look up "carrying capacity" in the ecology section of your text. as prey population increases, so do predators. but predators will eat all the prey (limiting the prey population size), and begin to go hungry and die off.
Predators limit the growth of prey because they regulate mortality. In the same way the availability of the preys determines the available food. A greater number of prey more population of predators.If there is an increase in the number of predators, a decrease in prey occurs
