Population Ecology

Card Set Information

Author:
Eloise
ID:
22754
Filename:
Population Ecology
Updated:
2010-06-08 23:55:44
Tags:
Population ecology biology
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Description:
Population Ecology
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  1. Give a definition of ecology
    Study of distribution and abundance of organisms and the changes through time
  2. What is distribution? Why do ecologists look at the dynmaics of distribution?
    • Distribution show where species are located
    • - climate change
    • - deforestation
    • - diseases
    • - extent of invasive species
  3. What is abundance? Why do ecologists look at the dynmaics of abundance?
    • How many organisms there are.
    • - extinctions
    • - changes in populations of exploited species
    • - determine if species are out of equilibrium
  4. What is density?
    How many organisms per unit
  5. What is dispersion? (three classifications)
    • Clumped:
    • ****
    • ***
    • Uniform:
    • ****
    • ****
    • Random:
    • * ** *
    • ** **
    • * * * *
  6. What is demography?
    • Age, sex and size structures of communities.
    • Important for predictions of future generations.

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