Making Decisions about Wolves on Isle Royale

 

3 Isle Royale wolves 2015

Three Wolves, photo by Vucetich & Peterson

With only a handful of wolves left in Isle Royale National Park, the National Park Service is currently taking public comment on the management of wolves at Isle Royale. They write:

The NPS began this planning process by considering a broad range of potential management actions as part of determining how to manage the moose and wolf populations for at least the next 20 years. However, based on the public comments we received and additional internal deliberations, the NPS has determined that it will revise and narrow the scope of this EIS to focus on the question of whether to bring wolves to Isle Royale National Park in the near term, and if so, how to do so.

Although wolves have not always been part of the Isle Royale ecosystem, they have been present for more than 65 years, and have played a key role in the ecosystem, affecting the moose population and other species during that time. The average wolf population on the island over the past 65 years has been about 22, but there have been as many as 50 wolves on the island and as few as three. Over the past five years the population has declined steeply, which has given rise to the need to determine whether the NPS should bring additional wolves to the island. There were three wolves documented on the island as of March 2015 and only two wolves have been confirmed as of February 2016. At this time, natural recovery of the population is unlikely.

The potential absence of wolves raises concerns about possible effects to Isle Royale’s current ecosystem, including effects to both the moose population and Isle Royale’s forest/vegetation communities. The revised purpose of the plan, therefore, is to determine whether and how to bring wolves to Isle Royale National Park to function as the apex predator in the near term within a changing and dynamic island ecosystem.

The photo above from the 2014-2015 Annual Report from the Vucetich & Peterson Ecological Studies of Wolves on Isle Royale shows three wolves observed at winter study 2015. More on their website at isleroyalewolf.org and definitely follow Wolves and Moose of Isle Royale on Facebook for updates!

More wolves on Michigan in Pictures.

5 thoughts on “Making Decisions about Wolves on Isle Royale

  1. Thanks so much for including the link to the park service report and to the public comments page, along with the wonderful photo.

    Like

  2. Kind of a tough situation. It seems like we shouldn’t meddle in the wolf vs moose dynamic since nature has a way of restoring order. Originally it was caribou and lynx on Isle Royale. I am not sure if artificially restoring the wolf population will work or is the best choice.

    The sentimental part of me says that the wolves should be restored though.

    Like

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