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10 Cards in this Set
- Front
- Back
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Define: population
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several members of the same speciess within a defined geographic area.
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Define: population density
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number of individuals of a particular species per unit or volume.
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What are some sampling techniques?
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Quadrats, indirect counting, mark recapture
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what are the limits to accuracy?
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assumptians are made about the population being studied.
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Under what conditions might a population undergo exponential growth?
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Unlimited food, space, and water
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what is exponential growth?
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the population multiplies by a constant factor at constant time intervals.
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Give an example of a density-dependent limiting factor and an example of a density-independent limiting factor.
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Dependent- disease
Independent- fires, storms |
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When does Interspecific competition occour?
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When two or more species rely on the same limited resource, such as grass.
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What is competitive exclusion?
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When the competition results in one species succeeding over another.
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compare parasitism, mutualsim, and commensalism.
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Parasitism- parasite obtains its food at the expense of the host.
Mutualism- both organisms benifit from the close interaction. Commensalism- one benifits whille the other isn't helped nor harmed. |
