Regional

Invasive rodents have an overwhelmingly detrimental impact to native flora and fauna on islands. Rodent eradications from islands have led to valuable biodiversity conservation outcomes. Tropical islands present an additional suite of challenges for rat eradications due to unique characteristics associated with these environments. To date tropical island rat eradications have failed at a higher rate than those undertaken outside the tropics. Critical knowledge gaps exist in our understanding of what drives this outcome.

A study tour of restoration projects was conducted for seven participants from four Polynesian countries (American Samoa, Niue, Samoa and Tonga) between March 20 and 27, 2015 to Auckland, New Zealand. All participants are involved in restoration projects in their home country, most funded under the GEF-PAS "Prevention, control and management of invasive alien species in the Pacific Islands" Project. Seven restoration sites were visited, including 3 island sites and 4 mainland sites.