Question 1

The impact of Argentine ants on species diversity in the South African fynbos is most dramatic following fires.

Accepted Answer

A) True 
 B)False

Question 2

A Predator and its prey interact __________, but if the predator affects another species through this interaction, ecologists describe it as a(n) ___________ interaction.

Accepted Answer

A)  strongly; inefficient 
B)  directly; variable 
C)  weakly; diffuse 
D)  indirectly; keystone 
E)  directly; indirect 
A)  strongly; inefficient 
B)  directly; variable 
C)  weakly; diffuse 
D)  indirectly; keystone 
E)  directly; indirect

Question 3

Which statement best sums up the relationship between density of the herbivorous snail Littorina and the diversity of algae in its habitat?

Accepted Answer

A)  highest diversity when Littorina are abundant, in all habitats 
B)  highest diversity when Littorina are rare, in all habitats 
C)  highest diversity when Littorina densities are intermediate, in all habitats 
D)  highest diversity in tidepools when Littorina are rare, but in emergent habitats when Littorina densities are intermediate 
E)  highest diversity in tidepools when Littorina densities are intermediate, but in tidepools when Littorina are rare 
A)  highest diversity when Littorina are abundant, in all habitats 
B)  highest diversity when Littorina are rare, in all habitats 
C)  highest diversity when Littorina densities are intermediate, in all habitats 
D)  highest diversity in tidepools when Littorina are rare, but in emergent habitats when Littorina densities are intermediate 
E)  highest diversity in tidepools when Littorina densities are intermediate, but in tidepools when Littorina are rare

Question 4

In Robert Paine's studies of the Washington intertidal community, which organism proved to be a keystone species?

Accepted Answer

A)  the whelk Thais 
B)  acorn barnacles 
C)  chitons 
D)  the starfish Pisaster 
E)  limpets 
A)  the whelk Thais 
B)  acorn barnacles 
C)  chitons 
D)  the starfish Pisaster 
E)  limpets

The impact of Argentine ants on species diversity in the South African fynbos is most dramatic following fires.

A Predator and its prey interact , but if the predator affects another species through this interaction, ecologists describe it as a(n) _ interaction.

Which statement best sums up the relationship between density of the herbivorous snail Littorina and the diversity of algae in its habitat?

In Robert Paine's studies of the Washington intertidal community, which organism proved to be a keystone species?

Introduction to Ecology Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Temperature Relations

Water Relations

Energy and Nutrient Relations

Socail Relations

Population Distribution and Abundance

Population Dynamics

Population Growth

Life Histories

Competition

Exploitative Interactions Predation, Herbivory, Parasitism, and Disease

Mutualism

Species Abundance and Diversity

Primary Production and Energy Flow

Nutrient Cycling and Retention

Succession and Stability

Landscape Ecology

Geographic Ecology

Global Ecology

Filters

Exam 17: Species Interactions and Community Structure

The impact of Argentine ants on species diversity in the South African fynbos is most dramatic following fires.

A Predator and its prey interact __________, but if the predator affects another species through this interaction, ecologists describe it as a(n) ___________ interaction.

Which statement best sums up the relationship between density of the herbivorous snail Littorina and the diversity of algae in its habitat?

In Robert Paine's studies of the Washington intertidal community, which organism proved to be a keystone species?

Introduction to Ecology Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Temperature Relations

Water Relations

Energy and Nutrient Relations

Socail Relations

Population Distribution and Abundance

Population Dynamics

Population Growth

Life Histories

Competition

Exploitative Interactions Predation, Herbivory, Parasitism, and Disease

Mutualism

Species Abundance and Diversity

Primary Production and Energy Flow

Nutrient Cycling and Retention

Succession and Stability

Landscape Ecology

Geographic Ecology

Global Ecology

Filters

A Predator and its prey interact , but if the predator affects another species through this interaction, ecologists describe it as a(n) _ interaction.