The Global Invasive Species Database was developed by the Invasive Species Specialist Group (ISSG), an international group of 100+ scientific and policy experts with the Species Survival Commission (SSC) of the International Union for the Conservation of Nature (IUCN). The entry page of the Website offers background information on invasive species and instructions on how to use the database. A section entitled 100 of the worst (ranging from Rat to Purple Loosestrife) gives viewers an idea of the type of information that will be included in the database, both in terms of expected detail and organizational structure of the database. Types of information provided for each species include Ecology, Distribution, Habitat Matches, References, and Contacts. In addition, a Predictive feature allows viewers to predict the expansion of invasive species, and the Early Warning System matches habitats that the species has already invaded with "other similar habitats around the world." Although still under construction, this database should be a powerful tool for researchers and educators, once completed.