Wolf Population Stabilizes, Moose Decline Slows
Though unseasonably warm weather forced Michigan Tech researchers to end their fieldwork early, excellent visibility and settled conditions aided them in completing the 65th annual Isle Royale Winter Study. Survey estimates indicated 30 wolves and 840 moose, with the majority of both populations concentrated on the east end of Isle Royale National Park.
The annual winter study is a major component of the Isle Royale Wolf-Moose project. The longest-running predator-prey study in the world, the project is led by Sarah Hoy, John Vucetich and Rolf Peterson (CFRES). It has taken place every year since 1958 with the exception of 2021, when it was canceled due to COVID-19.
Key takeaways from the new winter study, released this week, include evidence of at least three wolf litters and four territorial packs. There was a significant drop in adult moose mortality rates attributed to starvation while death rates due to predation were up.
For more on the report, read the full story at Michigan Tech News.