説明
データ レコード
この オカレンス（観察データと標本) リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、11,136 レコードが含まれています。
拡張データ テーブルは1 件存在しています。拡張レコードは、コアのレコードについての追加情報を提供するものです。 各拡張データ テーブル内のレコード数を以下に示します。
この IPT はデータをアーカイブし、データ リポジトリとして機能します。データとリソースのメタデータは、 ダウンロード セクションからダウンロードできます。 バージョン テーブルから公開可能な他のバージョンを閲覧でき、リソースに加えられた変更を知ることができます。
バージョン
次の表は、公にアクセス可能な公開バージョンのリソースのみ表示しています。
引用方法
研究者はこの研究内容を以下のように引用する必要があります。:
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
権利
研究者は権利に関する下記ステートメントを尊重する必要があります。:
パブリッシャーとライセンス保持者権利者は 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登録
このリソースをはGBIF と登録されており GBIF UUID: 4836d32f-8d9a-4a6b-ad54-2b16bf2d7e77が割り当てられています。 GBIF New Zealand によって承認されたデータ パブリッシャーとして GBIF に登録されているKaitiaki o te Ngahere が、このリソースをパブリッシュしました。
キーワード
Occurrence; Observation; Plant; Browse Index; Water catchments; Nelson; Observation
連絡先
- 最初のデータ採集者 ●
- 連絡先
- Nelson Branch Manager
- 33 Vanguard Street
- 0220648599
- メタデータ提供者 ●
- 連絡先
- GIS administrator
- 33 Vanguard Street
- 最初のデータ採集者 ●
- 連絡先
- Environmental Programmes Adviser
- メタデータ提供者 ●
- 連絡先
- GIS Administrator
- 33 Vanguard Street
地理的範囲
Nelson City Council Waterworks Reserves
| 座標（緯度経度） | 南 西 [-41.373, 173.258], 北 東 [-41.284, 173.413] |
|---|
生物分類学的範囲
説明がありません
| 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 |
時間的範囲
| 開始日 / 終了日 | 2013-05-23 / 2013-07-31 |
|---|
| 開始日 / 終了日 | 2015-07-08 / 2015-08-06 |
|---|
| 開始日 / 終了日 | 2018-06-27 / 2018-08-22 |
|---|
| 開始日 / 終了日 | 2023-07-17 / 2023-08-04 |
|---|
プロジェクトデータ
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.
| タイトル | Nelson City Council Waterworks Reserves Browse Monitoring Surveys |
|---|---|
| ファンデイング | 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. |
| Study Area Description | 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. |
| 研究の意図、目的、背景など（デザイン） | 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. |
プロジェクトに携わる要員:
- 論文著者
- レビューア
- レビューア
書誌情報の引用
- 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
- 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/
追加のメタデータ
| 謝辞 | |
|---|---|
| はじめに | |
| 目的 | |
| メンテナンス内容 | 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. |
| 代替識別子 | 4836d32f-8d9a-4a6b-ad54-2b16bf2d7e77 |
| https://ipt.gbif.org.nz/resource?r=nelson_water_catchments_browse_monitoring_data |