The National Institute of Invasive Species Science (NIISS) Global Organism Detection and Monitoring (GODM) system data set

The data set is a compilation of integrated data sets and individual data contributions that all contain the core elements of who, what, where, and when. The minimal data required for inclusion within this data set include what species was found, where the species was found, by whom the species, found, and on which day was the species found.

In some cases, archival data sets important for range distributions for key species have been included that only contained the year in which the species was observed. In these cases, the January 1st day was used for the given year. The purpose of this data set is to provide a consistent nationwide database for the occurrences of invasive species throughout the United States.