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  • Tags / Keywords Rattus exulans (Pacific rat )
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Feasibility assessment of the eradication of ship rats (R.rattus) and kiore (R.exulans) from Palmerston Atoll, Cook Islands
BRB
Available Online

Oyston, E. (Department of conservation)

2023
This report assesses the feasibility of eradicating rats from Palmerston Atoll – a small inhabited Atoll located in the Southern Cook Island group. The project was originally requested by the community so has social acceptance and political support. The project is being funded by the New Zealand Ministry of Foreign Affairs and Trade through the Managing Invasive Species for Climate Change Adaptation in the Pacific project. The Department of Conservation are leading the operational planning and delivery of the project, in collaboration with multiple Cook Island partner agencies and the Palmerston Island community. The feasibility study reviews why the eradication is being done; whether it is achievable; sustainable and acceptable; and identifies what the key issues and dependencies are; and proposes the next steps if the project is to proceed. Rats are present on two islands within the Atoll, over a total operational area of 71 hectares. Ship rats and kiore and present on the inhabited island (Palmerston/Home Island), while only kiore are present on Cooks motu. Rats have a significant impact of the livelihoods of the residents on the Atoll, and the elimination of these impacts, in addition to the biodiversity gains eradicating rats will bring, is the driver for the proposed project.
Operation report on the field delivery period: Palmerston Atoll rat eradication project, August - September 2023
BRB
Available Online

Oyston, E. ) Department of Conservation

2023
This document reports on the operational ac􀆟vi􀆟es carried out over the field work delivery period of the Palmerston Atoll rat eradication. The purpose of doing this is to retain and build institutional knowledge and learnings for future operations; as well as report on the operational proceedings in the event they need to be referred to in the future. The operational delivery of the eradication was carried out in August and September 2023, with eradication validation monitoring anticipated to occur in March 2024. The project was funded by the New Zealand Ministry of Foreign Affairs and Trade through the Managing Invasive Species for Climate Change Adaptation in the Pacific (MISCCAP) programme. The planning and operational delivery of the eradication project was led by the New Zealand Department of Conservation (DOC), with collaboration and support for fieldwork provided by the Cook Islands’ National Environment Service, Te Ipukarea Society (a Cook Island non-governmental organisation), and the Palmerston Island community. The 6 months’ worth of operational planning for the project is detailed in the Palmerston Atoll Operational Plan (Oyston, 2023), and a feasibility study (Oyston, 2023a) was carried out prior to this in November 2022. The operational plan should be used for reference in conjunction with this document if the reader is unfamiliar with the site and project context.
Tokelau Kimoa/Rat, Feral Pig and Feral Cat Eradication Feasibility Assessment.
SPREP Publications, Island and Ocean Ecosystems, BRB
Available Online

Jacques, P.

2024
Eradication of rodents, feral pigs and feral cats from Tokelau would bring many benefits, both to terrestrial and marine biodiversity and to the livelihoods and well-being of the community. The restoration of native biodiversity following the removal of invasive mammals is a nature-based solution to maximise the resilience of the islands to the threats posed by human-induced climate change. The proposed eradication is sustainable if biosecurity measures are improved and maintained for the movement of people and goods between Apia (Samoa) and each nuku, and if long-term management can prevent the reintroduction of domestic pigs and cats onto the motu. The eradication is achievable provided that the community agree with the proposed methodology and are willing to support all recommendations. The key dependency is the acceptability to the community of slaughtering all or most of the domestic pigs prior to the eradication of rodents and restocking the communal pig pens only after the caution period has expired. The proposed eradication is technically feasible and within the current limitations of a range of tools. This document will be submitted for consideration to the Taupulega of each nuku and other stakeholders. The dependencies summarised in section 8 will need to be considered carefully as these must be resolved before a Tokelau-wide eradication can proceed. If the proposal is considered acceptable then a trial eradication using ground-based techniques could be conducted on several islets during 2024. This would have the advantage of demonstrating the benefits of eradicating invasive mammals to the local community, including increased abundance of resources including coconut fruit and crabs.
Wallis and Futuna drone-based rat removal
BRB
Available Online
2023
4 years ago, Wallis and Futuna's Territorial Environment Service embarked on an ambitious journey to remove rats from the islets within the Uvea Lagoon. After completing the required training, community consultations and planning requirements, 4 islets were baited by hand and 9 islets were baited by drone. These islets are now safer for native biodiversity, allowing nature to restore itself and ultimately enhancing resilience against climate change. The healthy islets will be more productive, with more fruit, more crabs, less mosquitoes and more sea birds. This will have positive impacts on the surrounding coastal ecosystem such as reefs and fisheries, which communities rely on.
Creature feature | Introduced Rats
SPREP Publications, Island and Ocean Ecosystems, BRB
Available Online

Richard Griffiths

2021
This video dives into what rats are found in the Pacific, their characteristics, their historical distribution and their impacts.

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