invasive alien species

Recent years have seen large increases in the number and size of successful invasive species eradications from islands. There is also a long history of large scale removals on larger land-masses. These programmes for mammals and terrestrial plants follow the same cost-area relationship although spanning 10 orders of magnitude in scale. Eradication can be readily defined in island situations but can be more complex on larger land-masses where uncertainties defining the extent of a population, multiple population centres on the same land-mass and ongoing risks of immigration are commonplace.

In 2012 a process was initiated to produce a guidance document for invasive species management on islands, as an objective of a regional invasive species project in the Western Indian Ocean (WIO) islands, implemented by IUCN. The consultative process for producing the document began with requests and discussions via regional and global island and invasives email distribution lists. Initial responses revealed a consensus on the need for a guidance document for programmatic planning.

The rose-ringed parakeet (RRP), Psittacula krameri, has become established in at least four Pacific Island countries (Hong Kong China, Japan, New Zealand, U.S.A.), including the Hawaiian islands of Kaua‘i, O‘ahu, and Hawai‘i. Most Pacific islands are at risk of RRP colonization. This species was first introduced to Hong Kong in 1903 and Hawai‘i in the 1930s–1960s, established since 1969 in Japan, and in New Zealand since 2005 where it has repeatedly established after organized removals. The founding birds were imported cage-birds from the pet trade.

Australia can’t afford to allow in any more insect colonists like red imported fire ants, electric ants, browsing ants, yellow crazy ants, Argentine ants, African big-headed ants, Asian honeybees, large earth bumblebees and German wasps. These invaders are costing both the Australian environment and economy dearly. Hundreds of millions of dollars are being spent on Australia-wide eradications of red fire ants, electric ants and browsing ants because of their potential for devastating harm to wildlife and impacts on people.

Video of Little Fire Ant, Wasmania auropunctata, Regional Alian Invasive Species Project funded by Global Environmental Facility - Pacific Alliance for education of the problems they cause to the community; instructions on eradication by baiting of Little Fire Ants on Vanuatu described and recommendation of best investiment and management for alien invasive species is to have quarantine and biosecurity systems in place with trained personnel and resources to prevent the spread of alien invasive species coming into the country and spreading within the country.

This guide is intended to be used by those working in biosecurity and plant health, and by all those interested in preserving the unique environments and biodiversity found in the Caribbean UKOTs. The guide will not enable the user to identify to species all the invasive invertebrate plant pests that they may encounter, but it does provide advice on how to collect and preserve specimens for further study and where to seek assistance.

This is a generic document which can be adapted to the needs of any territory

The purpose of this guide is to provide simple factsheets on priority invasive alien pests that currently threaten plant health, human health and/or biodiversity in the Pitcairn Islands (Pitcairn, Henderson, Ducie and Oeno Islands), a UK Overseas Territory located in the southern Pacific Ocean. It also identifies the main pathways of introduction so that biosecurity inspections can be targeted. The guide is intended to be used by those working in biosecurity, and by all those interested in preserving the unique environments and biodiversity found in the Pitcairn Islands.

This guide is to provide a methodology and action plan to rapidly detect newly introducted non-native potentially invasive plant species so that they can be eradicated before they have a chance to establish themselves.