Predator-Prey Population Oscillation

Part of Competition Adaptations ยท Section 7 of 15

DiagramUnit: EcologyGCSE
Painted predator-prey oscillation diagram showing snowshoe hare (green curve, large amplitude) and Canadian lynx (red curve, smaller amplitude, time-lagged) population sizes over 20 years. Small painted hare and lynx silhouettes float above each curve peak. Four numbered annotations: prey peak, predator rises, prey crashes, predator crashes. Two painted parchment panels at the bottom: 'Why it oscillates' with 3 bullets (more prey โ†’ more food, too many predators โ†’ prey crashes, few prey โ†’ predators starve) and 'Exam tip' (predator peak LAGS prey peak โ€” don't reverse this!).

Figure: Predator peak LAGS prey peak โ€” more food โ†’ predators reproduce more โ†’ too many predators โ†’ prey crashes โ†’ predators starve.

This diagram covers Predator-Prey Population Oscillation within Competition Adaptations for GCSE Biology. Topic 2: Competition Adaptations It is section 7 of 15 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Practice questions for Competition Adaptations

Which of the following do plants compete for?

  • A. Light, water, space and minerals
  • B. Light, water and territory
  • C. Food, water and mates
  • D. Oxygen, water and shelter
1 markfoundation

Explain how the spines of a cactus are an adaptation to its desert environment.

2 marksstandard

Quick recall flashcards

What do plants compete for?
Light, water, nutrients (mineral ions), and space.
Why are adaptations important?
They increase an organism's chance of survival and reproduction in its environment.

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