!)

26.  Identify two ways in which a population can grow.

27.  Identify two ways in which a population could decrease.

28.  Use a mathematical equation to represent ZPG.

29.  What is the future of population growth in the world?