These graphs show the dependency of the predators on their prey and the availability of the prey. The predator population (wolves) will increase if their is enough prey(rabbits) available to feed them. Even if there were enough rabbits for each wolf, the rabbits ill adapt to the hunting techniques to maintain and increase their population . The number of wolves will then decline and they will have to adapt new hunting techniques to be able to survive and reproduce.
In both of the graphs above, the number of wolves (predator) increases when they catch or kill the rabbits, as the amount of wolves increases the number of rabbits decrease. And as he amount of rabbits decrease the number of wolves decline, allowing the rabbits to repopulate.
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