Nelson City Council Waterworks Reserves Browse Monitoring Data, 2013-2023

Occurrence Observation
最新版本 published by Kaitiaki o te Ngahere on 8月 28, 2025 Kaitiaki o te Ngahere
首頁:
http://www.kaitiakirestoration.co.nz
發布日期:
2025年8月28日
Published by:
Kaitiaki o te Ngahere
授權條款:
CC0 1.0

下載最新版本的 Darwin Core Archive (DwC-A) 資源，或資源詮釋資料的 EML 或 RTF 文字檔。

DwC-A資料集 下載 11,136 紀錄 在 English 中 (711 KB) - 更新頻率: 有可能更新，但不確知何時
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說明

Plant occurrence data collected by Kaitiaki o te Ngahere during Browse Monitoring Surveys conducted within the Nelson City Council Waterworks Reserves, specifically in the Maitai and Roding catchments. The dataset comprises observations recorded during surveys carried out in 2013, 2015, 2018, and 2023. These observations were collected in 1.4 m-radius plots along randomly located transects and include species presence and richness up to 200 cm in height, as well as establishment status (native/introduced) and a Browse Index for individuals taller than 30 cm.

資料紀錄

此資源出現紀錄的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 11,136 筆紀錄。

亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。

Occurrence (核心)
11136
ExtendedMeasurementOrFact 
11136

此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。

版本

以下的表格只顯示可公開存取資源的已發布版本。

如何引用

研究者應依照以下指示引用此資源。:

Myer B, Jadin I, Cochrane P (2025). Nelson City Council Waterworks Reserves Browse Monitoring Data, 2013-2023. Version 1.1. Kaitiaki o te Ngahere. Occurrence dataset. https://ipt.gbif.org.nz/resource?r=nelson_water_catchments_browse_monitoring_data&v=1.1

權利

研究者應尊重以下權利聲明。:

此資料的發布者及權利單位為 Kaitiaki o te Ngahere。 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.

GBIF 註冊

此資源已向GBIF註冊，並指定以下之GBIF UUID: 4836d32f-8d9a-4a6b-ad54-2b16bf2d7e77。  Kaitiaki o te Ngahere 發佈此資源，並經由GBIF New Zealand同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence; Observation; Plant; Browse Index; Water catchments; Nelson; Observation

聯絡資訊

Bradley Myer
  • 出處 ●
  • 連絡人
  • Nelson Branch Manager
Kaitiaki o te Ngahere
  • 33 Vanguard Street
7010 Nelson Bays - Nelson
NZ
  • 0220648599
Isaline Jadin
  • 元數據提供者 ●
  • 連絡人
  • GIS administrator
Kaitiaki o te Ngahere
  • 33 Vanguard Street
7010 Nelson Bays - Nelson
NZ
Phillip Cochrane
  • 出處 ●
  • 連絡人
  • Environmental Programmes Adviser
Nelson City Council
  • 110 Trafalgar Street
7010 Nelson Bays - Nelson
NZ
Isaline Jadin
  • 元數據提供者 ●
  • 連絡人
  • GIS Administrator
Kaitiaki o te Ngahere
  • 33 Vanguard Street
7010 Nelson Bays - Nelson
NZ

地理涵蓋範圍

Nelson City Council Waterworks Reserves

界定座標範圍 緯度南界 經度西界 [-41.373, 173.258], 緯度北界 經度東界 [-41.284, 173.413]

