Researchers report stable wolf numbers on remote Lake Superior island, but moose population is decreasing

Researchers conducting the annual survey of wildlife on Isle Royale, a remote island in Lake Superior, were forced to cut short their study due to unusually warm weather this winter. Despite the setback, they were able to gather data showing that the wolf population on the island remains stable.

Isle Royale, known for its pristine wilderness and unique ecosystem, offers scientists a rare opportunity to observe wolves and moose in their natural habitat without human interference. The annual survey, which has been ongoing since 1958, helps researchers track changes in the populations of these iconic species.

This year, the team of researchers from Michigan Tech University had to evacuate the island two weeks into their seven-week survey due to unsafe ice conditions. However, the data they collected before leaving revealed that the wolf population on the island stands at 30 animals, with the wolves forming four packs and one lone wolf observed.

On the other hand, the moose population on Isle Royale has declined by 14% from last year, with only a small percentage of moose observed being calves. The scientists attribute this decline to increased wolf predation, as well as past issues of overpopulation leading to starvation among the moose.

Overall, the researchers remain committed to monitoring the wildlife on Isle Royale and understanding the delicate balance between wolves and moose in this unique ecosystem.