AP Environmental Science: Chapter 18

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19 Terms

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Threatened species (IUCN)

According to the International Union forConservation of Nature (IUCN), species that have a high risk of extinction in the future.

<p>According to the International Union forConservation of Nature (IUCN), species that have a high risk of extinction in the future.</p>
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Near-threatened species

Species that are very likely to become threatened in the future.

<p>Species that are very likely to become threatened in the future.</p>
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Least concern species

Species that are widespread and abundant.

<p>Species that are widespread and abundant.</p>
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Intrinsic value

Value independent of any benefit to humans.

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Instrumental value

Worth as an instrument or a tool that can be used to accomplish a goal.

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Provision

A good that humans can use directly.

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Native species

Species that live in their historical range, typically where they have lived for thousands or millions of years.

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Exotic species

A species living outside its historical range. Also known as Alien species.

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Alien species

A species living outside its historical range. Also known as Exotic species.

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Invasive species

A species that spreads rapidly across large areas.

<p>A species that spreads rapidly across large areas.</p>
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Lacey Act

A U.S. act that prohibits interstate shipping of all illegally harvested plants and animals.

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Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES)

A 1973 treaty formed to control the international trade of threatened plants and animals.

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Red List

A list of worldwide threatened species.

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Marine Mammal Protection Act

A 1972 U.S. act to protect declining populations of marine mammals.

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Endangered species

A species that is in danger of extinction within the foreseeable future throughout all or a significant portion of its range.

<p>A species that is in danger of extinction within the foreseeable future throughout all or a significant portion of its range.</p>
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Threatened species (U.S.)

According to U.S. legislation, any species that is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range.

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Convention on Biological Diversity

An international treaty to help protect biodiversity.

<p>An international treaty to help protect biodiversity.</p>
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Edge habitat

Habitat that occurs where two different communities come together, typically forming an abrupt transition, such as where a grassy field meets a forest.

<p>Habitat that occurs where two different communities come together, typically forming an abrupt transition, such as where a grassy field meets a forest.</p>
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Biosphere reserve

Protected area consisting of zones that vary in the amount of permissible human impact.

<p>Protected area consisting of zones that vary in the amount of permissible human impact.</p>