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13 Cards in this Set
- Front
- Back
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What is limiting factors?
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Limiting Factors is the conditions that restrict the existence, popluations size, reproductive sccess, or distribution of organisms . Limiting factors restrict the numbers of organism that can exist.
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What influences an organism's limits of tolerance?
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Age, physical condition and stage in its life cycle may all influence an organism's limits of tolerance.
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What is tolerance?
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The range of factors under which an organism functions and survives is known as tolerance.
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What is primary successsion?
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The colonization of new sites by communites of organisms is primary succession.
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What is climax community?
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A climax community is a stable, mature community that undergoes little or no succession.
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What is succession?
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Succession is the replacement of one community by another as environmental condition change.
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An uncut lawn becomes a meadow and eventually a forest. It is an example of what?
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An uncut lawn becomes a meadow and eventually a forest. This process is an example of secondary succession.
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What is a stable ecosystem that develops due to succession called?
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a stable ecosystem that develops due to succession is called a climax community.
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What are the characterizes of climax communities?
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Climax Communities are characterized by complex food webs, many different species of organism and lit or no succession.
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What are possible causes of second succession?
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Fires, natural diasasters and human intervention are possible causes of second succession.
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What is the first organism to appear in an area undergoing succession?
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The first organism to appear in an area undergoing succession are known as pioneer species.
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What is tolerance?
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Tolerance is the ability of an organism to withstand changes in abiotic and biotic factors in an ecosystem.
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Under what environmetal conditions do the largest number of individuals in a population occur? Relate your answer to limiting factors and range of tolerance.
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Largest numbers occur when environmental factors are within the optimal ranges of the limits of tolerance. Numbers decline when environmental factors become limiting at the extremes of the range of tolerance.
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