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Au Mont Lulu à Wallis, le Service Territorial de l’Environnement a mené des opérations de retrait d’agaves américaines sur trois sites totalisant 400 m2. Après les premières opérations de retrait de 30 individus adultes (mesurant 2m de hauteur et 1,5 m de diamètre), 120 individus moyens et plus de 1500 plantules ont également été enlevés. Un travail important de suivi a été déployé, permettant de contrôler la repousse.

Les plantes envahissantes représentent un risque important pour la biodiversité. Elles accaparent les ressources des espèces indigènes ou endémiques. A Wallis et Futuna dans le cadre du projet PROTEGE, les agents du Service territorial de l’environnement (STE) créent une pépinière afin de reboiser les espaces sur lesquels le merremia pelcata, une liane très envahissante, a recouvert la forêt.

La liste préventive des espèces exotiques envahissantes de Wallis et Futuna a été créée en 2024 par une révision de la règlementation, à la suite d'une prestation d’une biologiste, et de la consultation d’associations et de services du territoire. Elle répertorie 123 espèces absentes du territoire mais présentes dans la région et dont Wallis et Futuna entend se préserver. Le document compile des fiches techniques de reconnaissance et de gestion des 123 espèces figurant sur la liste préventive, relatives aux milieux terrestres, humides et de rivières et marins. Le document détaille également les 6 étapes du plan d'intervention rapide élaboré pour répondre aux introductions d'espèces exotiques envahissantes à Wallis et Futuna : (i) réceptionner le signalement, et collecter les informations; (ii) confirmer l'identification de l'espèce; (iii) améliorer la connaissance sur la répartition de l'espèce; (iv) évaluer la situation et choisir l'option de gestion; (v) élaborer et mettre en place un plan d'intervention et (vi) veiller.

Updates on the work being done by PRISMSS is published in the PRISMSS Newsletter.

This Battler Series publication builds understanding about negative impacts of weeds in Pacific island contexts and supports the prioritisation of established, widespread weeds for management. This guide is based on training conducted by PRISMSS NENS Technical Lead Manaaki Whenua – Landcare Research (MWLR), New Zealand. Tiffany Straza prepared the guide text; Lynley Hayes, Chris McGrannachan, and Quentin Paynter provided review. This publication is part of a collection of Battler guides on managing weeds in the Pacific region. For an introduction to biocontrol, read the Battler publication Use natural enemies to manage widespread weeds in the Pacific. For weeds present at low abundance, see Manage low-incidence priority weeds to conserve Pacific biodiversity.

The Pacific Island nations of Niue and Tonga are leading global efforts to expand the management of invasive species at a large-landscape scale and increase the resilience of their ecosystems and communities to the impacts of climate change. Niue’s Environment Minister, Hon. Mona Ainuu, recently made an ambitious pledge for the country to control four priority invasive species by 2030, including Taro Vine, rats, feral pigs, and the coral eating Drupella snail. This work will help to enhance Niue’s premium ecotourism brand and directly support the provision of green jobs. Tonga has also pledged to expand the management of priority invasive species at a large-landscape scale following the successful eradication of rats from Late Island, the largest eradication ever undertaken in the Pacific Islands region. Studies have shown that, once rats are removed, the nutrients from returning seabird populations restore the climate resilience of coral reefs and increase the productivity of fish stocks by up to 50%. Tonga’s plans to scale-up the management of priority invasive species will help expand its national park system, provide refugia for 95% of the country’s biodiversity, and directly increase the climate resilience of its ecosystems and communities.

The Pacific Island nations of Niue and Tonga are leading global efforts to expand the management of invasive species at a large-landscape scale and increase the resilience of their ecosystems and communities to the impacts of climate change. Niue’s Environment Minister, Hon. Mona Ainuu, recently made an ambitious pledge for the country to control four priority invasive species by 2030, including Taro Vine, rats, feral pigs, and the coral eating Drupella snail. This work will help to enhance Niue’s premium ecotourism brand and directly support the provision of green jobs. Tonga has also pledged to expand the management of priority invasive species at a large-landscape scale following the successful eradication of rats from Late Island, the largest eradication ever undertaken in the Pacific Islands region. Studies have shown that, once rats are removed, the nutrients from returning seabird populations restore the climate resilience of coral reefs and increase the productivity of fish stocks by up to 50%. Tonga’s plans to scale-up the management of priority invasive species will help expand its national park system, provide refugia for 95% of the country’s biodiversity, and directly increase the climate resilience of its ecosystems and communities.

Previous efforts to prevent, eradicate, and control invasive species in Tuvalu demonstrate that collaboration across all levels of government, Kaupule, landowners, and other interested parties is critical to minimising the spread and impact of invasive species. This NISSAP will provide us with guidance on how to address the problems that invasive species pose to our environment. The NISSAP is a plan for an urgent and effective response to reduce the threat of invasive species. It will help us enact preventive measures for early detection and rapid response at our marine ports and airports, specifically targeting inbound commercial shipments and the importation of exotic animals and plants.

The purpose of the Guiding Framework is to support anyone or any institution planning and implementing invasive species projects or programmes on islands in the Pacific. To this end, this document lists the essential components of a comprehensive and effective invasive species management programme. It has been compiled in consultation with experts and Pacific Island countries and territories, to support them in developing their invasive species work and to guide regional and international agencies. The Guiding Framework has been endorsed by all countries and territories in the Pacific islands region and the metropolitan countries with jurisdictional responsibilities in the Pacific via the Secretariat of the Pacific Regional Environment Programme (SPREP) and Pacific Community (SPC) Meetings.

The guidance in this document is for invasive species management practitioners and local authorities in Pacific countries who wish to improve biosecurity for their islands. Preventing invasive species from spreading between islands is everyone’s responsibility and is to everyone’s benefit. This document provides guidance on biosecurity measures for anyone involved in inter-island travel, trade, and transport.