Chapter 14. 14·1–14·6 Population ecology is the study...

Show What You Know - Self Quiz
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You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Check your understanding of concepts from 14·1–14·6 Population ecology is the study of how populations interact with their environments by answering the following questions.

1.

1. As population size increases, the individuals within the population generally experience all of the following EXCEPT:

A.
B.
C.
D.
E.

Correct. (See section 14·4 A population’s growth is limited by its environment.)
Incorrect. (See section 14·4 A population’s growth is limited by its environment.)

2.

2. A population of scarab beetles has an annual per capita birth rate of 0.8 and an annual per capita death rate of 0.5. Estimate the number of individuals added to or lost from a population of 1000 individuals in one year.

A.
B.
C.
D.
E.

Correct. (See section 14·3 Populations can grow quickly for a while, but not forever.)
Incorrect. (See section 14·3 Populations can grow quickly for a while, but not forever.)

3.

3. What type of effect has an increasing impact as the population size increases?

A.
B.
C.
D.
E.

Correct. (See section 14·4 A population’s growth is limited by its environment.)
Incorrect. (See section 14·4 A population’s growth is limited by its environment.)

4.

4. The growth rate of a population at its carrying capacity:

A.
B.
C.
D.
E.

Correct. (See section 14·4 A population’s growth is limited by its environment.)
Incorrect. (See section 14·4 A population’s growth is limited by its environment.)

5.

5. As the manager of a salmon fishery, you know that K for the species you manage is about 10 million individuals. At the present time the population is at 6 million. How many fish should you allow to be caught this year?

A.
B.
C.
D.
E.

Correct. (See section 14·6 “Maximum sustainable yield” is a useful but nearly impossible-to-implement concept.)
Incorrect. (See section 14·6 “Maximum sustainable yield” is a useful but nearly impossible-to-implement concept.)

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