Invasive species are those whose establishment and spread threaten their ecosystems, habitat or other species. These species may be alien or indigenous and the measure of invasiveness is usually nfluenced by environmental differences/changes. Increased international trade and travel associated with tourism have enhanced the movement of species from place to place thus increasing the risk of introductions and attendant challenges to national safeguarding systems. Given the close proximity of countries within the Caribbean Basin it is recognised that the success of their safeguarding measures will be greatly influenced by neighbouring countries.