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chapter 5 vocab

biodiversity and conservation

TermDefinition
biodiversity number of different species living in a specific area
ecosystem biological community and all the nonliving facotors and affect it
extinction the disappearance of a species when the last of its members die
genetic diversity variety of inheritable characteristics or games in a n interbreeding population
species diversity in a biological community, the number and abundance of different species
background extinction gradual process of a species becoming extinct
biological magnification increasing concentration of toxic substances, such as tropic levels increase to food chains or food webs
edge effect any different environmental condition occurring along an ecosystem's boundaries
eutrophication water pollution from nitrogen rich and phosphorus rich substances flowing into waterways, causing algal overgrowth
habitat fragmenation habitat loss from separation of an ecosystem into small pieces of land
introduced species nonnative species deliberately or accidentally introduced into a new habitat
mass extinction a large scale dying out of a large percentage of all living organisms in an area within a short time
natural resource any material or organism in the biosphere, including water, soil, fuel, and plants and animals
overexploitation overuse of species with economic value-a factor in species extinction
biological augmentation technique of adding essential materials to a degraded ecosystem
bioremediation technique using living organisms to detoxify a polluted area
endemic found only in one specific geographic area
nonrenewable resource any natural resource available in limited amounts or replaced extremely slowly by natural process
renewable resource any resource replaced by natural processes more quickly than it is consumbed
sustainable use of resources at a rate that they can be replaced or recycled
Created by: mrcrossno
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