Native forest and wetland reserves

NURTURING OUR NATIVE FOREST AND WETLAND RESERVES

City Forests has voluntarily designated 2,047 ha of its land as permanent reserve sites in and around its plantation forest areas.  This represents 11.9% of the working forest area that City Forests manages.

These reserves have a wide variety of conservation values, including small areas protected for unique and nationally significant soil types, regenerating and mature native forest areas, wetlands and significant water catchments protected for rare native fish species. These areas range in size from a few hectares to several hundred hectares. Some areas have important conservation values, while others are of relatively low value.

There are large stands of manuka forest (Leptospermum scoparium) in the City Forests estate and its value includes nurturing large bee populations and supporting local manuka honey production. Manuka honey is used worldwide because of its health-giving properties and powerful antibacterial qualities.

Monitoring

The company has a management plan for these reserves and it employs ecologists to survey the sites (and potential sites) to assess their value and assist us to develop appropriate management and monitoring protocols. City Forests has had a reserves' classification system developed for the reserve areas by Wildland Consultants, an ecological consultancy organisation.  The system is designed to comply with the principles and criteria of FSC.  Classification has been progressively applied to all reserve areas as fine level survey analysis becomes available for them.  This will help us to prioritise our management effort and expenditure towards the most important conservation values and issues present.

City Forests regularly checks designated reserve areas for any management issues that need addressing.  During 2017/18 five native reserves were assessed with no issues to report. All areas are free of wilding trees and invasive weeds. On going reserve monitoring will continue across all City Forest reserves.

During 2014 an ecological survey of the major reserve areas in the company's Kaitangata block was completed. In early 2018 harvesting in the area was completed, a re-assessment of the native reserves concluded they had been left in excellent condition with minimal damage from the harvesting operations.

In late 2017 an update of the Waipori fine level ecological assessment was completed by Wildlands Ltd., and a comprehensive report was produced.  We are working our way through the updated information and recommendations in that report and these will be progressively built into our forest description and management plans.

Research

During 2015 and 2016 the company contributed to a Bush Robin/kakaruai monitoring project being run by the University of Otago's Zoology Department in the company's Silverpeaks forest. 

City Forests has also co-funded an investigation of New Zealand Falcon population dynamics in our forests for the last two years, a third season is planned for 2018/19. The major finding of this study was that plantation forestry land; both cutover and standing forests, provide excellent habitat for NZ falcons to nest, fledge and thrive.

We continue to explore options for enhancing Galaxias (native fish) habitat in our forests. The main area of focus has been Shepherds Creek in our Waipori forest where Galaxias eldonihave been identified but are threatened by the presence of Brown Trout. A long-term management plan is being developed by Water Ways Consulting for the removal of Brown Trout and the restoration of Galaxia habitat in Shepherds Creek, several phases of the project have already been completed which included a fish survey in December 2017.

Wilding control

The company is also investing heavily in wilding tree removal operations in the Waipori wetlands reserves, including in an adjacent Tussock reserve under DOC management. During 2017, a large area was further cleared of Pinus contorta, with more work planned for the latter part of 2018.  In and around other forests a wilding management plan has been developed and regular monitoring is taking place.

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