Management Action-Management

Feral and wandering domestic pigs collectively cause significant environmental damage in Niue, chiefly to coconut crab populations and to seedling coconuts. They also cause significant economic damage to plantations and domestic gardens.

Progress report from Jack Craw to Brendon Pasisi (Director DAFF), Sauni Tongatule (Director Department of Environment), David Moverly (SPREP) and Huggard Tongatule (Department of Environment).

Progress report from Jack Craw to Josie Tamate (Directory General, Ministry of Natural Resources), Brendon Pasisi (Director DAFF), Sauni Tongatule (Director Department of Environment), David Moverly (SPREP) and Huggard Tongatule (Department of Environment).

Feral and wandering domestic pigs collectively cause significant environmental damage in Niue, chiefly to coconut crab populations, seedling coconuts, soil organisms, soil structure and fertility transfer. They also cause significant economic damage to plantations and domestic gardens.

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.

Invasive alien species (IASs) on islands have broad impacts across biodiversity, agriculture, economy, health and culture, which tend to be stronger than on continents. Across small-island developing states (SIDSs), although only a small number of IASs are widely distributed, many more, including those with greatest impact, are found on only a small number of islands. Patterns of island invasion are not consistent across SIDS geographic regions, with differences attributable to correlated patterns in island biogeography and human development.