Wolves relocated to Isle Royale NP as a pack outcompeting individuals brought from mainland areas

Island life isn’t for everyone, nor, it seems, for every wolf.

One year into a federal effort to restock the wolf population in Isle Royale National Park in Michigan’s Lake Superior, a pack of eight relocated from a nearby island appears to be thriving, while four of 11 wolves brought from the mainland have died. Another wolf voluntarily departed last winter, returning to Minnesota over an ice bridge.

https://www.sciencemag.org/news/2019/12/relocated-island-wolves-outlasting-mainland-wolves-new-isle-royale-home