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Population and Community Ecology
Population Demography
Biology Textbooks Boundless Biology Population and Community Ecology Population Demography
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Biology
Concept Version 6
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The Study of Population Dynamics

Survivorship curves show the distribution of individuals in a population according to age

Survivorship curves show the distribution of individuals in a population according to age

Humans and most mammals have a Type I survivorship curve because death primarily occurs in the older years. Birds have a Type II survivorship curve, as death at any age is equally probable. Trees have a Type III survivorship curve because very few survive the younger years, but after a certain age, individuals are much more likely to survive.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "OpenStax College, Population Demography. October 17, 2013."
    http://cnx.org/content/m44864/latest/Figure_45_01_05.jpg OpenStax CNX CC BY 3.0.

Related Terms

  • mortality rate
  • survivorship curve
  • life table
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