Article

Restoration

Thousands of people up and down the country volunteer their time to plant thousands of native trees and shrubs. Reserves have been created on islands, such as Kapiti and Tiritiri Matangi, where all pest species have been eradicated. Many inland pest-free ‘islands’ have been formed by erecting predator proof-fences. Some of these islands are in the middle of our cities, such as Riccarton Bush in Christchurch and Zealandia in Wellington.

Lower lake with valve tower - Zealandia ecosanctuary, Wellington

Zealandia Te Māra a Tāne

Zealandia Te Māra a Tāne in the heart of Wellington City was conceived in 1995 and opened in 2000 after the erection of an 8.6 kilometre long predator proof-fence. The sanctuary has a 500 year plan to restore the reserve to how it would have appeared before humans arrived in New Zealand. It is home to many endangered species of birds, plants and animals such as saddleback, tuatara, giant wētā and little spotted kiwi.

Rights: Judi Lapsley Miller, CC-BY-4.0

New Zealand is fortunate to have been human-free until relatively recently – 1000 years is not long compared to 40,000 years in Australia and 100,000 years in Europe! We are also fortunate to have realised the value of our native bush before it was all gone. Now enthusiastic people are creating ‘corridors’ of bush so that our native species can have a better chance of survival. By connecting up remaining pockets of bush with these corridors, it allows many of our native animals to move between the pockets, increasing biodiversity and improving the gene pool.

Riccarton Bush predator-proof fence

Riccarton Bush

Riccarton Bush is a small patch of native forest in the city of Christchurch. It is protected by a predator-proof fence that keeps out the rats, cats, stoats and possums that would otherwise destroy this ‘island’ habitat.

Rights: Lara Bieleski

Trees also improve the quality of our water by acting as filters, and their roots can provide habitats for aquatic animals. Trees improve soil quality by preventing erosion and loss of topsoil. They can improve our air quality by filtering out particulates and releasing oxygen. A recent study showed that growing up in a tree-lined street reduced your risk of developing asthma. Plants also absorb CO2 from the atmosphere and slow down climate change. Trees are now being planted to offset our carbon emissions because of this ability to act as ‘carbon sinks

Wherever you live in Aotearoa New Zealand, there will be a replanting scheme near you where people volunteer their time and energy to improve our environment. Why not start one at your school or in a local park?

Published:09 September 2008