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United States Geological Survey Science is Refining eDNA Techniques and Developing New Applications. Research by the U.S. Geological Survey is leading to new techniques in the use of environmental DNA, or eDNA, to detect invasive species and their spread.

The U.S. Fish and Wildlife Service and U.S. Geological Survey have signed a memorandum of understanding formalizing their joint leadership of the North American Bat Monitoring Program (NABat), a collaborative partnership focused on advancing bat conservation across North America. As co-leads of the NABat program, the two federal agencies will work to ensure the program remains sustainable and meets the needs of partners by providing coordination, technical assistance, data products and analyses that make it easier to apply bat monitoring data more effectively in support of conservation. For more information about the North American Bat Monitoring Program and opportunities to participate, please visit https://www.nabatmonitoring.org.

NABat was born out of the urgent need to monitor bat populations following the emergence of white-nose syndrome, a disease of hibernating bat species that appeared in New York in 2007 and has since spread across the continent. White-nose syndrome is considered one of the worst wildlife diseases in modern times, resulting in the loss of millions of bats across North America.

Invasive non-native insects have been called the "wildfires of the East," given the damage they cause to trees. One pest, the emerald ash borer, has killed hundreds of millions of rural and urban ash trees. To help arborists and city planners track and treat potential outbreaks, U.S. Forest Service scientists seek efficient monitoring techniques.

For the first time, scientists have tracked the movement of a wild bird known to be infected with highly pathogenic avian influenza in North America. The new research, led by the U.S. Geological Survey, can help improve estimates of when and where the virus could spread in the environment and to other birds.

Quagga mussels were found in the Snake River in September 2023. Immediately afterwards, Idaho Fish and Game assisted the Department of Agriculture in their evaluation of potential treatments to eliminate the mussels, and Idaho Fish and Game quantified the fish populations found in the six-mile stretch of river where the mussels were found, and where the treatment would occur. Biologists quickly learned that the treatment caused high mortality in certain species, while others survived quite well.

The Forest Health Assessment & Applied Sciences Team (FHAAST) produces publications, reports, and posters that address forest health-related disturbances. Topics include forest insects and diseases, native and invasive species, biological control, biopesticides, aerial survey, forest disturbance detection and risk assessment.

The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) invites stakeholders to tap into their creativity and submit innovative proposals for fiscal year (FY) 2025 Plant Protection Act Section 7721 (PPA 7721) funding. APHIS is funding projects that protect American agriculture and natural resources this summer, and it’s time to apply! Applicants can submit suggestions for Plant Pest and Disease Management and Disaster Prevention Program funding from June 5 through July 31, 2024.

As communities continue to recover from widespread destruction caused by recent hurricanes Helene and Milton, floodwaters from these storms may have accelerated the spread of invasive wildlife and plant species into new areas.

"Help Stop the Pop", MFC's popcorn tree control program, aims to track popcorn trees, assist municipalities with popcorn tree control, and educate landowners about proper tree removal. Chinese tallow trees, also known as the popcorn tree, are deceptive. They look attractive and ornamental, but they are actually highly invasive and will quickly damage the native ecosystem wherever they are planted. By reporting the location of these trees, you can help the Mississippi Forestry Commission (MFC) get a full picture of Mississippi's popcorn tree problem, which is the first step to combating the spread of this invasive species. Help the MFC stop the spread of this invasive species. Report sightings to HelpStopThePop.com. More Information visit the MFC's Chinese Tallow Tree information page.

In 2016 NASS began to collect data on honey bee health and pollination costs. Provides reliable, up-to-date statistics help track honey bee mortality.

Black carp, which are an invasive fish species in North America, are now known to be established in the wild in parts of the Mississippi River basin. A new study co-authored by the U.S. Geological Survey (USGS) is the first to identify an established population—meaning they are naturally reproducing and living to adulthood— of wild black carp in any location across the U.S.

When a black carp is captured in the wild, it can be reported to the USGS Nonindigenous Aquatic Species database. That tool compiles information on and can be used to track the status of other aquatic invasive species as well. The USGS is involved in many invasive species projects across the U.S. and its territories. Learn more by visiting the USGS Invasive Species website or the USGS Invasive Carp section.

Divers monitoring Lake Tahoe have discovered invasive New Zealand mudsnails in areas off the South Shore, the Tahoe Regional Planning Agency (TRPA) and Tahoe Resource Conservation District (Tahoe RCD) announced today. This is the first time the species has been detected in the Tahoe Basin.

Following rapid response protocols under the federally approved Lake Tahoe Aquatic Invasive Species Management Plan, TRPA convened an incident team comprised of staff from TRPA and Tahoe RCD and partner experts. The team is rapidly deploying scientists, beginning with lake-wide dive surveys to determine the extent of the infestation and sharing all available information with state and federal wildlife managers through the Lake Tahoe Aquatic Invasive Species Coordinating Committee. Get up-to-date information on the response and potential protocols for management of the infestation on the TRPA New Zealand mudsnail page.

The Washington State Department of Agriculture (WSDA) is beginning its annual search for pests that could threaten the state’s environment and agricultural industry. Staff will set thousands of traps statewide to monitor for the introduction or spread of more than 130 invasive pests and diseases, including spongy moth, Japanese beetle, apple maggot and northern giant hornet.

WSDA is still asking residents to report all suspected hornet sightings. Northern giant hornet queens should be active now and could be spotted while they establish their nests. As the colony grows, worker hornets may become increasingly visible throughout the summer and into the fall. See Public hornet trapping instructions for more information.

This article highlights the role of data in responding to the Asian giant hornet and describes how officials at the Washington State Department of Agriculture employed 'citizen scientists' and ‘cooperators’ to locate and eradicate a nest of deadly Asian giant hornets in their state.
See also: Western Governors' Association Launches Invasive Species Data Mobilization Campaign (Dec 18, 2020)

Chapter 10 (pages 231-242) in open access book; see related resource: Invasive Species in Forests and Rangelands of the United States: A Comprehensive Science Synthesis for the United States Forest Sector

Inventory and monitoring programs and high-quality distribution data are needed to manage invasive species and to develop quantitative ecological, economic, and social impact assessments. Strong inventory and monitoring programs provide valuable insights that help direct efforts to prevent and contain invasive species. Understanding where to focus management efforts, in addition to educational outreach, is key to developing economically efficient and ecologically relevant programs.

Citation: Oswalt, Sonja; Oswalt, Chris; Crall, Alycia; Rabaglia, Robert; Schwartz, Michael K.; Kerns, Becky K. 2021. Inventory and Monitoring of Invasive Species. 2021. In: Poland, Therese M.; Patel-Weynand, Toral; Finch, Deborah M.; Ford Miniat, Chelcy; Hayes, Deborah C.; Lopez, Vanessa M., eds. Invasive Species in Forests and Rangelands of the United States: A Comprehensive Science Synthesis for the United States Forest Sector. Heidelberg, Germany: Springer International Publishing: 231 - 242. Chapter 10.

On August 5, the Washington Department of Fish and Wildlife (WDFW) received notification from a local wholesale aquarium company in Renton of possible invasive freshwater mussels on a shipment of Marimo moss balls (Aegagropila linnaei). Moss balls are a commonly used decorative algae in aquariums and water gardens. Lab testing confirmed the mussels were zebra mussels (Dreisena polymorpha), a prohibited aquatic invasive species in Washington that, if established in local waters, would be capable of causing significant infrastructure and environmental damage. Zebra mussels and a close relative, the quagga mussel, are not known to be established in Washington.

See also: Surveying and Monitoring section for more resources