An official website of the United States government.

The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely.

Home / Invasive Species Resources

Invasive Species Resources

Provides access to all site resources (alphabetically), with the option to search by species common and scientific names. Resources can be filtered by Subject, Resource Type, Location, or Source.

Displaying 1 to 20 of 42

Search Help
European Union. European Centre for Disease Prevention and Control.
United Kingdom Department for Environment, Food & Rural Affairs.
European Food Safety Authority.
Department for Environment Food and Rural Affairs (United Kingdom).
See also: Pest and Disease Factsheets for more fact sheets.

Mediterranean Science Commission.

European Alien Species Information Network.

Close to 7,000 different species are owned by pet owners across Europe, including mammals, birds, reptiles, amphibians, fish. Some of these pet species are imported from outside Europe and can potentially cause ecological problems if they escape or are released in the environment. The importation of some invasive alien species is prohibited (Council Regulation (EC) 338/97 (PDF | 3.78 MB)) due to their invasive character and the fact that their introduction has an adverse impact on native species. In addition, the Council of Europe has designed a voluntary code of conduct (PDF | 1.92 MB) to raise awareness within the pet industry and among owners and keepers of pets and provide practical guidance to reduce further the chances of pet species becoming invasive in Europe.

Ministry of Environment and Food of Denmark.
Környezetvédelmi és Vízügyi Minisztérium (Ministry of Environmental Protection and Water Resources, Hungary); National Ecological Network.

National Biodiversity Data Centre (Ireland).

National Biodiversity Data Centre (Ireland).

National Biodiversity Data Centre (Ireland).

Barbados Government Information Service.

Invasive alien species, such as the Giant African Snail, the Lionfish and rats, are threats and can impact negatively on small island developing states such as those in the Caribbean, which are widely recognized as biodiversity hotspots. Minister of Environment and National Beautification, Trevor Prescod, pointed this out today, as he delivered the feature address at the Regional Inception Workshop for the “Preventing Costs of Invasive Alien Species (IAS) in Barbados and the Organisation of Eastern Caribbean States” Project. The workshop will seek to finalize project work plans and budgets; to approve year one work plans and budgets and to understand the United Nations Environment Programme and Centre for Agriculture and Biosciences International financial rules governing the project execution. It will also seek to understand monitoring and evaluation procedures and targets for the project, towards helping Barbados and other OECS countries manage and combat the adverse effects of IAS.

Cayman Islands Government. Department of Environment.

Cornwall County Council (United Kingdom).

Department for Environment Food and Rural Affairs (United Kingdom).

See also: Pest and Disease Factsheets for more fact sheets.

European Commission.

The EU Regulation on invasive alien species entered into force on 1 January 2015. At its core is this list of invasive alien species of Union concern, which has been drawn up on the basis of strict criteria and scientifically robust risk assessments, and approved by a Committee of Member State representatives.

European Commission. Joint Research Centre.

The JRC has developed a smartphone app that will help citizens to capture and share information about 37 invasive alien species of Union concern in Europe. The 'Invasive Alien Species Europe' app (iOS version), which contains detailed information and photos of those plants and animals, makes it possible for citizens to use their phones' GPS system and camera to capture images of them.

European Alien Species Information Network.

A newly developed index identifies areas of the Mediterranean Sea which are most affected by non-native, invasive alien species introduced through the Suez Canal, by aquaculture or through shipping. The top invaders appear to be algae, according to the JRC study. The Cumulative Impact of Invasive Alien species (CIMPAL) index calculation brings together datasets on IAS distribution with literature information on the impacts of IAS on biodiversity.

Forestry Commission (United Kingdom). Forest Research.

Forestry Commission (United Kingdom). Forest Research.