Ecological Communities

You are on a town committee formed to determine the borders for a new local nature park. You explain that according to the theory of island biogeography, if the committee wishes to promote species richness it should

• II only

• III only

• I and II

• I, II, and III

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

The aesthetic value of an ecosystem provides

• a supporting service.

• a regulating service.

• an intrinsic value.

• a cultural service.

A(n) ______ in species diversity is associated with a(n) ________ in the functions an ecosystem provides.

• increase; decrease

• decrease; increase

• decrease; unobserved change

• decline; decline

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NGSS.HS-LS2-3

NGSS.HS-LS4-5

Human waste is often dumped in the ocean. Microbial organisms in marine ecosystems can break down organic waste into less harmful components. This is an example of

• a cultural service.

• an ecosystem provision.

• a regulating service.

• an intrinsic value.

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NGSS.MS-LS2-3

Which of the following would be considered an instrumental value of an ecosystem?

• ecological cycling of nutrients

• high decomposition rates, adding nutrients to the soil

• high net primary production

• use of lumber from a forest

Tags

NGSS.HS-ESS3-1

The movement of organisms from one place to another is called ______________________.

• dispersal

• transition

• spread

• drift

Which is NOT a factor in the theory of island biogeography?

• Islands farther from the continent have more species due to increased speciation

• dispersing species are more likely to find a large habitat

• islands can also be isolated areas within a continent

• larger habitats contain a larger range of environmental conditions

Which of the following is true about island biodiversity?

• Small islands are more likely to have more immigrated species

• Small islands have higher biodiversity than large islands

• Small islands have more resources and as a result may have more species

• Small islands have fewer resources and as a result may have fewer species

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What prediction is correct about island biogeography?

• Smaller islands have more resources, and will have more biodiversity

• Larger islands have more space for resources, but will have less biodiversity due to competition

• Islands closer to mainland will be more diverse due to more successful dispersal.

• There is more diversity far away from the mainland because some species fly.

The theory of island biogeography suggests that species richness is affected by which of the following factors?

I. island distance from mainland

II. how the island is formed

III. island size

• II only

• III only

• I and III

• II and III

Tags

NGSS.HS-LS2-2