On a wild, remote island in Lake Superior called Isle Royale, gray wolves have lived and thrived for more than 60 years. In the forests on this island — which encompasses the majority of Michigan’s Isle Royale National Park — a wolf population that grew to almost 50 individuals once contributed to a biodiverse, healthy ecosystem.
In recent years, however, the number of wolves on Isle Royale has plummeted. In 2009, scientists from the Wolves and Moose of Isle Royale project — begun in 1958 and now the longest continuous study of a predator-prey system in the world — documented only 24 wolves living on the island. As of February 2014, that number had dwindled to nine — the second lowest total for the island ever recorded.
Some blame climate change for the decrease. Others say it is just the natural order of things for species to come and go in a particular area. But whatever the cause, the question for the future health of the island and the park is: should we intervene to save Isle Royale’s wolves?