Invasive Species Program


More than 6,500 nonindigenous species are now established in the United States, posing risks to native plants, animals, microorganisms, valued ecosystems, and human and wildlife health. In fact, the current annual environmental, economic, and health-related costs of invasive species exceed those of all other natural disasters combined.

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Nonindigenous Aquatic Species (NAS) Database

Nonindigenous Aquatic Species (NAS) Database

The NAS database is a central repository for spatially referenced biogeographic accounts of introduced aquatic species. The program provides scientific reports, online/realtime queries, spatial data sets, distribution maps, and general in

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Robotic DNA Samplers to Detect Invasive Species

Robotic DNA Samplers to Detect Invasive Species

USGS researchers and their collaborators demonstrated the efficacy of using robotic environmental DNA samplers.

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USGS scientists study hundreds of invasive species.

Invasive Animals

Invasive Pathogens

Invasive Plants

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Date published: July 28, 2021

Fort Collins Science Center Ecologists Share Expertise on Invasive Species

Research Ecologists Amy Yackel Adams and Andrea Currylow present “Invasive Reptiles: Lizards, Treesnakes, and Burmese Pythons, Oh My!” lecture

Date published: May 27, 2021

Media Availability: Study of Invasive Carp Deterrent Underway in Keokuk

Researchers from the U.S. Geological Survey and U.S. Army Engineer Research and Development Center will be available on June 3 for in-person interviews and updates on an invasive carp deterrent study that is underway at Mississippi River Lock and Dam 19.  


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Year Published: 2021

Calcium concentrations in the lower Columbia River, USA, are generally sufficient to support invasive bivalve spread

Dissolved calcium concentration [Ca2+] is thought to be a major factor limiting the establishment and thus the spread of invasive bivalves such as zebra (Dreissena polymorpha) and quagga (Dreissena bugensis) mussels. We measured [Ca2+] in 168 water samples collected along ~100 river-km of the lower Columbia River, USA, between June 2018 and March...

Bollens, Stephen M.; Harrison, John A.; Kramer, Marc G.; Rollwagen-Bollens, Gretchen; Counihan, Timothy; Robb-Chavez, Salvador B.; Nolan, Sean T.

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Year Published: 2021

A chemical and bio‐herbicide mixture increased exotic invaders, both targeted and non‐targeted, across a diversely invaded landscape after fire

QuestionsInvasive‐plant treatments often target a single or few species, but many landscapes are diversely invaded. Exotic annual grasses (EAGs) increase wildfires and degrade native perennial plant communities in cold‐desert rangelands, and herbicides are thus sprayed to inhibit EAG germination and establishment. We asked how EAG target and non‐...

Lazarus, Brynne E.; Germino, Matthew J.

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Year Published: 2017

Satellite-tagged osprey nearly sets longevity record and productivity response to initial captures

We equipped adult Ospreys (Pandion haliaetus) from 24 nests in Oregon/Washington with satellite-tracked battery-powered radios, known as platform transmitter terminals (PTTs), in 1996–1999. These Ospreys from the lower Columbia River (river miles 76–286), and the Willamette Valley in western Oregon were part of a larger study of Osprey fall...

Henny, Charles J.; Martell, Mark S.
Henny, C.J., Martell, M., 2017, Satellite-tagged osprey nearly sets longevity record and productivity response to initial captures: Journal of Raptor Research, v. 51, no. 2, p. 180-183,