Question 1

The individuals that disperse as a response to high population density

Accepted Answer

A) are the oldest members of the population. 
B) rarely survive. 
C) include mostly females. 
D) are usually superior competitors. 
A) are the oldest members of the population. 
B) rarely survive. 
C) include mostly females. 
D) are usually superior competitors. B

Question 2

The part of an animal's home range that is defended against intruders is its ________.

Accepted Answer

territory

Question 3

Social organization

Accepted Answer

A) is restricted to invertebrates and rarely appears in vertebrate populations. 
B) becomes disruptive to normal social interaction. 
C) stabilizes relationships and minimizes fighting. 
D) is not believed to play a role in population regulation. 
A) is restricted to invertebrates and rarely appears in vertebrate populations. 
B) becomes disruptive to normal social interaction. 
C) stabilizes relationships and minimizes fighting. 
D) is not believed to play a role in population regulation. C

Question 4

Why are social organization and territoriality adaptive? How do human populations exhibit these two behaviours?

Accepted Answer

Social organization and territoriality a

Question 5

Fire is an example of a density-independent factor that affects a population.

Accepted Answer

A) True 
 B)False

Question 6

Contrast the density-dependent and density-independent mechanisms of population regulation.

Accepted Answer

Density-dependent and density-independen

Question 7

One hypothesis of population regulation in animals is that increased crowding and ________ cause stress.

Accepted Answer

The answer of One hypothesis of population regulation in animals...

Question 8

Dispersal plays an active part in regulating population size.

Accepted Answer

A) True 
 B)False

Question 9

________ competition occurs when an organism actively defends a site and/or resource and denies access to other individuals.

Accepted Answer

A) Scramble 
B) Contest 
C) Exploitation 
D) Interference 
A) Scramble 
B) Contest 
C) Exploitation 
D) Interference

Question 10

When experimental plants (Atriplex prostrata)were grown at high densities

Accepted Answer

A) individual growth rates increased. 
B) the proportion of resources allocated to leaf production increased. 
C) individual plant weight increased. 
D) net photosynthetic rate increased. 
A) individual growth rates increased. 
B) the proportion of resources allocated to leaf production increased. 
C) individual plant weight increased. 
D) net photosynthetic rate increased.

Question 11

Define home range versus territory.

Accepted Answer

The home range is the area an

Question 12

Contest competition results in some individuals in the population getting more resources than others.

Accepted Answer

A) True 
 B)False

Question 13

Briefly explain the concept of 'new ecology'.

Accepted Answer

This is the current

Question 14

Which statement about stress is incorrect?

Accepted Answer

A) Stress increases as population density increases. 
B) Stress may trigger the release of specific chemical signals or pheromones. 
C) Stress can stimulate growth and increase the rate of reproduction. 
D) Stress may result in increased vulnerability to disease. 
A) Stress increases as population density increases. 
B) Stress may trigger the release of specific chemical signals or pheromones. 
C) Stress can stimulate growth and increase the rate of reproduction. 
D) Stress may result in increased vulnerability to disease.

Question 15

What is competition? Compare and contrast scramble and contest competition.

Accepted Answer

Competition is a situation in which indi

Question 16

Compare and contrast space capture in plants and territoriality in animals.

Accepted Answer

For both, defending an area for exclusiv

Question 17

Most natural populations grow in size indefinitely.

Accepted Answer

A) True 
 B)False

Question 18

Individual organisms spaced out more than is expected from a random occupancy of suitable habitat is an alternate (and appropriate)definition of ________.

Accepted Answer

The answer of Individual organisms spaced out more than is...

Question 19

Discuss the impact of high-density conditions on non-modular organisms using amphibians as examples.

Accepted Answer

Non-modular organisms are less plastic t

Question 20

High-density conditions caused no noticeable shift in the behaviour of experimental tadpoles (Rana sylvatica).

Accepted Answer

A) True 
 B)False

Exam 11: Intraspecific Population Regulation

The individuals that disperse as a response to high population density

The part of an animal's home range that is defended against intruders is its ________.

Social organization

Why are social organization and territoriality adaptive? How do human populations exhibit these two behaviours?

Fire is an example of a density-independent factor that affects a population.

Contrast the density-dependent and density-independent mechanisms of population regulation.

One hypothesis of population regulation in animals is that increased crowding and ________ cause stress.

Dispersal plays an active part in regulating population size.

________ competition occurs when an organism actively defends a site and/or resource and denies access to other individuals.

When experimental plants (Atriplex prostrata)were grown at high densities

Define home range versus territory.

Contest competition results in some individuals in the population getting more resources than others.

Briefly explain the concept of 'new ecology'.

Which statement about stress is incorrect?

What is competition? Compare and contrast scramble and contest competition.

Compare and contrast space capture in plants and territoriality in animals.

Most natural populations grow in size indefinitely.

Individual organisms spaced out more than is expected from a random occupancy of suitable habitat is an alternate (and appropriate)definition of ________.

Discuss the impact of high-density conditions on non-modular organisms using amphibians as examples.

High-density conditions caused no noticeable shift in the behaviour of experimental tadpoles (Rana sylvatica).

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Ecological Genetics: Adaptation and Natural Selection

Plant Adaptations to the Environment

Animal Adaptations to the Environment

Life History Patterns

Properties of Populations

Population Growth

Metapopulations

Interspecific Competition

Predation

Parasitism and Mutualism

Community Structure

Community Dynamics

Landscape Ecology

Systems Ecology

Ecosystem Energetic

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Population Growth, Resource Use, and Sustainability

Conservation Ecology

Global Climate Change

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