invasive species News

  • What are the impacts of invasive alien species?

    The impacts of invasive alien species (IAS) can take many different forms, from ecological to socio-economic. A new review investigates how to define and quantify ‘impact’ and discusses the most successful strategies to reduce invasion risk and prevent different impacts. Biological invasions can substantially degrade ecosystems and IAS are listed among the primary causes of global ...

  • Group sues EPA over invasive species regulations

    An environmental group said Wednesday it has sued the federal government, contending that recently established regulations for ships to treat ballast water before releasing it into U.S. waterways aren't strong enough to prevent more aquatic species invasions. The National Wildlife Federation's lawsuit asks a federal appeals court to rule that the U.S. Environmental Protection Agency failed to ...


    By Associated Press

  • Time to unite invasive alien species management in Europe?

    Recent evidence suggests that Europe is home to more than 11,000 alien species. The rate of establishment of alien species is rapidly increasing. A new study summarises available information in this area and proposes that Europe unites its fragmented activities by establishing a single body to manage this ever-increasing problem more effectively. Every year, tens of new plant and animal species ...

  • Can US eliminate invasive species by eating them?

    It seems like a simple proposition: American lakes, rivers and offshore waters are filling up with destructive fish and crustaceans originally from other parts of the world, many of them potential sources of food. So why not control these invasive populations by getting people to eat them? The idea has gained momentum recently from the lionfish, which invaded the Gulf of Mexico but was ...


    By Associated Press

  • North America works to halt invasive species

    Economic losses and the environmental impact caused by invasive species exceed $100 billion dollars annually in the United Stated alone. An example of this impact is the zebra mussel, which has caused nearly $ 1 billion in damages, according to a New York Sea Grant report. In southwest Mexico, the unintentional introduction of a innovative fish species, the armored catfish, or plecostomus, in ...

  • European Parliament approves Invasive Alien Species regulation

    Wetlands International and the Wildfowl & Wetlands Trust welcome today’s adoption by the European Parliament of a new Regulation to address the impacts of invasive alien species on EU biodiversity. The European Parliament has approved a new Regulation on the prevention and management of the introduction and spread of invasive alien species. Invasive alien species are one of the biggest ...


    By Wetlands International

  • State invasive species programs require federal support

    The Environmental Law Institute and the Union of Concerned Scientists announce the publication of Status and Trends in State Invasive Species Policy: 2002-2009. The new report reviews developments in state laws and regulations governing invasive species in eleven states. It finds that invasive species laws and regulations are often fragmented and incomplete and have developed primarily on a ...

  • Endangered species’ response to the dual threat of climate change and invasive species

    The joint threat posed by climate change and invasive alien species can have different effects on endangered native species, new research suggests. This European study predicts that the invasive zebra mussel may benefit from climate change, negatively affecting native mussel populations; but both invasive and native crayfish could suffer declines. Although climate change and invasive species are ...

  • Conservation managers and public unaware of invasive alien species’ true risks

    Neither the public nor conservation managers are fully aware of the different risks posed by invasive alien species (IAS), new research suggests. A study examining perceptions of five invasive species in the UK shows that both conservation managers and the public regard some highly damaging species as low risk’, and that their awareness does not increase with the amount of scientific ...

  • Does the public’s view of invasive alien species differ from the professionals’?

    Key differences between public and professional opinions on invasive alien species (IAS) are highlighted by a recent UK study. Its authors recommend clearer, open discussion of the harm caused by IAS and human responsibility for their spread. Understanding public opinion regarding IAS is vital; in the past, public response to proposed IAS management has delayed action, occasionally even to the ...

  • Socio-economic factors affect risk of alien species invasion

    Omitting socio-economic factors from invasive alien species (IAS) risk assessments could result in serious underestimations of the area at risk, new research suggests. Including factors such as population density and proximity to ports in risk assessments was found in this UK study to increase the size of the area predicted as suitable for invasion by up to six times. Species distribution models ...

  • ENSR prepares invasive plant species manual for AWWA research foundation and EPA

    ENSR has prepared a new water resources manual that details current strategies for combating the spread of invasive milfoil species in U.S. drinking water supplies. Milfoil refers to species of freshwater aquatic plants which degrade the water quality and ecological habitat in drinking-water reservoirs. ENSR, part of AECOM, is a leading global environmental and water resource management ...


    By AECOM

  • EPA Awards 21 Grants to Combat Invasive Species in the Great Lakes Basin

    The U.S. Environmental Protection Agency today announced 21 Great Lakes Restoration Initiative (GRLI) grants totaling nearly $8 million for projects to combat invasive species in the Great Lakes basin in Illinois, Indiana, Michigan, Minnesota, New York, Ohio and Wisconsin. “These EPA grants will prevent the spread of invasive species, increase the accuracy of early detection techniques, and ...

  • Pollution, Invasive Species Plague Great Lakes National Parks

    CHICAGO, Illinois, October 11, 2007 (ENS) - Sleeping Bear Dunes National Lakeshore on Lake Michigan is in danger of being loved to death. High numbers of visitors are trampling down vegetation and erosion is occurring in high traffic areas. Water quality and the ecological integrity of Lake Michigan at the Dunes is in poor condition due to invasive species such as quagga and zebra mussels, ...

  • Choosing between established and innovative policy measures: controlling invasive species

    Assessing the potential of new environmental management tools often brings an ‘innovation dilemma’: is it better to stick with what is known to work, or to implement new measures that are potentially more effective, but also more uncertain? Researchers have proposed an approach to deal with these dilemmas, and applied it to the case study of an invasive species programme in the US. ...

  • Risks of invasion of alien marine species driven by global shipping

    New research has identified global hot spots of invasion risk by marine species transported in the ballast water of shipping. Treating this water before discarding it could reduce the risk of invasions by as much as 82%, the researchers predict. The movement of marine organisms outside their natural ranges can have seriously damaging effects on native ecosystems. Increased trade and transport at ...

  • Effective tools to predict spread and improve monitoring of invasive alien species

    Effective surveillance and risk analysis are key to preventing the ecological damage caused by invasive alien species (IAS). Habitat suitability models provide highly effective tools for predicting the spread of IAS and guiding monitoring strategies, new research suggests. Along with habitat loss, IAS are a serious threat to European biodiversity, displacing native species and causing the ...

  • Invasive species: monitoring system aims to protect vulnerable Antarctic

    Better monitoring is needed to safeguard the Antarctic against threats posed by invasive alien species, according to a new study. The authors developed ‘the Antarctic Biological Invasions Indicator’ (ABII) to help generate data for tracking trends in alien invasions and the measures taken to prevent them. Invasive alien species are a leading threat to biodiversity. Currently, there ...

  • National Invasive Species Awareness Week to Focus on Prevention and Management Strategies

    The Weed Science Society of America (WSSA) is among a broad coalition of public and private stakeholders gathering in the nation’s capital March 3-8 for National Invasive Species Awareness Week. The agenda will focus on how to best prevent and manage unwanted invaders. “Invasive species are increasingly degrading wildlands and aquatic habitats, reducing land values and eroding our economic ...


  • Invasive alien species’ impacts on ecosystem services: new tool to assess risks

    Researchers have developed a new risk assessment scheme for invasive alien species that not only predicts their direct effects on biodiversity, but also their impacts on ecosystem services. Furthermore, the scheme allows sources of uncertainty in a species’ impact to be identified, and can be applied to a range of different species. Invasive alien species are one of the greatest threats to ...

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