Invasive Species

This project will develop a transparent process for prioritizing species for listing as injurious, likely to cause damage or harm, under the Lacey Act. Building upon previously developed "horizon scan" and "watchlist" products, this process will identify potentially invasive species that present the greatest risk to lands, waters, and other assets managed by the U.S. Department of the Interior.

The parasitic sea lamprey invaded the Great Lakes in the mid-20th Century devastating valuable native fisheries and coastal economies. The USGS’ Upper Midwest Environmental Sciences Center and the Great Lakes Science Center’s Hammond Bay Biological Station, in collaboration with the Great Lakes Fishery Commission, have been and continue to lead research on sea lamprey control, providing the...

Black Carp ( Mylopharyngodon piceus) is the largest of the four non-indigenous carp species, reaching sizes well in excess of 100 pounds. Scientists at the Columbia Environmental Research Center, in cooperation with federal and state partners, are studying the biology, ecology, and behavior of black carp and developing tools to monitor, assess, and control this non-indigenous species.

Siren: the National Early Detection and Rapid Response (EDRR) Information System is an online resource for invasive species information sharing and collaboration that serves as the information hub of the National EDRR Framework.

Climate change-induced warming can alter plant phenology and disrupt ecosystems like the sagebrush steppe in western North America. The invasive annual grass cheatgrass can thrive under these altered conditions, exacerbating wildfires and threatening wildlife habitat, carbon storage, and other important ecosystem services. We are studying how different densities of cheatgrass respond to increased...

This project analyzes on-the-ground plant monitoring data across sagebrush and rangeland ecosystems to examine how fire, climate, topography, and plant communities influence the success of invasive annual grasses after fires.

European green crabs are one of the most widespread marine invasive species on the planet. Where they are abundant, green crabs compete with other crabs and disturb sediment which can lead to loss of eelgrass and associated habitat essential for commercial, cultural, and ecologically important fish and invertebrate species. Green crab also are a major predator of clams, mussels, and oysters.

Climate change and invasive species are transforming ecosystems. The Resist-Accept-Direct (RAD) framework organizes management objectives into those that seek to Resist change and maintain historical ecological communities, those that Accept some or all aspects of ecological transformation, and those that Direct an ecological community to a preferred state. We are evaluating risks posed by climate...

Cheatgrass, an invasive annual grass, reduces ecosystem productivity, negatively impacts biodiversity, and is increasingly problematic in higher elevation ecosystems with climate change. Cheatgrass phenology (that is, the timing of yearly growth and lifespan) varies greatly with elevation, climate, and weather from year to year, which can make management planning difficult and reduce the ability...

Invasive plants negatively impact our water, wildlife, and way of life. Current management tools are not cutting it, so a multi-agency research team is using molecular biotechnology to develop new species-specific treatments that help land managers improve the natural resources that we depend on and have more management options during droughts, floods, and other periods of plant stress. This...

There are more than 92,000 dams in the United States, of which at least 3% of these produce hydropower. Hydropower projects create renewable energy but also can alter habitats, restrict upstream and downstream movements of fishes and other aquatic organisms, and may stress, injure or kill migrant fishes and other aquatic organisms. In addition, there are more than 5 million culverts and other road...

USGS-FORT in partnership with the University of Florida and two state agencies (South Florida Water Management District and Florida Fish and Wildlife Conservation Commission) have initiated a scout snake program to increase the ability to detect and remove Burmese pythons from the interior of the landscape.