03bc108e-db2b-4cdb-ae2e-f5e88607daea https://ipt.gbif.org.nz/resource?r=nelson_water_catchments_pest_plants Nelson Waterworks Reserves Pest Plants 2013-2025 Bradley Myer Kaitiaki o te Ngahere Nelson Branch Manager

33 Vanguard Street Nelson Bays - Nelson 7010 NZ

0220648599 brad@kaitiakirestoration.co.nz https://kaitiakirestoration.co.nz/ Isaline Jadin Kaitiaki o te Ngahere GIS administrator

33 Vanguard Street Nelson Bays - Nelson 7010 NZ

isaline@kaitiakirestoration.co.nz Phillip Cochrane Nelson City Council Environmental Programmes Adviser

110 Trafalgar Street Nelson Bays - Nelson 7010 NZ

phillip.cochrane@ncc.govt.nz https://www.nelson.govt.nz/ Isaline Jadin Kaitiaki o te Ngahere GIS Administrator

33 Vanguard Street Nelson Bays - Nelson 7010 NZ

isaline@kaitiakirestoration.co.nz Bradley Myer Kaitiaki o te Ngahere Nelson Branch Manager

33 Vanguard Street Nelson Bays - Nelson 7010 NZ

0220648599 brad@kaitiakirestoration.co.nz https://kaitiakirestoration.co.nz/ Phillip Cochrane Nelson City Council Environmental Programmes Adviser

110 Trafalgar Street Nelson Bays - Nelson Nelson 7010 NZ

phillip.cochrane@ncc.govt.nz https://www.nelson.govt.nz/ Bradley Myer Kaitiaki o te Ngahere Branch Manager

33 Vanguard Street Nelson Bays - Nelson 7010 NZ

brad@kaitiakirestoration.co.nz author 2025-07-06 eng Invasive pest plant occurrence data collected by Kaitiaki o te Ngahere through their pest plant control efforts within the Nelson City Council Waterworks Reserves, specifically focusing on the Maitai and Roding catchments and the Mineral Belt. The dataset includes observations recorded during annual control and surveillance missions since 2013, as well as ad-hoc or incidental sightings. Occurrence Observation Pest Plant Nelson n/a Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction. Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 http://www.kaitiakirestoration.co.nz https://ipt.gbif.org.nz/archive.do?r=nelson_water_catchments_pest_plants Nelson City Council Waterworks Reserves 173.2451 173.420783 -41.278204 -41.393692 2013-05-27 2025-06-12 N/A family Commelinaceae family Balsaminaceae family Polygalaceae family Hypericaceae family Actinidiaceae family Lamiaceae family Araliaceae order Dipsacales family Myrtaceae phylum Tracheophyta family Scrophulariaceae order Asterales class Pinopsida family Aquifoliaceae order Aquifoliales family Sapindaceae family Rosaceae kingdom Plantae family Ranunculaceae order Ericales order Solanales order Alismatales family Oleaceae class Magnoliopsida order Fagales family Asparagaceae family Cupressaceae family Betulaceae family Solanaceae order Ranunculales order Laurales family Gesneriaceae family Pinaceae order Poales family Iridaceae order Malpighiales family Araceae order Asparagales family Polygonaceae order Myrtales family Ericaceae family Phrymaceae class Liliopsida family Poaceae family Fabaceae order Lamiales family Alstroemeriaceae order Caryophyllales family Caprifoliaceae family Lauraceae family Viburnaceae order Liliales family Berberidaceae family Pinus order Rosales order Fabales order Commelinales family Convolvulaceae family Apocynaceae order Sapindales order Pinales order Gentianales family Asteraceae family Salicaceae family Euphorbiaceae family Phytolaccaceae order Apiales family Passifloraceae The primary purpose of pest plant data collection efforts in the Nelson City Council Waterworks Reserves is to guide and inform the pest plant management program, whose ultimate goal is to protect and restore the natural ecosystems.Over the years, Kaitiaki o Ngahere's work has made steady and significant progress in reducing the impact of pest plants on the native forests of the Nelson Waterworks Reserves. Furthermore, ongoing data collection through surveys and control missions has contributed to a thorough knowledge and understanding of the ecological dynamics within the catchments. The Waterworks Reserves are two large water catchments located to the south and east of Nelson, dominated by native forest. These reserves include ecologically and geologically significant areas such as the Maitai and Roding catchments and the Dun Mountain Mineral Belt. The introduction of invasive pest plants has degraded these natural ecosystems, and without active management, their spread would lead to further ecological harm.Recognizing this threat, Nelson City Council (NCC) contracted Kaitiaki o Ngahere Ltd to implement pest plant control in the Waterworks Reserves. The program began in the Maitai and Roding river catchments in 2008 and has been ongoing for over 15 years.The management work is guided by the Forest Restoration Framework Programme, a best-practice model for long-term, outcome-focused restoration. It classifies management areas into distinct phases based on operational progress and the age class of pest plants present. The framework provides a clear and systematic approach for both site-led and weed-led projects, with a strong emphasis on accountability and transparency.Data collection has been a core and evolving component of the pest plant management program. Since at least 2013, consistent data gathered through surveillance and control missions has built a comprehensive spatial database that underpins strategic planning, targeted operations, and transparent reporting for Nelson City Council. Beyond supporting operational efficiency and accountability, this data has deepened the understanding of ecological dynamics within the reserves and enables monitoring of progress through the phases of the Forest Restoration Framework phases.Beyond its operational use, we seek to make this dataset available to a wider audience to support further research, ecological studies, and conservation initiatives. This work was made possible through the support of Nelson City Council, whose ongoing funding and collaboration have been instrumental in the management and monitoring of invasive plant species in the Maitai and Roding catchments and the Mineral Belt. The dataset will be updated at the end of each financial year, once all control and surveillance visits for that year have been completed. annually Isaline Jadin Kaitiaki o te Ngahere GIS Administrator

