The reintroduction of apex predators into an ecosystem where they have been absent for decades often leads to an initial period of instability characterized by increased predation on certain prey species. However, ecological studies reveal that within several decades, these ecosystems typically achieve a new, healthier equilibrium. This new state often features a more balanced population structure, greater biodiversity, and improved overall ecosystem resilience compared to the period when the apex predators were absent.
Correct: C
The passage describes a process where the reintroduction of apex predators initially causes instability but eventually leads to a 'new, healthier equilibrium' with 'greater biodiversity, and improved overall ecosystem resilience' compared to the period without them. Choice C directly summarizes this overarching narrative: the 'initial period of instability' represents the short-term disruptions, which are ultimately followed by 'healthier equilibrium,' 'greater biodiversity,' and 'improved overall ecosystem resilience,' indicating that the long-term benefits (ecological health) generally outweigh these initial disruptions. Choice B is true according to the passage but describes only the immediate effect, not the overall inference. Choice A uses the strong word 'inherently' which is not explicitly supported; the passage only discusses the *outcome of reintroduction*. Choice D suggests a mechanism for improved prey fitness, which is plausible, but the passage doesn't explicitly state this mechanism, only the outcome.