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14 Cards in this Set
- Front
- Back
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Coevolution
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Occurs when two or more species evolve in responce to each other.
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Symbolism
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Is a close, long term association between two or more species.
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Parasitism
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The relationship between a parasite and its host.
One benefits; one doesnt. |
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Mutalism
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A symblic relationship in which all participating species benefit.
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Cpmmensalism
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Is an ecological relationship in which one species benefits and the other is not obviously effected.
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Fundamental Niche
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The total niche than an organism could potentially use within an ecosystem.
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Competition
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Situations in which two or more organisms attempt to use the same scace resource.
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Realized Niche
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The part of a fundamental niche that an organism actually occupies as a direct result of competition.
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Competitive Exclusion
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The process in which one species is ot competed and dies out within an ecosystem.
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Succession
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The regular progession of species replacement in a developing ecosystem.
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Primary Succession
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When succession takes place on land where there was no previous growth.
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Secondary Succession
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When succesion occurs in areas where there has been previous growth, such as in abondoned fields or forest clearings.
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Stability
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The ability of an ecosystme to resist change in the face of disturbance
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Keystone Species
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A species whose niche affecs many others in the ecosystem and that cannot be readily replaced if lost.
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