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Cards In This Set
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Species
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Organisms that
1) Resemble in appearance2) Resemble in behaviour & chemisry3) Resemble in genetic makeup4) Has the ability to interbreed to produce fertile offspring |
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Population size
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# individuals (N) in a given area/volume (S)
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Population density
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N (# individuals) / S (unit Area volume)
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Crude density
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N (# individuals) / S (entire area)
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Ecological density
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N (# individuals) / S (usable area)
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Dispersion
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Pattern of distribution in specific area.
Include clumped; uniform, random |
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Quadrat
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Slicing up frames into rectangular sections, finding N in 1 section, multiplying it by total # of sections
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Mark-recapture method
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1. Set trap2. Mark all animals trapped3. After good wait, reset trap4. Use proportion of animals marked to total animals to estimate population (m/n = M/N)
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Carrying capacity
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Max # organisms sustainable by available resources
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Population dynamics
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Study of change in population
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Fecundity
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Birth potential
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Open population
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Population affected not only by births and deaths, but also IMMIGRATION and EMIGRATION
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Closed population
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Population affected only by BIRTHS and DEATHS
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Biotic potential
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Max rate of growth of population (under ideal conditions)
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Growth models
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Mathematical models that happen to describe population growth, including:
1) Geometric (seasonal; resemble flight of stairs)2) Exponential (no limit)3) Logistic (with limit) |
