Tuesday, September 15, 2009

Exponential population growth in an ideal, unlimited environment

Population: a group of individuals of the same species living in the same area


Exponential population growth: population growth under ideal conditions


Carrying Capacity: the maximum population size that a certain environment can support at a particular time.



Biotic and Abiotic influences on populations

Density Dependent: death rises; population density rises. (i.e. competition resources)

Density Independent: death rate doesn’t change with population density (i.e. natural disasters)

Abiotic Factors:
  • temperature
  • water - freshwater vs. saltwater
  • sunlight
  • wind
  • soil and rocks - nutrients

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