Ninety-five percent of brown bears in the United States live in Alaska, and Lake Clark supports a healthy and stable population. The Alaskan National Interest Lands Conservation Act directs the park to protect habitat for brown bears among other fish and wildlife species. Therefore, park biologists survey coastal bear populations annually and are currently conducting a study to better understand dynamics of the interior population of brown bears. The superintendent uses this information to make management decisions that are in the best interest of bear populations.