Question 1

The study of the spatial arrangement of elements in communities and ecosystems is known as

Accepted Answer

A)  landscape ecology.
B)  community ecology.
C)  population ecology.
D)  ecosystem ecology.
E)  global ecology.F) None of the above
G) All of the above

Question 2

Endangered species

Accepted Answer

A)  will become extinct in the next 50 years.
B)  are likely to be in danger of extinction in the future.
C)  are those species found only in zoos,aquaria,and museums.
D)  are mainly found in the tropics.
E)  are in danger of extinction throughout all or most of their rangE.F) C) and D)
G) B) and D)

Question 3

The range of the grizzly bear in the 48 contiguous United States is now less than 1% of what it was in 1800.What has been proposed to help maintain genetic variation in the remaining populations of this species?

Accepted Answer

A)  protected corridors between all of the remaining populations
B)  regular exchange of bears between isolated populations
C)  preserving more small patches of forest
D)  cloning of the most genetically diverse remaining females
E)  establishment of new parks in Colorado and New MexicoF) All of the above
G) B) and D)

Question 4

The wild Tasmanian devil population has decreased 70% since 1996 due to a contagious form of cancer known as Devil Facial Tumor Disease.Researchers have found several individuals that show partial resistance to the cancer.Attempts to breed these individuals and preserve their DNA would fall under what level of biological diversity?

Accepted Answer

A)  Ecosystem diversity
B)  Disease diversity
C)  Species diversity
D)  Genetic diversityE) All of the above
F) C) and D)

Question 5

You are conducting a long term study of ecosystem functioning in a freshwater lake.You and your field assistants gather data for many biotic and abiotic factors,including species diversity,water and benthic quality,and turbidity.Over the ten years of your study,you find that the abundance of water lilies is correlated with several other factors.When water toxicity and turbidity are high and water pH is abnormally low,water lilies quickly become scarce,followed by periods where fish,amphibians,and water birds are also scarce or absent.In years with very high water nutrient levels,water lilies quickly become abundant,followed by years where wading birds are scarce.From these data,you conclude that water lilies are __________.

Accepted Answer

A)  an umbrella species.
B)  a keystone species.
C)  an endemic species.
D)  a flagship species.
E)  an indicator species.F) A) and C)
G) C) and D)

Question 6

Both rare and common species may have economic value in terms of developing medical treatments.

Accepted Answer

A) True 
 B)False

Question 7

The Florida panther,as a symbol of Florida's conservation campaign,serves as a(n)

Accepted Answer

A)  indicator species.
B)  flagship species.
C)  endemic species.
D)  keystone species.
E)  umbrella species.F) A) and D)
G) B) and C)

Question 8

Megadiversity countries are those countries which

Accepted Answer

A)  spend the most money on conservation.
B)  have the greatest number of species.
C)  contain the highest genetic diversity.
D)  have the largest number of endemic plant species.
E)  have the highest ecosystem diversity.F) A) and D)
G) A) and C)

Question 9

Geographic biodiversity "hot spots"

Accepted Answer

A)  have the highest vascular plant species richness and  ≥\ge≥ 3 unique ecosystems.
B)  have the greatest number of species that have lost >50% of their original range.
C)  contain  ≥\ge≥ 1500 vascular plant species and have lost >50% of their original range.
D)  have  ≥\ge≥ 1500 endemic plant species and have lost  ≥\ge≥ 70% of the original habitat. E) None of the above
F) A) and C)

Question 10

As you walk between classes on your college campus,you notice squirrels busily burying acorns.You realize you are witnessing what ecosystem service?

Accepted Answer

A)  Pest control
B)  Pollination
C)  Biological control
D)  Erosion control
E)  Seed dispersalF) A) and D)
G) B) and C)

Question 11

The introduction of avian malaria to Hawaii was responsible for the extinction of almost half of Hawaii's native birds.

Accepted Answer

A) True 
 B)False

Question 12

Island biogeography predicts that a single large area would have higher biodiversity than several small areas.However,in practice,several small areas could have an advantage for what reason(s) ? Check all that apply.

Accepted Answer

A)   Facilitating the spread of disease
B)   Decreasing extinction risk from natural disasters
C)   Being less expensive
D)   Containing more habitat types
E)   Minimizing edge effectsF) A) and E)
G) B) and E)

Question 13

How can the preservation of biological diversity be justified?
Check all that apply.

Accepted Answer

A)   ethical grounds.
B)   supernatural responsibility.
C)   economic value.
D)   ecological value.
E)   exploitative value.F) B) and C)
G) All of the above

Question 14

Introduced species become invasive when they

Accepted Answer

A)  compete with native species without expanding their range.
B)  move from temperate to tropical settings.
C)  expand their range and outcompete native species.
D)  lead to a cost for humans.
E)  fill an empty ecological nichE.F) C) and D)
G) B) and D)

Question 15

What shape park is preferable for minimizing edge effects?

Accepted Answer

A)  square
B)  oblong
C)  linear
D)  jagged
E)  rectangularF) None of the above
G) B) and D)

Question 16

Field experiments by David Tilman showed that increased plant diversity reduced the occurrence of invasive species.

