24.4 - Predator-Prey Relationships

Question 1

What is stage one of a predator prey graph?

Answer 1

• increase in prey population = more food for predators
• More food = more survival and reproduction
• Increase in predator population

Question 2

What is stage two of a predator prey graph?

Answer 2

• Increased predator population eats more prey
• prey declines
• death rate of prey > birth rate

Question 3

What is stage three of a predator prey graph?

Answer 3

• Reduced prey population can’t sustain large predator population
• Intraspecific competition increases for food
• Predator pop declines

Question 4

What is stage four of a predator prey graph?

Answer 4

• Reduced predator numbers = less prey killed
• Prey population survive + reproduce
• Cycle starts again