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Ecology Chapter 4
Analyzing Geographic Distributions
6
Biology
Undergraduate 2
12/13/2011

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Term
control
Definition
in an experimental desing a control treatment or plot in which nothing is changed so that it serves as a baseline for comparison with the experimental treatments to which something typically is added or subtracted
Term
dispersal
Definition
the movement of individuals away from their place of birth or hatching or seed production into a new habitat or area to survive and reproduce
Term
habitat selection
Definition
the behavioral actions of organsims (typically animals) in choosing the areas in which they live and breed
Term
Liebig's Law of the Minimum
Definition
the rate of any biological process is limited by the factor in least amount realtive to requirements, so there is a single limiting factor
Term
physiological ecology
Definition
the subdiscipline of ecology that studies the biochemical, physical, and mechanical adaptations and limitations of plants and animals to their physical and chemical environments
Term
Shelford's Law of Tolerance
Definition
the geographical distribution of a species will be controlled by that environmental factor for which the organism has the narrowest range of tolerance  
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