Focused on the threat of invasive species on native species and ecosystems on islands. The site enables users to search the database directly by species, or by location, or by impacts of invasive species and their outcomes on native populations. With each species entry, there is an invasive threat summary, and a threat management summary detailing possible conservation strategies and past case studies. IBIS was developed by the IUCN SSC Invasive Species Specialist Group in response to feedback from island conservation managers that there was a need for better access to data and information on invasive alien species on islands and how to manage this insidious threat. IBIS aims to record and provide information on the impacts of invasive alien species on native species on islands (with a focus on those that are classified as ‘threatened’ in the IUCN Red List of Threatened Species- Critically Endangered (CR), Endangered (EN) and Vulnerable (VU)), and the management of this threat.