Tonga has successfully removed invasive rats and feral pigs from Kelefesia and Tonumea islets in the Ha’apai Group, marking a significant step in protecting local biodiversity and strengthening climate resilience.
Led by Tonga’s Department of Environment, the project was supported by the Pacific Regional Invasive Species Management Support Service (PRISMSS) and Island Conservation. The effort spanned five months, from July to November 2024, focusing on restoring critical habitats for native bird species and endangered turtles.
“This project is another example of Tonga leading the way in the management of invasive species to build climate resilience,” said Richard Griffiths, Head of Operations at Island Conservation.

The project engaged local communities, with training provided to residents from Nomuka in eradication techniques and biosecurity practices.
Dominic Sadler, PRISMSS Manager, emphasized the initiative’s importance: “This exemplifies the power of collaborative conservation efforts to protect biodiversity and strengthen ecosystem resilience across the Pacific.”
Funded by New Zealand and the UK, the project is part of the Restoring Island Resilience initiative, with follow-up monitoring planned for 2025 to ensure lasting success.