Exam 10: Community Ecology- What the Stork Says: a Bird Species in the Everglades Reveals the Intricacies of a Threatened Ecosystem- Biodiversity and Evolution

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What is the term given to the amount of primary productivity available for energy transfer up the food web-gross primary productivity or net primary productivity-and how do they differ?

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Question 1

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Net primary productivity is the amount of energy captured by photosynthesis that is stored in biomass and available to higher trophic levels-that is, it is the total amount of energy captured in photosynthesis, gross primary productivity, minus the energy used in maintaining the plant.

In terms of energy transfer, why can't trophic levels be in the shape of an inverted pyramid, that is, more quaternary consumers and less producers?

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Trophic levels cannot be in the shape of an inverted pyramid because there would not be enough energy transferred to support the ecosystem as a whole. Since most energy is not transferred between the levels and is instead lost as heat within and out of the organism, it would be impossible for quaternary consumers to produce enough energy to support the rest of the trophic levels. The only energy transfer between levels that is substantial is that from producers to primary consumers. The energy made by producers is what supports and fuels the entire ecosystem, so if they were the least abundant, they would also not produce enough energy for the other trophic levels and the ecosystem would collapse.

After decades of human-caused disturbance in the Everglades, the species diversity is __________ than/as it was before human involvement.

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Question 3

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Human activities in the Everglades has:

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Question 4

In a study comparing the trophic interactions in two streams, you discover that a Florida stream has 12 different fish species at the secondary consumer level, while an Ohio stream has only six. Compared to the Ohio stream, you hypothesize that the Florida stream shows________________.

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Question 5

Organisms living in an ecosystem that are particularly sensitive to changes in that ecosystem are known as________________.

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Question 6

In 2000, Congress enacted the _________, the most comprehensive ecological repair project to restore some of the natural flow of water through the Everglades.

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Question 7

The difference between a food chain and a food web is that ________________.

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Question 8

The United States has some of the strictest laws on the harvesting of timber. Timber companies, however, have realized that even though they are required to replant after harvesting, they can just plant pine trees. What problems does this cause, and how would you change the regulation?

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Question 9

A key goal of the Everglades restoration is to increase the amount of water flowing through the Everglades. This should lead to the restoration of the wood stork population, in part through the increase in the availability of nesting trees due to restoring the ____________ relationship between alligators and storks.

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Question 10

The concept of the trophic pyramid reflects ________________.

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Question 11

Professionals involved in a restoration ecology project would probably include all of the following except a _________.

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Question 12

______________ ecology is the science that deals with the repair of damage or disturbed ecosystems

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Question 13

Effective restoration plans must be responsive as conditions change and allow for experimentation. This type of restoration plan would be an example of ________________.

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Question 14

An example of secondary succession is ________________.

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Question 15

Gray squirrels and fox squirrels competing for the same resources are an example of ________________.

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Question 16

The American honeybee population has been decimated by colony collapse disorder. What impact will the removal of the American honeybee have?

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Question 17

The American alligator is considered a keystone species in the Everglades system because its presence leads to an increase in the ________________.

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Question 18

The process by which one community replaces another is known as ________________.

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Question 19

Why are invasive species so damaging to ecosystems?

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Question 20

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Exam 10: Community Ecology- What the Stork Says: a Bird Species in the Everglades Reveals the Intricacies of a Threatened Ecosystem- Biodiversity and Evolution

What is the term given to the amount of primary productivity available for energy transfer up the food web-gross primary productivity or net primary productivity-and how do they differ?

In terms of energy transfer, why can't trophic levels be in the shape of an inverted pyramid, that is, more quaternary consumers and less producers?

After decades of human-caused disturbance in the Everglades, the species diversity is __________ than/as it was before human involvement.

Human activities in the Everglades has:

In a study comparing the trophic interactions in two streams, you discover that a Florida stream has 12 different fish species at the secondary consumer level, while an Ohio stream has only six. Compared to the Ohio stream, you hypothesize that the Florida stream shows________________.

Organisms living in an ecosystem that are particularly sensitive to changes in that ecosystem are known as________________.

In 2000, Congress enacted the _________, the most comprehensive ecological repair project to restore some of the natural flow of water through the Everglades.

The difference between a food chain and a food web is that ________________.

The United States has some of the strictest laws on the harvesting of timber. Timber companies, however, have realized that even though they are required to replant after harvesting, they can just plant pine trees. What problems does this cause, and how would you change the regulation?

The concept of the trophic pyramid reflects ________________.

Professionals involved in a restoration ecology project would probably include all of the following except a _________.

______________ ecology is the science that deals with the repair of damage or disturbed ecosystems

Effective restoration plans must be responsive as conditions change and allow for experimentation. This type of restoration plan would be an example of ________________.

An example of secondary succession is ________________.

Gray squirrels and fox squirrels competing for the same resources are an example of ________________.

The American honeybee population has been decimated by colony collapse disorder. What impact will the removal of the American honeybee have?

The American alligator is considered a keystone species in the Everglades system because its presence leads to an increase in the ________________.

The process by which one community replaces another is known as ________________.

Why are invasive species so damaging to ecosystems?

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