Waiheke Island is set to become the world's largest predator-free urban island under a bold new $11 million plan to rid the Hauraki Gulf Island of rats and stoats.
Millions of passengers visit the Auckland tourist destination each year and the head of Fullers ferry company says it will be extremely difficult to introduce biosecurity measures similar to those imposed on other pest-free islands which involve checking visitors' gear, ensuring food is in sealed bags and cleaning footwear.
Conservation Minister Eugenie Sage will today announce plans to make the island, which is already free of possums, free of other pests by 2025.
This would enable North Island kākā, kākāriki, kererū, tūī, korimako or bellbird, piwakawaka or fantail, tūturiwhatu or New Zealand dotterel, ōi or grey-faced petrel and kororā or little blue penguins to breed safely and increase in number on Waiheke, she said.
While there's not a lot of money involved, this is a big, ambitious policy. It will also be a field-test for the wider goal of a predator-free New Zealand, and how to prevent rats spreading from urban areas into protected ones. But even if its not ultimately successful, and they end up merely vastly reducing predator numbers on Waiheke or restricting them to urban spaces, it will still have huge conservation benefits. And they can then take the lessons they learn and apply them to Stewart Island or the Coromandel.