分類群涵蓋範圍

無相關描述

Kingdom Plantae
Phylum Tracheophyta
Class Pinopsida, Magnoliopsida, Polypodiopsida, Lycopodiopsida
Order Canellales, Dipsacales, Cucurbitales, Asterales, Ericales, Fagales, Laurales, Ranunculales, Poales, Malpighiales, Myrtales, Asparagales, Polypodiales, Hymenophyllales, Malvales, Boraginales, Lamiales, Caryophyllales, Liliales, Lycopodiales, Osmundales, Rosales, Fabales, Saxifragales, Brassicales, Sapindales, Gentianales, Pinales, Psilotales, Oxalidales, Cyatheales, Apiales
Family Coriariaceae, Monimiaceae, Araliaceae, Pittosporaceae, Myrtaceae, Thymelaeaceae, Winteraceae, Blechnaceae, Plantaginaceae, Sapindaceae, Rosaceae, Ranunculaceae, Cyperaceae, Dennstaedtiaceae, Polypodiaceae, Cunoniaceae, Elaeocarpaceae, Asparagaceae, Pinaceae, Cruciferae, Pteridaceae, Polygonaceae, Ericaceae, Compositae, Rubiaceae, Dryopteridaceae, Rousseaceae, Juncaceae, Fabaceae, Violaceae, Urticaceae, Psilotaceae, Thelypteridaceae, Nothofagaceae, Boraginaceae, Caprifoliaceae, Podocarpaceae, Griseliniaceae, Asphodelaceae, Haloragaceae, Dicksoniaceae, Asteliaceae, Lycopodiaceae, Osmundaceae, Hymenophyllaceae, Primulaceae, Aspleniaceae, Apocynaceae, Gramineae, Cyatheaceae, Pennantiaceae, Ripogonaceae, Asteraceae

時間涵蓋範圍

起始日期 / 結束日期 2013-05-23 / 2013-07-31
起始日期 / 結束日期 2015-07-08 / 2015-08-06
起始日期 / 結束日期 2018-06-27 / 2018-08-22
起始日期 / 結束日期 2023-07-17 / 2023-08-04

計畫資料

The Nelson City Council commissioned Kaitiaki o te Ngahere to conduct browse monitoring surveys in the Maitai and Roding Waterworks Reserves, which together provide Nelson City’s domestic water supply. The project was initially established to provide short- to medium-term vegetation outcome monitoring for the Council’s goat control programme. More broadly, it serves to evaluate the impacts of introduced ungulates on indigenous forest understories and biodiversity. Understanding these impacts is critical because ungulates cause significant damage to native flora and forest ecosystems, particularly in New Zealand, where vegetation evolved without mammalian herbivores and remains highly vulnerable to browsing (Sweetapple & Nugent, 2004). The surveys, undertaken in 2013, 2015, 2018, and 2023, followed a methodology based on the Department of Conservation Goat/Pig Monitoring Strategy Sounds Area 2002 (olddm-880882) suggested by Tom Stein in 2002. This strategy uses the Seedling Ratio Index (SRI) developed by Sweetapple & Nugent (2004), along with additional indices, to provide a comprehensive assessment of ungulate impacts and abundance. Data collected include plant occurrence, browsing intensity, ungulate sign, and regeneration patterns, providing long-term ecological information to guide management interventions. Results from these surveys demonstrate that ungulates continue to have significant negative impacts on biodiversity. Recruitment of key palatable species is very low, and forest resilience to ongoing browsing and disturbance remains limited. This monitoring supports both biodiversity conservation and the protection of water quality within the catchments.

