Population ecology
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Population Ecology. Population. A group of individuals of a single species in a given area Density Dispersion. Clumped. Uniform. Random. Demography. The study of statistics that affect population size. Life Table. Survivorship Curve. Reproductive Table. Life Histories. Semelparity

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PowerPoint Slideshow about ' Population Ecology' - jescie-cooper


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Population
Population

  • A group of individuals of a single species in a given area

    • Density

    • Dispersion





Demography
Demography

  • The study of statistics that affect population size





Life histories
Life Histories

  • Semelparity

  • Iteroparity


Population growth
Population Growth

  • Exponential Growth

    • dN/dt = rmaxN

      • dN = change in number

      • dt = change in time

      • rmax = intrinsic growth rate

      • N = number of ind.


Population growth1
Population Growth

  • Logistic Growth

    • dN/dt = rmaxN (K-N)

      K

      • dN = change in number

      • dt = change in time

      • rmax = intrinsic growth rate

      • N = number of ind.

      • K = Carrying Capacity



Life histories1

r selected

Large number of offspring

No parental care

Small in size

Short lifespan

K selected

Small number of offspring

Large amounts of parental care

Large in size

Longer lifespan

Life Histories


Population limiting factors
Population Limiting Factors

  • Density Independent

    • Natural disasters

  • Density Dependent

    • Disease


Human population and zpg
Human Population and ZPG

  • Which type of growth do humans follow?

  • What is ZPG?


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