33 Vanguard Street Nelson Bays - Nelson 7010 NZ

isaline@kaitiakirestoration.co.nz Bradley Myer Kaitiaki o te Ngahere Nelson Branch Manager

33 Vanguard Street Nelson Bays - Nelson 7010 NZ

0220648599 brad@kaitiakirestoration.co.nz Phillip Cochrane Nelson City Council Environmental Programmes Adviser

110 Trafalgar Street Nelson Bays - Nelson 7010 NZ

phillip.cochrane@ncc.govt.nz https://www.nelson.govt.nz/ Bradley Meyer reviewer Isaline Jadin author The Nelson City Council Waterworks Reserves Pest Plant Management Programme, operating in the Maitai and Roding River catchments, is an ongoing project that began in 2008/2009. Its primary objective is to control invasive pest plants that threaten the integrity of the natural ecosystems within the reserves. The long-term goal of achieving a Forest Protection basis, where the area is free from the impacts of transformational pest plants. The programme follows the Forest Restoration Framework (FRF), a clear and systematic approach specifically designed by Kaitiaki o te Ngahere for site-led and weed-led restoration projects. This framework categorises management areas or pest plant populations into distinct phases based on operational progress and the life stage of pest plants present. Over more than 15 years, substantial progress has been achieved in reducing the impact of pest plants, with many areas advancing steadily through the FRF phases. Continuous data collection, combined with the team's extensive field knowledge, has built a deep understanding of the ecological dynamics within the catchments. The project is funded by the Nelson City Council (NCC), which contracts Kaitiaki o Ngahere Ltd to undertake pest plant control operations in the Waterworks Reserves. The managed area encompasses the Maitai and Roding catchments, located to the south and east of Nelson city. Together, they cover approximately 14,500 hectares (excluding roads, lakes, riverbeds and pine plantations). The area actively managed under the FRF has evolved over time but has consistently remained around 8730 ha in recent years. The core of the design is the Forest Restoration Framework (FRF), which categorises management units or pest plant populations into distinct phases, typically progressing from Initial Control (mature plants present), Follow-up Control (addressing regrowth and seedlings after initial control), and Seedbank Control (focused on remaining seedlings) to Forest Protection (surveillance for new incursions). Each phase involves different frequencies and intensities of control. The first phases typically require annual visits to prevent seedlings from reaching maturity. In Forest Protection phases, visit frequency varies based on reinvasion risk. FP1 involves annual checks in high-risk or hotspot areas, while FP8 calls for visits every eight years in remote, low-risk forested areas. Additionally, some low-frequency or high-impact species are subject to separate, targeted controls regardless of the area's overall phase. The approach uses a spatial polygon format for targeted work and performance monitoring. These polygons, commonly referred to as Management Units (MUs), delineate specific areas or pest plant populations. Each polygon is assigned a FRF phase according to their pest plant status. This spatial approach enables targeted operations and efficient resource allocation. A crucial part of the design is the systematic collection of data. Tracklogs and point data are collected daily by field staff using GPS-enabled mobile platforms. This data builds a spatial database used for efficient, targeted control and informed decision-making. During control visits, field teams aim to systematically cover the designated MU. This is achieved either by following pre-designed GPS gridlines or by spacing themselves at intervals that ensure adequate visual coverage, depending on the target species and the level of infestation. Any areas not fully covered during one visit are prioritized the following one. In surveillance phases, the focus shifts to detecting and managing new incursions, particularly in high-risk areas such as lightwells, waterways, track edges. 2025-05-26T07:36:44.293+00:00 dataset Myer B, Jadin I, Cochrane P (2025). Nelson City Council Pest Plant Occurrences in the Waterworks Reserves, 2013-2025. Version 1.1. Kaitiaki o te Ngahere. Occurrence dataset. https://ipt.gbif.org.nz/resource?r=nelson_water_catchments_pest_plants&v=1.1 https://ipt.gbif.org.nz/logo.do?r=nelson_water_catchments_pest_plants 03bc108e-db2b-4cdb-ae2e-f5e88607daea/v1.1.xml