16: Predator-Prey Dynamics (Part 1)

Reading Guide: Chapter 13

Predators and herbivores can limit the abundance of populations they consume

• Lizard predation on spiders

• The prickly pear cactus in Australia

Populations of consumers are consumed populations fluctuate in regular cycles

• Cyclic Fluctuations in the Populations

• Huffaker’s Predator–prey Lab Experiment

Population growth models

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• Lotka-Volterra models: A model of predator-prey interactions

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Equilibrium Isoclines for Prey and Predator Populations

• P = r/c

• N = m/ac

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