Question 1

In which type of scenario would genetic drift have a more significant effect?

Accepted Answer

A)  A population with 1,0000 individuals and an effective population size of 300 
B)  A population with 1,0000 individuals and an effective population size of 30 
C)  A population with 100 individuals and an effective population size of 30 
D)  A population with 10,000 individuals and an effective population size of 300 
A)  A population with 1,0000 individuals and an effective population size of 300 
B)  A population with 1,0000 individuals and an effective population size of 30 
C)  A population with 100 individuals and an effective population size of 30 
D)  A population with 10,000 individuals and an effective population size of 300

Question 2

The fossil record tells us

Accepted Answer

A)  That extinction is a rare biological event 
B)  That more species are alive today than have ever lived in history 
C)  That birds are likely going extinct more slowly today than historically 
D)  That more than 99% of species that have ever lived are now extinct 
A)  That extinction is a rare biological event 
B)  That more species are alive today than have ever lived in history 
C)  That birds are likely going extinct more slowly today than historically 
D)  That more than 99% of species that have ever lived are now extinct

Question 3

Which of the following explains why conservation biologists would be particularly concerned about the effects of introduced species on an island?

Accepted Answer

A)  Conservation biologists are not concerned with introduced species on islands 
B)  Because islands tend to have high amounts of endemism 
C)  Because island populations will always be genetically homogenized 
D)  Conservation biologists are concerned with intense intraspecific competition on islands 
A)  Conservation biologists are not concerned with introduced species on islands 
B)  Because islands tend to have high amounts of endemism 
C)  Because island populations will always be genetically homogenized 
D)  Conservation biologists are concerned with intense intraspecific competition on islands

Question 4

According to research published by Beaumont and Hughes (2002),butterflies in Australia would suffer reduced distributions in the future if temperatures increased by 0.8 to 1.4 degrees Celsius by 2050.Which of the following is one reason why?

Accepted Answer

A)  They are specialists and the plants they specialize on may be displaced from one another 
B)  All butterfly species will experience reduced population sizes 
C)  Coevolving relationships with ants will be disrupted 
D)  None of the above 
A)  They are specialists and the plants they specialize on may be displaced from one another 
B)  All butterfly species will experience reduced population sizes 
C)  Coevolving relationships with ants will be disrupted 
D)  None of the above

Question 5

What umbrella term is used to describe the various actions taken to slow down or reverse the loss of species and biodiversity?

Accepted Answer

A)  Preservation 
B)  Conservation 
C)  Restoration 
D)  Remediation 
A)  Preservation 
B)  Conservation 
C)  Restoration 
D)  Remediation

Question 6

You have studied a bird species in Costa Rica and there is a greater than 20% probability that it will go extinct in approximately 4 generations.Should this species be classified,and if so with what status?

Accepted Answer

A)  No, it should not be classified 
B)  Yes, it should be classified as near threatened 
C)  Yes, it should be classified as critically endangered 
D)  Yes, it should be classified as endangered 
A)  No, it should not be classified 
B)  Yes, it should be classified as near threatened 
C)  Yes, it should be classified as critically endangered 
D)  Yes, it should be classified as endangered

Question 7

Which extinction threat is gaining in importance as likely cause of extinction?

Accepted Answer

A)  Invasive species 
B)  Loss of habitat 
C)  Over fishing 
D)  Hunting 
A)  Invasive species 
B)  Loss of habitat 
C)  Over fishing 
D)  Hunting

Question 8

Describe the relationship between population size and probability of extinction for island bird species.

Accepted Answer

A)  It is a linear relationship; the probability of extinction is constant regardless of the number of pairs 
B)  There is no relationship 
C)  It is an exponential relationship; the probability of extinction increases much more when populations fall below 100 pairs 
D)  The relationship is hump-shaped; probability of extinction increases when number of pairs is high or low. 
A)  It is a linear relationship; the probability of extinction is constant regardless of the number of pairs 
B)  There is no relationship 
C)  It is an exponential relationship; the probability of extinction increases much more when populations fall below 100 pairs 
D)  The relationship is hump-shaped; probability of extinction increases when number of pairs is high or low.

