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19 Cards in this Set
- Front
- Back
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Succesion
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the change in numjber and kinds of organisms in an area leading to a stble community
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Pioneer community
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the first community to develop in a successional equence
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Climax community
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a community that is the stable end product of succession
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Seral stage
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any successional community between pioneer and climax community
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Sere
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the entire sequence of communities in a successional sequence
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Primary succession
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succession in an area previously unoccupied by a community
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hydrosere
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sere from aquatic toward mesic terrestrial
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Xerosere
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sere rom rock substrate toward mesic
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secondary succession
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succession in an area following destruction of the previous community
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cyclic succession
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sere that eventually returns to the initial community
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Allogenic factors
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weathering, sedimentation
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Autogenic factors
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immigration, growth, reactions, coactions
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Facilitation model
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(+) - early species make enviroment more suitbale for the later species
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inhibition model
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(-) - early species make the environment less suittable for the later species
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Tolerance model
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(0) - no effect; most efficient specialists eventually prevail
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Monoclimax hypothesis
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the climax is determined by the regional climate
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Polyclimax concept
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edaphic climax, topographic climax, fire climax
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Climax pattern concept
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a gernal climax community that changes according to soil, slope and other habitat factors
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Transient climax
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seasonal pond
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