Which of the following is true of the role of predators in relation to their pre

Question

Which of the following is true of the role of predators in relation to their prey? As the number of predators in an area increases, the number of prey captured declines due to competition among predators. As the number of predators in an area increases the population growth rate of the prey species will decline As the number of predators in an area increases, the birth rates increase As the number of predators in an area increases the number of prey killed decreases As the number of predators in an area increases, the prey mortality rate declines.

Explanation / Answer

B) As the number of predators in an area increases, the population growth rate of the prey will decline.

The Lotka Volterra equation which is used for predator and prey population growth can be used here.Predators basically regulate and control the growth of prey population by functioning as a source of density dependant mortality.

As the predator population increases, mortality rate of prey will increase .Eventually the rate of mortality would be equal to growth rate of prey population.As this continues the population growth for the prey will be zero.

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