Question 1

The ability of individuals to disperse among habitat patches is related to their degree of isolation.

Accepted Answer

A) True 
 B)False  True

Question 2

In a metapopulation,the probability of extinction in a local population increases with

Accepted Answer

A) increasing patch size and increasing isolation. 
B) increasing patch size and decreasing isolation. 
C) decreasing patch size and increasing isolation. 
D) decreasing patch size and decreasing isolation. 
A) increasing patch size and increasing isolation. 
B) increasing patch size and decreasing isolation. 
C) decreasing patch size and increasing isolation. 
D) decreasing patch size and decreasing isolation. C

Question 3

Metapopulation persistence is a dynamic balance between the ________ and recolonization of empty habitat patches.

Accepted Answer

extinction

Question 4

The ________ effect refers to the increasing population size and decreasing risk of extinction that occurs with an increasing rate of immigration.

Accepted Answer

The answer of The ________ effect refers to the increasing...

Question 5

A(n)________ population cannot support positive population growth and is able to persist only when individuals immigrate from other local populations.

Accepted Answer

The answer of A(n)________ population cannot support positive population growth...

Question 6

Dispersal of individuals among local populations does not occur within a metapopulation.

Accepted Answer

A) True 
 B)False

Question 7

A(n)________ is a collection of metapopulations in a geographic region that has evolved one or more characteristics distinguishing it from other metapopulations due to isolation and subsequent divergence resulting from natural selection.

Accepted Answer

The answer of A(n)________ is a collection of metapopulations in...

Question 8

In a metapopulation,the probability of recolonization in a local population increases with

Accepted Answer

A) increasing patch size and increasing isolation. 
B) increasing patch size and decreasing isolation. 
C) decreasing patch size and increasing isolation. 
D) decreasing patch size and decreasing isolation. 
A) increasing patch size and increasing isolation. 
B) increasing patch size and decreasing isolation. 
C) decreasing patch size and increasing isolation. 
D) decreasing patch size and decreasing isolation.

Question 9

The rate of dispersal is highest in species that

Accepted Answer

A) occupy stable habitats. 
B) occupy isolated habitats. 
C) reproduce asexually. 
D) have high fecundity. 
A) occupy stable habitats. 
B) occupy isolated habitats. 
C) reproduce asexually. 
D) have high fecundity.

Question 10

Increasing isolation of habitat patches can be compensated for by decreasing the average patch size.

Accepted Answer

A) True 
 B)False

Question 11

In a typical metapopulation,

Accepted Answer

A) suitable habitat is relatively patchy rather than uniform. 
B) only the smaller subpopulations are at risk of extinction. 
C) the isolation of habitat patches prevents recolonization after local extinction. 
D) the dynamics of local populations are synchronized. 
A) suitable habitat is relatively patchy rather than uniform. 
B) only the smaller subpopulations are at risk of extinction. 
C) the isolation of habitat patches prevents recolonization after local extinction. 
D) the dynamics of local populations are synchronized.

Question 12

A source population

Accepted Answer

A) must be maintained by immigrants from a sink population. 
B) has a high rate of extinction. 
C) is usually located in small,isolated patches. 
D) maintains a positive growth rate. 
A) must be maintained by immigrants from a sink population. 
B) has a high rate of extinction. 
C) is usually located in small,isolated patches. 
D) maintains a positive growth rate.

Question 13

In a metapopulation,regional scale population dynamics are governed primarily by the interaction of local populations,specifically

Accepted Answer

A) birth and death rates. 
B) dispersal and colonization. 
C) predation and parasitism. 
D) stochastic processes. 
A) birth and death rates. 
B) dispersal and colonization. 
C) predation and parasitism. 
D) stochastic processes.

Question 14

The conversion of natural ecosystems to agricultural production tends to synchronize metapopulation dynamics.

Accepted Answer

A) True 
 B)False

Question 15

As the size of a habitat patch increases,

Accepted Answer

A) environmental heterogeneity decreases. 
B) the probability of extinction increases. 
C) the probability of colonization decreases. 
D) the impact of environmental stochasticity decreases. 
A) environmental heterogeneity decreases. 
B) the probability of extinction increases. 
C) the probability of colonization decreases. 
D) the impact of environmental stochasticity decreases.

Question 16

A(n)________ population maintains a positive growth rate,producing a surplus of individuals that disperses to other local populations.

Accepted Answer

The answer of A(n)________ population maintains a positive growth rate,producing...

Question 17

The rate of dispersal is greater in species occupying stable habitats than in those occupying temporary habitats.

Accepted Answer

A) True 
 B)False

Question 18

The persistence of metapopulations increases when

Accepted Answer

A) heterogeneity of habitat increases. 
B) isolation of local populations increases. 
C) environmental stochasticity increases. 
D) the size of local populations decreases. 
A) heterogeneity of habitat increases. 
B) isolation of local populations increases. 
C) environmental stochasticity increases. 
D) the size of local populations decreases.

Question 19

Which of the following is the correct hierarchy of the population concept?

Accepted Answer

A) local population < metapopulation < subspecies < species 
B) metapopulation < local population < subspecies < species 
C) local population < metapopulation < species < subspecies 
D) metapopulation < local population < species < subspecies 
A) local population < metapopulation < subspecies < species 
B) metapopulation < local population < subspecies < species 
C) local population < metapopulation < species < subspecies 
D) metapopulation < local population < species < subspecies

Question 20

A species encompasses the largest geographic range in the four hierarchical levels of spatial aggregation of populations.

Accepted Answer

A) True 
 B)False

Exam 12: Metapopulations

The ability of individuals to disperse among habitat patches is related to their degree of isolation.

In a metapopulation,the probability of extinction in a local population increases with

Metapopulation persistence is a dynamic balance between the ________ and recolonization of empty habitat patches.

The ________ effect refers to the increasing population size and decreasing risk of extinction that occurs with an increasing rate of immigration.

A(n)________ population cannot support positive population growth and is able to persist only when individuals immigrate from other local populations.

Dispersal of individuals among local populations does not occur within a metapopulation.

A(n)________ is a collection of metapopulations in a geographic region that has evolved one or more characteristics distinguishing it from other metapopulations due to isolation and subsequent divergence resulting from natural selection.

In a metapopulation,the probability of recolonization in a local population increases with

The rate of dispersal is highest in species that

Increasing isolation of habitat patches can be compensated for by decreasing the average patch size.

In a typical metapopulation,

A source population

In a metapopulation,regional scale population dynamics are governed primarily by the interaction of local populations,specifically

The conversion of natural ecosystems to agricultural production tends to synchronize metapopulation dynamics.

As the size of a habitat patch increases,

A(n)________ population maintains a positive growth rate,producing a surplus of individuals that disperses to other local populations.

The rate of dispersal is greater in species occupying stable habitats than in those occupying temporary habitats.

The persistence of metapopulations increases when

Which of the following is the correct hierarchy of the population concept?

A species encompasses the largest geographic range in the four hierarchical levels of spatial aggregation of populations.

The Nature of Ecology

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Species Interactions,population Dynamics,and Natural Selection

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Predation

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Factors Influencing the Structure of Communities

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Decomposition and Nutrient Cycling

Biogeochemical Cycles

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