Resource Search 1 | National Invasive Species Information Center

Maine Department of Agriculture, Conservation, and Forestry. Maine Natural Areas Program.
See also: Official 2019 Endorsement of the Advisory List of Invasive Plants [PDF, 711 KB] by the Maine Department of Agriculture, Conservation and Forestry.

University of Minnesota. Minnesota Invasive Terrestrial Plants and Pests Center.
To determine which pests posed immediate threats, MITPPC undertook an expansive evaluation process. It convened 15 expert panelists, who ultimately identified 124 significant invasive species threatening our state. This panel also identified 17 criteria that could be used to rate species in an objective, computerized ranking system. Criteria included factors like environmental and economic impact, ability to establish and spread and proximity to the state. Rankings are updated regularly, no later than every other year or as new threats emerge on a more urgent basis. The full whitepaper, Minnesota's Top Terrestrial Invasive Plants and Pests for Research: An Expanded Prioritization [Jan 2020; PDF, 3.64 MB], outlines all prioritization methods and results.

DOI. USGS. Wetland and Aquatic Research Center.
Provides fact sheets, maps and collection information for aquatic vertebrates and invertebrates occurring outside of their native range.

Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).

Mar 2018
Western Governors' Association.
See also: WGA's 'Top 50 Invasive Species in the West' offers first regional report for more information

Aug 22, 2023
Michigan.gov. Michigan Invasive Species Program.
Michigan’s invasive species watch list was recently updated to include two new species and remove another. Mountain pine beetle, a deadly threat to pine trees, and water-primrose, a fast-spreading aquatic plant, have been added to the watch list due to threats they pose to native ecosystems and industry. European frog-bit, originally listed in 2011, has been moved off the list of species of immediate concern and is now considered established in the state.