Which of the following is a key function of a Park Ranger?

Monitoring wildlife populations is indeed a key function of a Park Ranger. This role involves observing and assessing the populations of various species within a park, ensuring their health and sustainability as part of the ecosystem. Understanding wildlife populations helps Rangers enforce regulations, manage resources effectively, and contribute to conservation efforts.

While conducting scientific research is important, it is not the sole responsibility of Park Rangers, as their duties often encompass a broader range of tasks including visitor education, law enforcement, and habitat management. Performing maintenance on vehicles is related but does not represent a core function of a Park Ranger; they may oversee this as part of park operations but it is not their primary role. Teaching about local history is also a part of their job, but it represents only one aspect of the multifaceted responsibilities they hold, which includes education about nature and wildlife as well. Thus, monitoring wildlife populations encapsulates a central aspect of a Park Ranger's duties, emphasizing their role in protecting and preserving park ecosystems.