3.3 Survivorship Curve

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5 Terms

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survivorship curve

line thats shows survival rate of a cohort

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A Cohort

group of same-aged individuals

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Type 1

  • mostly K-selected

  • High survivorship in early + mid years and rapid decrease in late years

Ex. most mammals

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Type 2

  • in between r and k

  • steadily decreasing survivorship throughout life

Ex. rodents

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Type 3

  • mostly r-selected

  • High mortality early in life and few make it to mid and late years

Ex/ insects, fish, and plants