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6 Cards in this Set
- Front
- Back
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ecotones
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a boundary between two types of ecological communitees
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edge effects
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a change in species compostion, physical conditions, or other ecological factors at the boundary between two ecosystems
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environmental indicators
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organisms or physical factors that serve as a guage for enviormental changes. AKA bio indicators
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equilibrium communities
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a communitee subject to periodic disrubtion, usually by fire, that prevents it from reaching a climax stage. AKA disclimax communitee
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preditor
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an organism that feed directly on other organisms in order to servive;live-feeders, such as herbivores and carnnivores
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plankton
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primarly microscopic organisms that occupy the upper water layer in both fresh water and marine ecosystems
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