Tristan da Cunha: Alien Plant Observations 2023 and 2025

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、460 レコードが含まれています。

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。:

Floyd K, Myer B (2026). Tristan da Cunha: Alien Plant Observations 2023 and 2025. Version 1.6. Kaitiaki o te Ngahere. Occurrence dataset. https://ipt.gbif.org.nz/resource?r=tristan_observations&v=1.6

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: b870725b-d0da-4dd4-9ca4-20bebb62c4d7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; Tristan da Cunha; alien; invasive; plants; Observation

連絡先

地理的範囲

Tristan da Cunha

生物分類学的範囲

Alien vascular plants from Tristan da Cunha

プロジェクトデータ

Tristan da Cunha is the most remote inhabited island in the world. The community has a long history here, and the Settlement Plain has been transformed from a natural landscape into a productive area. The island’s steep and mountainous geography has limited broader landscape development. Tristan da Cunha hence supports significant populations of globally threatened birds and plants. Tristan da Cunha's unique biodiversity is of global importance due to its high levels of endemism. The island group’s flora includes roughly 50 native flowering plants and 35 native ferns, with nearly half of these vascular plants being endemic. The territory is also globally significant for its avifauna, supporting 86 native bird species, including 11 endemic species such as the Tristan Thrush. The ecosystem types are vertically zoned by elevation, ranging from coastal areas – where the original tussock grassland communities have largely been lost due to grazing – to Phylica arborea woodland and fernbush, to high-altitude mire and feldmark vegetation. A total of 170 non-native plant species have been recorded on Tristan da Cunha. While a small number of additional introduced species occur on the other islands in the archipelago, the primary source of plant introductions is Cape Town, South Africa, from which the majority of shipping originates. Weeds pose a serious threat to biodiversity by disrupting ecosystem processes and outcompeting native species. Once established, many invasive plants produce large quantities of long-lived seeds, making eradication challenging. Successful weed management depends on accuracy, persistence, and timing. A clear management strategy ensures stakeholders understand their roles, are adequately resourced, and can act effectively, thereby safeguarding both ecological integrity and prior conservation investments. Proactive management remains the most effective and cost-efficient approach for protecting biodiversity and achieving long-term conservation outcomes.

プロジェクトに携わる要員:

収集方法

An extensive survey was conducted by Gremmen and Halbertsma, in 2007 - 2008. They spent 4 months on the island and identified 137 alien vascular plant species and documented the threats they pose to the island’s unique endemic biodiversity and agricultural production. Kelvin Floyd and Bradley Myer visited the island in 2023 and 2025 respectively. Their focus was re assessing the highest priority species based on the ecological impact of the alien invasive species. Alien species are primarily focused around the settlement of Edinburgh of the Seven Seas.

Method step description:

1. Data was recorded in the field then synced to the cloud and then aggregated with the other datasets.

追加のメタデータ