Question 1

What percentage of the population are children 4 years old or younger in Western Europe?

Accepted Answer

A)   2.5
B)   5
C)   10
D)   17
E)   22F) A) and D)
G) None of the above

Question 2

After the demographic transition, birth rates

Accepted Answer

A)   death rates exceed birth rates.
B)   equal 2 × death rates.
C)   outpace death rates.
D)   equal death rates.
E)   None of these choices are correct.F) B) and E)
G) C) and D)

Question 3

Humans are iteroparous.

Accepted Answer

A) True 
 B)False

Question 4

What average global total fertility rate is needed for zero population growth?

Accepted Answer

A)   1
B)   2
C)   2.3
D)   2.59
E)   None of the choices are correctF) A) and B)
G) A) and C)

Question 5

In mark-recapture, if number of individuals marked in first catch = 10, number of marked recaptures in second catch = 4, and total number of second catch = 8, what is the total population size?

Accepted Answer

A)   22
B)   24
C)   42
D)   20
E)   40F) All of the above
G) A) and B)

Question 6

Lions, leopards and other large terrestrial predators maintain well-defined territories. What kind of dispersion pattern would this produce?

Accepted Answer

A)   clumped
B)   clustered
C)   uniform
D)   random
E)   logisticF) A) and B)
G) C) and E)

Question 7

Which of these organisms is NOT iteroparous?

Accepted Answer

A)   humans
B)   oak trees
C)   bears
D)   dogs
E)   agave plantsF) A) and E)
G) None of the above

Question 8

_____ selected species have a low rate of per capita growth.

Accepted Answer

A)   r-
B)   p-
C)   K-
D)   n-1
E)   n-F) C) and E)
G) B) and C)

Question 9

Dispersion is

Accepted Answer

A)   the ability to move.
B)   the rate of movement.
C)   the spatial distribution of reproduction.
D)   the spatial distribution of individuals.
E)   the timing of reproduction.F) All of the above
G) B) and E)

Question 10

Drought and floods are considered to be density-dependent factors potentially affecting population size.

Accepted Answer

A) True 
 B)False

Question 11

In a demographic transition, death rates decline before birth rates.

Accepted Answer

A) True 
 B)False

Question 12

If resources are increased, carrying capacity increases.

Accepted Answer

A) True 
 B)False

Question 13

The per capita growth rate of a population can be defined as

Accepted Answer

A)   N.
B)   unchanging for a species.
C)   birth minus death.
D)   exponential growth.
E)   logistic growth.F) A) and E)
G) A) and C)

Question 14

Many species of birds form large flocks. What dispersion pattern describes this behavior?

Accepted Answer

A)   random
B)   uniform
C)   rapid
D)   social
E)   clumpedF) All of the above
G) B) and E) E

Question 15

Demography is the study of how births and deaths change population sizes over time.

Accepted Answer

A) True 
 B)False  True

Question 16

K-selected populations reproduce quickly.

Accepted Answer

A) True 
 B)False  False

Question 17

Which of the following is not a typical characteristic of K-selected plant species?

Accepted Answer

A)   small size
B)   slow growth
C)   long life span
D)   few large seeds
E)   poor seed dispersalF) None of the above
G) A) and D)

Question 18

Random dispersion is rare compared to clumped dispersion.

Accepted Answer

A) True 
 B)False

Question 19

Organisms that reproduce repeatedly are said to be

Accepted Answer

A)   semelparous.
B)   cohorts.
C)   iteroparous.
D)   demographic.
E)   survivors.F) C) and E)
G) B) and E)

Question 20

If 100 females produce 50 offspring, the age specific fertility rate is

Accepted Answer

A)   0.75.
B)   0.5.
C)   2.
D)   50.
E)   impossible to calculate with this information.F) A) and E)
G) All of the above

Exam 56: Population Ecology

What percentage of the population are children 4 years old or younger in Western Europe?

Correct AnswerverifiedShow Answer

After the demographic transition, birth rates

Correct AnswerverifiedShow Answer

Humans are iteroparous.

Correct AnswerverifiedShow Answer

What average global total fertility rate is needed for zero population growth?

Correct AnswerverifiedShow Answer

In mark-recapture, if number of individuals marked in first catch = 10, number of marked recaptures in second catch = 4, and total number of second catch = 8, what is the total population size?

Correct AnswerverifiedShow Answer

Lions, leopards and other large terrestrial predators maintain well-defined territories. What kind of dispersion pattern would this produce?

Correct AnswerverifiedShow Answer

Which of these organisms is NOT iteroparous?

Correct AnswerverifiedShow Answer

_____ selected species have a low rate of per capita growth.

Correct AnswerverifiedShow Answer

Dispersion is

Correct AnswerverifiedShow Answer

Drought and floods are considered to be density-dependent factors potentially affecting population size.

Correct AnswerverifiedShow Answer

In a demographic transition, death rates decline before birth rates.

Correct AnswerverifiedShow Answer

If resources are increased, carrying capacity increases.

Correct AnswerverifiedShow Answer

The per capita growth rate of a population can be defined as

Correct AnswerverifiedShow Answer

Many species of birds form large flocks. What dispersion pattern describes this behavior?

Correct AnswerverifiedE

Demography is the study of how births and deaths change population sizes over time.

Correct AnswerverifiedTrue

K-selected populations reproduce quickly.

Correct AnswerverifiedFalse

Which of the following is not a typical characteristic of K-selected plant species?

Correct AnswerverifiedShow Answer

Random dispersion is rare compared to clumped dispersion.

Correct AnswerverifiedShow Answer

Organisms that reproduce repeatedly are said to be

Correct AnswerverifiedShow Answer

If 100 females produce 50 offspring, the age specific fertility rate is

Correct AnswerverifiedShow Answer

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E

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True

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False

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