計畫名稱 Nelson City Council Waterworks Reserves Browse Monitoring Surveys
經費來源 The project is funded by Nelson City Council (NCC), which commissioned Kaitiaki o te Ngahere Ltd to carry out browse monitoring surveys in the Waterworks Reserves in 2013, 2015, 2018, and 2023.
研究區域描述 The study area is the Nelson City Council goat control area within the Maitai and Roding waterworks catchments, located south and east of Nelson City. Together, these catchments cover approximately 14,500 hectares (excluding roads, lakes, riverbeds, and pine plantations). The ongoing 22 transects are located within the 4,675-hectare goat control area, which lies within the larger waterworks catchment boundary.
研究設計描述 In May 2013, the Nelson City Council (NCC) commissioned Kaitiaki o te Ngahere to establish and survey 15 transects that were randomly located and permanently marked in the Maitai and Roding catchments. Each transect consisted of 20 plots spaced 20 metres apart along a true north bearing, giving a total length of 400 metres per transect. The first survey was carried out between 23 May and 31 July 2013. The same transects were revisited between 8 July and 6 August 2015. A review of the survey design in 2018 resulted in the removal of 5 of the original 15 transects and the addition of 12 new ones, resulting in a revised network of 22 “ongoing” transects. While some of the 2013–2015 transects were incorporated into this new network, the 2018 survey measured 12 different transects between 27 June and 22 August 2018. The full revised network of 22 transects was subsequently surveyed between 17 July and 4 August 2023. Within each plot, observers recorded all plants taller than 0.3 m but shorter than 2 m within a 1.4 m radius (“Browse Tier”). Only species capable of attaining a free-standing height of at least 30 cm in the absence of ungulates were included. Seedlings shorter than 0.3 m were recorded within a 0.49 m radius (“Ground Tier”), with cotyledon-only seedlings excluded. Species were also categorised into habit classes such as climbers, herbs and woody species. Following a review of the methodology by Sweetapple in 2022, a few changes were applied in the 2023 survey compared with previous surveys to increase the efficiency and robustness of data collection and analysis. In addition to the increased number of transects, the Browse Tier was redefined as plants 15–200 cm above the ground, and only the presence/absence of each species per plot was recorded rather than counts. All annual-herbs, ground-ferns, tall-monocotyledons, short-woody and climbing species were also excluded. Ripogonum scandens (supplejack) was included as an exception due to its self-supporting growth habit. For Browse Tier species, a Browse Index (BI) was visually assessed to quantify ungulate browsing intensity on individual plants, providing an index of ungulate abundance. A BI value was assigned to each plant species with foliage using a 5-point scale: - 0: No ungulate browse - 1: 0–25% of stems or shoots browsed - 2: 26–50% of stems or shoots browsed - 3: 51–75% of stems or shoots browsed - 4: 76–100% of stems or shoots browsed Observers also recorded: - physiography characteristics (drainage, aspect, slope, and altitude), - location of transect origin and plot centre, - vegetation type, - the percentage of the 1.4 m plot with recent pig digging, - the percentage of the plot potentially available for pig digging, - animal sightings and signs, - site-specific comments, - from 2018 onwards, the presence/absence of faecal pellets within the 0.49 m plot (noting species, quantity, and condition), and - the presence of weed species (species name, age class, and estimated distribution). Additionally, from 2018, plant species were assigned to palatability classes (high, moderate, low) based on existing literature. All collected data were checked, sorted, and cleaned for provision to NCC and for future analysis. This included calculating the Faecal Pellet Index (FPI) and the Seedling Ratio Index (SRI). FPI measures the ratio of faecal pellet presence to absence by species per transect. SRI is the ratio of species richness of tall seedlings (Browse Tier, 30–200 cm) to that of short seedlings (Ground Tier, <30 cm), calculated across species or palatability preference classes. Developed by Sweetapple and Nugent (2004), this index is used to assess and monitor the impact of introduced ungulates on indigenous forest understories. The method assumes that short seedling richness is largely unaffected by browsing, whereas palatable tall seedling richness is reduced due to selective browsing and growth suppression. Higher SRI values indicate stronger ungulate impacts. Sweetapple and Nugent demonstrated a strong negative correlation between SRI of high-preference plants and ungulate abundance, confirming this method as a reliable indicator of browsing pressure and, by extension, the effectiveness of animal control efforts.

參與計畫的人員:

Isaline Jadin
  • 作者
Brad Myer
  • 審閱者
Phillip Cochrane
  • 審閱者

引用文獻

  1. Sweetapple, P. J., & Nugent, G. (2004). Seedling ratios: A simple method for assessing ungulate impacts on forest understories. Wildlife Society Bulletin, 32(1), 137–147. https://doi.org/10.2193/0091-7648(2004)32[137:SRASMF]2.0.CO;2
  2. Sweetapple, P. (2022). Evaluation of seedling ratio monitoring in the Nelson City Council Waterworks Reserve: Evaluation of seedling ratio data from an ungulate control area, Nelson (Contract Report No. LC4162). Manaaki Whenua – Landcare Research. https://envirolink.govt.nz/

額外的詮釋資料

致謝
Introduction
目的
維護說明 This dataset will be updated to include the results of any future Browse Monitoring Surveys undertaken in the Waterworks Reserves by Kaitiaki o te Ngahere.
替代的識別碼 4836d32f-8d9a-4a6b-ad54-2b16bf2d7e77
https://ipt.gbif.org.nz/resource?r=nelson_water_catchments_browse_monitoring_data