variety of life in an area; usually measured as the number of species that live in an area

the disappearance of a a species when the last of its members dies

a species in which the number of individuals falls so low that extinction is possible

Habitat Fragmentation

seperation of wilderness areas from each other; may cause problems for organisms that need large areas from each other; may cause problems for organisms that need large areas for food or mating

different environmental conditions that occur along the boundaries of an ecosystem

damage to a habitat by air, water, and land pollution

rain, snow, sleet, or fog with pH below 5.6; causes the deterioration of forests, lakes, statues, and buildings

layer of the atmosphere that helps to protect living organisms on Earth's surface from damaging doses of ultraviolet radiation from the sun

nonnative species in an area; may take over niches of native species in an area and eventually replace them

field of biology that studies methods and implements plans to protect biodiversity

those parts of the environment that are useful or necessary for living organisms

natural strips of land that allow the migration of organisms from one wilderness area to another

philosophy that promotes letting people use resources in wilderness areas in ways that will not damage the ecosystem

Reintroduction Programs

programs that release organisms into an area where their species once lived in hopes of reestablishing naturally reproducing populations

when members of a species are held by people in zoos or other conservation facilities

when the population of a species is likely to become endangered

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Biology

WCHS Biology Chapter 5

Word	Definition
Biodiversity	variety of life in an area; usually measured as the number of species that live in an area
Extinction	the disappearance of a a species when the last of its members dies
Endangered Species	a species in which the number of individuals falls so low that extinction is possible
Habitat Fragmentation	seperation of wilderness areas from each other; may cause problems for organisms that need large areas from each other; may cause problems for organisms that need large areas for food or mating
Edge Effect	different environmental conditions that occur along the boundaries of an ecosystem
Habitat Degradation	damage to a habitat by air, water, and land pollution
Acid Precipitation	rain, snow, sleet, or fog with pH below 5.6; causes the deterioration of forests, lakes, statues, and buildings
Ozone Layer	layer of the atmosphere that helps to protect living organisms on Earth's surface from damaging doses of ultraviolet radiation from the sun
Exotic Species	nonnative species in an area; may take over niches of native species in an area and eventually replace them
Conservation Biology	field of biology that studies methods and implements plans to protect biodiversity
Natural Resources	those parts of the environment that are useful or necessary for living organisms
Habitat Corridors	natural strips of land that allow the migration of organisms from one wilderness area to another
Sustainable Use	philosophy that promotes letting people use resources in wilderness areas in ways that will not damage the ecosystem
Reintroduction Programs	programs that release organisms into an area where their species once lived in hopes of reestablishing naturally reproducing populations
Captivity	when members of a species are held by people in zoos or other conservation facilities
Threatened Species	when the population of a species is likely to become endangered

Created by: dmoudy

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