Independent introductions of hedgehogs to the North and South Island of New Zealand

According to the most recent (2005) compendium on the history of the European hedgehog (Erinaceus europaeus) in New Zealand, this small insectivorous mammal was first brought from Europe to the South Island in the 19th century. This introduction has been presumed to be the source of hedgehogs that subsequently spread to the North Island. This view was informed by the absence of hedgehogs in the North Island throughout the 19th century and no evidence of direct shipments of hedgehogs from overseas to the North Island.