Predator-Prey relationships

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Last updated 12:27 PM on 6/11/26
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6 Terms

1
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Image of predator-prey graph

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2
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Features of stage 1 of the predator-prey graph

  • An increase in prey population provides more food for predators

  • Allows more predators to survive & reproduce

  • Results in increase in PREDATOR population

3
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Features of stage 2 of the predator-prey graph

  • Increased predator population eats more prey organisms

  • Causes decline in PREY population

  • Death rate of prey population GREATER than its birth rate

4
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Features of stage 3 of the predator-prey graph

  • Reduced prey population can’t support large predator population

  • Intraspecific competition for food increases

  • Results in decrease in predator population size

5
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Features of stage 4 of the predator-prey graph

  • Reduced predator numbers result in less prey population being killed

  • More prey organisms survive & reproduce

  • Increases prey population

    • Cycle repeats

6
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What is the link between predator and prey population also affected by?

  • Presence of other predators

  • Seasonal changes in abiotic factors