Question 1

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

Accepted Answer

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

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 C)
G) C) and D)

Question 3

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) None of the above
G) B) and E)

Question 4

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) A) and B)
G) A) and C)

Question 5

K-selected populations reproduce quickly.

Accepted Answer

A) True 
 B)False  False

Question 6

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) B) and E)
G) C) and E)

Question 7

Humans are iteroparous.

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A) True 
 B)False  True

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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) A) and D)
G) B) and C)

Question 12

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) A) and D)
G) A) and E)

Question 13

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) A) and D)
G) A) and E) E

Question 14

Which of these organisms is NOT iteroparous?

Accepted Answer

A)   humans
B)   oak trees
C)   bears
D)   dogs
E)   agave plantsF) D) and E)
G) A) and C)

Question 15

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) C) and D)
G) C) and E)

Question 16

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) A) and E)

Question 17

Organisms that reproduce repeatedly are said to be

Accepted Answer

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

Question 18

If resources are increased, carrying capacity increases.

Accepted Answer

A) True 
 B)False

Question 19

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 E)
G) B) and E)

Question 20

Random dispersion is rare compared to clumped dispersion.

Accepted Answer

A) True 
 B)False

Exam 56: Population Ecology

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

Correct AnswerverifiedShow Answer

After the demographic transition, birth rates

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Dispersion is

Correct AnswerverifiedShow Answer

K-selected populations reproduce quickly.

Correct AnswerverifiedFalse

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

Correct AnswerverifiedShow Answer

Humans are iteroparous.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedTrue

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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

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

Correct AnswerverifiedE

Which of these organisms is NOT iteroparous?

Correct AnswerverifiedShow Answer

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

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

Organisms that reproduce repeatedly are said to be

Correct AnswerverifiedShow Answer

If resources are increased, carrying capacity increases.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Random dispersion is rare compared to clumped dispersion.

Correct AnswerverifiedShow Answer

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False

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True

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E

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