Answer :

Final answer:

Wolves likely came to inhabit Isle Royale by crossing the frozen waters of Lake Superior, using an ice bridge during winter months. They established themselves as top predators on the island, influencing the local ecosystem significantly. This incredible journey and establishment reflect important aspects of predator-prey dynamics in ecology.


Explanation:

Introduction to Wolves on Isle Royale

The history of how wolves came to inhabit Isle Royale is a fascinating story of migration. Wolves are believed to have crossed the frozen waters of Lake Superior, which during the winter months becomes a solid ice bridge, allowing these animals to travel from the mainland of Minnesota or Canada to the island.

Migration Pathways

Isle Royale lies approximately 15 miles from the nearest mainland. The most accepted theory is that wolves first arrived on Isle Royale around the early 1940s. They likely took advantage of the natural conditions such as ice cover during the winter months, making it feasible for them to traverse the distance.

Ecological Impact

Once they arrived, wolves established themselves as a top predator on the island, greatly influencing the local ecosystem. Their presence contributed to controlling the population of moose, which in turn affected the vegetation patterns across Isle Royale.


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