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Aquatic invasive species threaten U.S. freshwater bodies throughout the country. One of the most prevalent and prevailing of these is hydrilla (Hydrilla verticillate), which spans from Florida all the way up to Maine, and as far west as California. The state of Florida alone spent $125 million from 2008 – 2015 to manage aquatic invasive species, $66 million of which went toward managing hydrilla. The Florida Fish and Wildlife Conservation Commission (FWC) is estimated to spend $15 million annually on managing hydrilla. This submerged weed is primarily managed through cost effective, safe aquatic herbicides and more costly mechanical harvesting. Due to the prevalence of hydrilla, understanding stakeholder perceptions regarding its management is critical to its successful control. 

This infographic displays Florida’s stakeholder perceptions around aquatic herbicide and mechanical harvesting usage, which can be utilized as a model for other states as well. Data analysis of 3,000 survey responses concluded that a majority of stakeholders are concerned about both the use of aquatic herbicides and mechanical harvesting.

Go behind the scenes of the fight against devastation caused by non-native plants and animals which have changed this precious resource forever. Charles J. Kropke joins military veterans known as the "Swamp Apes," who capture Burmese Pythons, and explores strategies to stop the Old World Climbing Fern.

Restoring islands through the removal of non-native invasive mammals is a powerful biodiversity conservation tool. This new study now shows that human communities on islands could benefit from restoration actions, which can potentially reduce or eliminate the burden of diseases transmitted to people by invasive species. Simply put, removal of invasive species can benefit human health in addition to ecological health.

The global increase in biological invasions is placing growing pressure on the management of ecological and economic systems. However, the effectiveness of current management expenditure is difficult to assess due to a lack of standardised measurement across spatial, taxonomic and temporal scales.

Research Highlights:

• Since 1960, management for biological invasions totalled at least $95.3 billion.
• Damage costs from invasions were substantially higher ($1130.6 billion).
• Pre-invasion management spending is 25-times lower than post-invasion.
• Management and damage costs are increasing rapidly over time.
• Proactive management substantially reduces future costs at the trillion-$ scale.

Provides 12 open access articles related to Early Detection and Rapid Response (EDRR), including a vision for developing a national framework -- a blueprint for a national program for the EDRR to invasive species, working  with tribes, states, and other partners.

This third edition has been specifically designed with water resource managers, water management associations, homeowners and customers and operators of aquatic plant management companies and districts in mind. The goal in preparing this handbook is to provide basic, scientifically sound information to assist decision makers with their water management questions.

BioOne VISTA is a monthly collection of recently published articles highlighting timely subjects and themes in the biological, ecological, and environmental sciences.

The September 2022 edition focuses on research in BioOne Complete about invasive and non-native plant species. Invasive species can be detrimental to ecosystems. Invasive plant species can change native plant communities, prevent forest regeneration, and even change the soil chemistry of an area. Understanding how non-native and invasive plants impact habitats around the world is an important step in combating the problems they present.

The BoatUS Foundation Grassrooots Grants Program provides grants to nonprofit organizations, boating clubs and student groups for projects that promote safe and/or clean boating. Previous grants have included outreach materials for aquatic invasive species awareness.

See also: Biocontrol Factsheets for more information on biocontrol agents

Calflora provides a specialized mapping platform for plant locations as a public service. This platform consists of a geospatial database, and a set of web applications and phone applications. While originally developed to track native plant populations, the platform has also been used to advantage to track non-native populations.

The Great Lakes Fishery Commission is now soliciting pre-proposals and pilot project proposals for the 2021 funding cycle. The deadline  was January 15, 2020. Proposals are evaluated for relevance and scientific merit and against information needs identified by the Research Themes under which they are submitted. Proposals are encouraged to be cross-cutting and address multiple themes. See the theme conceptual diagram [PDF, 172 KB] for examples of how themes may intersect. See Applying for Funding for more information.

National park philanthropy doesn't stop when it comes to trail and campground maintenance, science and research, or bringing inner-city youth to a park. Each year nearly $1.5 million from the National Park Foundation goes towards battling invasive species across the system.

See also: Invasive Exotic Plants for more publications

Choices is an online peer-reviewed magazine published by the Agricultural & Applied Economics Association (AAEA) for readers interested in the policy and management of agriculture, the food industry, natural resources, rural communities, and the environment

Fig Buttercup (Ficaria verna, formerly Ranunculus ficaria) is an early-blooming perennial with origins in Europe and northern Africa. It is also called Lesser Celandine, and it is sometimes confused with Marsh Marigold (Caltha palustris). More recently, its behavior has transitioned or is in the process of transitioning to that of an aggressive invasive species that threatens bottomlands throughout its adopted range. Even after its invasiveness was recognized, many people did not anticipate that it would behave invasively in the South, as it has begun to do. Be a Citizen Scientist— We are asking you to help us scout areas near you where it is likely to be found, so that emerging infestations can be documented, treated and monitored.