The National Park Service announced it鈥檚 developing a plan to manage the wolf and moose populations in Michigan鈥檚 Isle Royale National Park, reported Wednesday.
The planned environmental impact statement is a response to the drop-off in gray wolf numbers. Since wolves first crossed the ice bridge from Lake Superior to the Isle Royale archipelago more than 65 years ago, the park has been home to about 20 of the animals, according to .
This year, only three have been documented. With fewer wolves, the park鈥檚 moose population has soared, which threatens to affect park resources, including vegetation, according to .
The NPS is considering a number of management possibilities, including introducing new wolves to Isle Royale now or waiting until the current pack dies off.
The public has until August 29 to comment on the plan on .