Question 1

In a plot of species richness as a function of the number of samples taken

Accepted Answer

A)  the asymptote represents species evenness. 
B)  additional samples after the asymptote will add little new information. 
C)  the slope of the line at the asymptote is a measure of beta diversity. 
D)  a bimodal curve indicates a high degree of endemism. 
E)  none of the above 
A)  the asymptote represents species evenness. 
B)  additional samples after the asymptote will add little new information. 
C)  the slope of the line at the asymptote is a measure of beta diversity. 
D)  a bimodal curve indicates a high degree of endemism. 
E)  none of the above

Question 2

In a graph of the number of species as a function of their geometric abundance class,

Accepted Answer

A)  rare species are found on the left tail of the curve. 
B)  rare species are found on the right tail of the curve. 
C)  species at the peak of the bell curve will be represented even in small samples. 
D)  a and c 
E)  b and c 
A)  rare species are found on the left tail of the curve. 
B)  rare species are found on the right tail of the curve. 
C)  species at the peak of the bell curve will be represented even in small samples. 
D)  a and c 
E)  b and c

Question 3

According to the intermediate disturbance hypothesis,

Accepted Answer

A)  species diversity is highest when disturbance is rare. 
B)  species cannot colonize after intermediate disturbance. 
C)  competition eliminates species when disturbance is rare. 
D)  competition eliminates species when disturbance is common. 
E)  none of the above 
A)  species diversity is highest when disturbance is rare. 
B)  species cannot colonize after intermediate disturbance. 
C)  competition eliminates species when disturbance is rare. 
D)  competition eliminates species when disturbance is common. 
E)  none of the above

Question 4

Define a species.

Accepted Answer

A species is a group

Question 5

Which of the following does not depend on chance events?

Accepted Answer

A)  the theory of island biogeography 
B)  the Court Jester model 
C)  the lottery model 
D)  keystone structures 
E)  none of the above 
A)  the theory of island biogeography 
B)  the Court Jester model 
C)  the lottery model 
D)  keystone structures 
E)  none of the above

Question 6

In the Court Jester model of diversity,

Accepted Answer

A)  disturbances are predictable. 
B)  abiotic conditions change unpredictably. 
C)  biotic interactions are unimportant. 
D)  the geographic area is irrelevant. 
E)  none of the above 
A)  disturbances are predictable. 
B)  abiotic conditions change unpredictably. 
C)  biotic interactions are unimportant. 
D)  the geographic area is irrelevant. 
E)  none of the above

Question 7

How do the measures of diversity, species richness and evenness, differ?

Accepted Answer

Species richness is a measure

Question 8

In coral reefs, the Lottery Model results in low alpha diversity but high gamma diversity.

Accepted Answer

A) True 
 B)False

Question 9

Why do large islands have lower extinction than small islands?

Accepted Answer

Large islands typically have m

Question 10

In the lottery model of species diversity,

Accepted Answer

A)  disturbance prevents species coexistence. 
B)  all species recolonize a site after disturbance. 
C)  after disturbance a subset of all possible species colonizes. 
D)  alpha and beta diversity are equal. 
E)  none of the above 
A)  disturbance prevents species coexistence. 
B)  all species recolonize a site after disturbance. 
C)  after disturbance a subset of all possible species colonizes. 
D)  alpha and beta diversity are equal. 
E)  none of the above

Question 11

On distant islands, the

Accepted Answer

A)  extinction rate is higher. 
B)  equilibrium number of species is higher. 
C)  immigration rate is lower. 
D)  value of z is higher. 
E)  none of the above 
A)  extinction rate is higher. 
B)  equilibrium number of species is higher. 
C)  immigration rate is lower. 
D)  value of z is higher. 
E)  none of the above

Question 12

Islands have fewer species than the nearby mainland because there has not been sufficient time for species to colonize them.

Accepted Answer

A) True 
 B)False

In a plot of species richness as a function of the number of samples taken

In a graph of the number of species as a function of their geometric abundance class,

According to the intermediate disturbance hypothesis,

Define a species.

Which of the following does not depend on chance events?

In the Court Jester model of diversity,

How do the measures of diversity, species richness and evenness, differ?

In coral reefs, the Lottery Model results in low alpha diversity but high gamma diversity.

Why do large islands have lower extinction than small islands?

In the lottery model of species diversity,

On distant islands, the

Islands have fewer species than the nearby mainland because there has not been sufficient time for species to colonize them.

Introduction to Ecology

Adaptation and Evolution

Adaptations to the Physical Environment

Terrestrial Communities

Fresh-water and Marine Communities

Behavioral Ecology

The Ecology of Intraspecific Variation

Demography

Population Regulation

Life History Strategies

Competition

Coevolution I Exploitative Interactions

Mutualism

The Structure of Communities

Ecological Succession

Energy Flow and Trophic Structure

Biogeochemical Cycles

Conservation Biology

Landscape Ecology

Human Global Ecology

Filters

Exam 16: Species Diversity

In a plot of species richness as a function of the number of samples taken

In a graph of the number of species as a function of their geometric abundance class,

According to the intermediate disturbance hypothesis,

Define a species.

Which of the following does not depend on chance events?

In the Court Jester model of diversity,

How do the measures of diversity, species richness and evenness, differ?

In coral reefs, the Lottery Model results in low alpha diversity but high gamma diversity.

Why do large islands have lower extinction than small islands?

In the lottery model of species diversity,

On distant islands, the

Islands have fewer species than the nearby mainland because there has not been sufficient time for species to colonize them.

Introduction to Ecology

Adaptation and Evolution

Adaptations to the Physical Environment

Terrestrial Communities

Fresh-water and Marine Communities

Behavioral Ecology

The Ecology of Intraspecific Variation

Demography

Population Regulation

Life History Strategies

Competition

Coevolution I Exploitative Interactions

Mutualism

The Structure of Communities

Ecological Succession

Energy Flow and Trophic Structure

Biogeochemical Cycles

Conservation Biology

Landscape Ecology

Human Global Ecology

Filters