An ecologist hypothesizes that predation by a particular owl species is the major factor controlling the population of a particular rabbit species. If this is the case, which of the following population effects could be expected in this rabbit-owl pair?

Question

Quizplus · Accepted Answer

If predation by owls is the major factor controlling the population of rabbits, then an increase in the owl population will lead to an increase in predation and a subsequent decrease in the rabbit population. Therefore, D is the correct answer. Choices A and B are incorrect because they suggest that changes in the rabbit population will have a direct effect on the owl population, which is not necessarily true. Choice C is also incorrect because it ignores the impact of predation by owls on the rabbit population.

An Ecologist Hypothesizes That Predation by a Particular Owl Species