Question 9

The term biodiversity can include?

Accepted Answer

A)  Species richness 
B)  Genetic diversity 
C)  Community types 
D)  All of the above 
A)  Species richness 
B)  Genetic diversity 
C)  Community types 
D)  All of the above

Question 10

Which biome is currently experiencing the greatest rate of destruction?

Accepted Answer

A)  Temperate 
B)  Dry tropics 
C)  Humid tropics 
D)  Boreal 
A)  Temperate 
B)  Dry tropics 
C)  Humid tropics 
D)  Boreal

Question 11

Which country,according to Figure 13.10c,has had the highest percent gross forest cover loss?

Accepted Answer

A)  Brazil 
B)  Canada 
C)  USA 
D)  Russia 
A)  Brazil 
B)  Canada 
C)  USA 
D)  Russia

In which type of scenario would genetic drift have a more significant effect?

The fossil record tells us

Which of the following explains why conservation biologists would be particularly concerned about the effects of introduced species on an island?

According to research published by Beaumont and Hughes (2002),butterflies in Australia would suffer reduced distributions in the future if temperatures increased by 0.8 to 1.4 degrees Celsius by 2050.Which of the following is one reason why?

What umbrella term is used to describe the various actions taken to slow down or reverse the loss of species and biodiversity?

You have studied a bird species in Costa Rica and there is a greater than 20% probability that it will go extinct in approximately 4 generations.Should this species be classified,and if so with what status?

Which extinction threat is gaining in importance as likely cause of extinction?

Describe the relationship between population size and probability of extinction for island bird species.

The term biodiversity can include?

Which biome is currently experiencing the greatest rate of destruction?

Which country,according to Figure 13.10c,has had the highest percent gross forest cover loss?

Ecology and How to Do It

Ecology’s Evolutionary Backdrop

Physical Conditions and the Availability of Resources

Climate and the World’s Biomes

Birth, Death and Movement

Interspecific Competition

Predation, Grazing and Disease

Molecular and Evolutionary Ecology

From Populations to Communities

Patterns in Species Richness

The Flux of Energy and Matter Through Ecosystems

Global Biogeochemical Cycles and Their Alteration by Humans

The Ecology of Human Population Growth, Disease, and Food Supply

Filters

Exam 13: Conservation Ecology

In which type of scenario would genetic drift have a more significant effect?

The fossil record tells us

Which of the following explains why conservation biologists would be particularly concerned about the effects of introduced species on an island?

According to research published by Beaumont and Hughes (2002),butterflies in Australia would suffer reduced distributions in the future if temperatures increased by 0.8 to 1.4 degrees Celsius by 2050.Which of the following is one reason why?

What umbrella term is used to describe the various actions taken to slow down or reverse the loss of species and biodiversity?

You have studied a bird species in Costa Rica and there is a greater than 20% probability that it will go extinct in approximately 4 generations.Should this species be classified,and if so with what status?

Which extinction threat is gaining in importance as likely cause of extinction?

Describe the relationship between population size and probability of extinction for island bird species.

The term biodiversity can include?

Which biome is currently experiencing the greatest rate of destruction?

Which country,according to Figure 13.10c,has had the highest percent gross forest cover loss?

Ecology and How to Do It

Ecology’s Evolutionary Backdrop

Physical Conditions and the Availability of Resources

Climate and the World’s Biomes

Birth, Death and Movement

Interspecific Competition

Predation, Grazing and Disease

Molecular and Evolutionary Ecology

From Populations to Communities

Patterns in Species Richness

The Flux of Energy and Matter Through Ecosystems

Global Biogeochemical Cycles and Their Alteration by Humans

The Ecology of Human Population Growth, Disease, and Food Supply

Filters