Accepted Answer

A) True 
 B)False

Question 17

According to the diversity-stability hypothesis:

Accepted Answer

A)  Genetic diversity is the most important part of ecosystem stability.
B)  A loss of any species from an ecosystem leads to an approximately equal decline in stability.
C)  The loss of a few species from an ecosystem does significantly affect ecosystem functioning.
D)  Losing even a few species from an ecosystem causes a drastic decline in ecosystem stability.
E)  Every species has an important role in ecosystem function,but we cannot predict the effect of species loss.F) None of the above
G) A) and D)

Question 18

Biological diversity is composed of what three levels?

Accepted Answer

A)  trophic diversity,ecosystem diversity,and species diversity.
B)  ecosystem diversity,species diversity,and process diversity.
C)  genetic diversity,function diversity,and process diversity.
D)  genetic diversity,species diversity,and ecosystem diversity.E) C) and D)
F) None of the above

Question 19

In an effort to protect and breed the California condor,a rescue program

Accepted Answer

A)  captured the few remaining wild birds to breed them in captivity.
B)  cloned several female birds in captivity.
C)  captured the remaining wild birds and distributed them for display at zoos worldwide.
D)  developed new genetic engineering techniques.
E)  was able to restore habitat in much of southern California.F) A) and B)
G) B) and C)

Question 20

What are the problems with cloning as a conservation strategy?
Check all that apply.

Accepted Answer

A)   It often requires finding appropriate surrogate mothers.
B)   Populations of cloned individuals grow too quickly.
C)   It requires detailed knowledge of species' reproductive biology.
D)   It increases genetic diversity of a species beyond natural levels.
E)   The root causes of species loss are not addressed by cloning methods.F) B) and C)
G) B) and E)

Exam 47: Biodiversity and Conservation Biology

Biological diversity is composed of what three levels?

Correct Answer
verified

Introduced species become invasive when they

Correct Answer
verified

Both rare and common species may have economic value in terms of developing medical treatments.

Correct Answer
verified

Correct Answer
verified

What shape park is preferable for minimizing edge effects?

Correct Answer
verified

The Florida panther,as a symbol of Florida's conservation campaign,serves as a(n)

Correct Answer
verified

What are the problems with cloning as a conservation strategy? Check all that apply.

Correct Answer
verified

Geographic biodiversity "hot spots"

Correct Answer
verified

The introduction of avian malaria to Hawaii was responsible for the extinction of almost half of Hawaii's native birds.

Correct Answer
verified

The study of the spatial arrangement of elements in communities and ecosystems is known as

Correct Answer
verified

Endangered species

Correct Answer
verified

The range of the grizzly bear in the 48 contiguous United States is now less than 1% of what it was in 1800.What has been proposed to help maintain genetic variation in the remaining populations of this species?

Correct Answer
verified

Megadiversity countries are those countries which

Correct Answer
verified

Island biogeography predicts that a single large area would have higher biodiversity than several small areas.However,in practice,several small areas could have an advantage for what reason(s) ? Check all that apply.

Correct Answer
verified

In an effort to protect and breed the California condor,a rescue program

Correct Answer
verified

Correct Answer
verified

According to the diversity-stability hypothesis:

Correct Answer
verified

As you walk between classes on your college campus,you notice squirrels busily burying acorns.You realize you are witnessing what ecosystem service?

Correct Answer
verified

Field experiments by David Tilman showed that increased plant diversity reduced the occurrence of invasive species.

Correct Answer
verified

How can the preservation of biological diversity be justified? Check all that apply.

Correct Answer
verified

Exam 47: Biodiversity and Conservation Biology

Biological diversity is composed of what three levels?

Correct AnswerverifiedShow Answer

Introduced species become invasive when they

Correct AnswerverifiedShow Answer

Both rare and common species may have economic value in terms of developing medical treatments.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What shape park is preferable for minimizing edge effects?

Correct AnswerverifiedShow Answer

The Florida panther,as a symbol of Florida's conservation campaign,serves as a(n)

Correct AnswerverifiedShow Answer

What are the problems with cloning as a conservation strategy? Check all that apply.

Correct AnswerverifiedShow Answer

Geographic biodiversity "hot spots"

Correct AnswerverifiedShow Answer

The introduction of avian malaria to Hawaii was responsible for the extinction of almost half of Hawaii's native birds.

Correct AnswerverifiedShow Answer

The study of the spatial arrangement of elements in communities and ecosystems is known as

Correct AnswerverifiedShow Answer

Endangered species

Correct AnswerverifiedShow Answer

The range of the grizzly bear in the 48 contiguous United States is now less than 1% of what it was in 1800.What has been proposed to help maintain genetic variation in the remaining populations of this species?

Correct AnswerverifiedShow Answer

Megadiversity countries are those countries which

Correct AnswerverifiedShow Answer

Island biogeography predicts that a single large area would have higher biodiversity than several small areas.However,in practice,several small areas could have an advantage for what reason(s) ? Check all that apply.

Correct AnswerverifiedShow Answer

In an effort to protect and breed the California condor,a rescue program

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

According to the diversity-stability hypothesis:

Correct AnswerverifiedShow Answer

As you walk between classes on your college campus,you notice squirrels busily burying acorns.You realize you are witnessing what ecosystem service?

Correct AnswerverifiedShow Answer

Field experiments by David Tilman showed that increased plant diversity reduced the occurrence of invasive species.

Correct AnswerverifiedShow Answer

How can the preservation of biological diversity be justified? Check all that apply.

Correct AnswerverifiedShow Answer

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