Playtime over for the moose on Isle Royale, as the wolves are coming back

The National Park Service confirmed they'll add 20-30 wolves to the island by 2023.
Publish date:

There will be no more fun and games for the moose of Isle Royale on Lake Superior, as they're about to share the land once again with an apex predator.

The National Park Service confirmed on Thursday that it will be introducing 20-30 wolves to the isolated national park that is technically in Michigan, though is closest to the Minnesota mainland.

The island used to have a wolf population of around 50 in the 1980s, but they were descended from a small pack and inbreeding led to plummeting numbers to the point that only two remain today.

Meanwhile the population of their prey, the moose, has tripled over the last decade to around 1,500, thanks to the decline of the predator.

The NPS said that the historical average number of wolves on the island is between 20-30, which is why that many will be re-introduced to it over the next 3-5 years.

"This decision is an important step forward in attempting to obtain a proper predator-prey dynamic within the Isle Royale National Park ecosystem," said Midwest Regional Director Cam Sholly.

"We appreciate the intense public involvement throughout this process and look forward to continued outreach as this decision is implemented."

Today's Top Stories

– 17 more teams qualify for the MN baseball tourney.

– 4 Minnesotans win the Stanley cup with the Capitals.

– NEW: Follow Bring Me The News on Google Newsstand.

Why intervention is needed

The park system said that it was unlikely that the wolves would repopulate the island themselves because of the previous inbreeding issues, as well as the unreliability of ice bridge formation in the winter that allows wild wolves to travel to the island.

If no intervention was taken, the NPS previously said that eventually moose would eat themselves out of forage (and all the other animals out of forage), which could "send ripples through the park's ecosystem."

The National Park Service usually takes a hands-off management approach to wilderness areas. In fact, it's part of the 1964 Wilderness Act, which defines wilderness as a place that "generally appears to have been affected primarily by the forces of nature, with the imprint of man's work substantially unnoticeable."

As such, there has been some opposition to the plan by those who think the NPS is acting in conflict with the act, but supporters have praised the decision for securing the health of the ecosystem.

Next Up

Justin Fields

5 quarterbacks the Vikings could select in the 2021 NFL Draft

Will the Vikings get a successor for Kirk Cousins?

Chet Holmgren

ESPN to televise Chet Holmgren's college decision on Monday

Holmgren has narrowed his list of suitors to seven schools.

Minneapolis City Hall

Minneapolis to create unarmed traffic enforcement division

It wouldn't be part of the police department.

Kirill Kaprizov

Wild score 5 unanswered goals to sweep Sharks

The Sharks scored first but the Wild stormed back in a 5-2 victory.

Rocco Baldelli

Twins-Angels postponed Saturday and Sunday due to COVID

Outfielder Kyle Garlick and one other player tested positive on Saturday.


Curfew set at 11 p.m. in Brooklyn Center, Champlin Saturday

More protests are expected in Brooklyn Center.

Image from iOS (1)

Victim killed in multi-vehicle crash that closed Hwy. 62 ID'd as woman, 23

The four-vehicle crash closed the eastbound highway for several hours.

protest, Daunte Wright, Brooklyn Center

Photographer reports being maced and punched by police, other journalists detained

It came just hours after a court order prevented law enforcement from using force against the news media.


Wolf dies after being captured for release on Isle Royale

The Park Service is trying to introduce more wolves to the island.

One of the wolves relocated to Isle Royale has died

Four wolves were moved to the island in Lake Superior by the National Park Service.

The National Park Service wants to save the wolves on Isle Royale

There are only two highly-inbred wolves left on the island.

'First ever' footage shows wolves hunting freshwater fish in MN

It's a significant discovery by a group of university and national park researchers.

Forget the ferry, trips from MN to Isle Royale by seaplane may be coming

Commercial seaplane service from Grand Marais is being considered.

Forget the ferry, trips from MN to Isle Royale by seaplane may be coming

Commercial seaplane service from Grand Marais is being considered.

Moose licking car salt

Video: A close encounter with a Boundary Waters moose

The magnificent beast had a hankering for salt lick.