Over 2,000 plants and animals have been introduced to Britain from all over the world by people. These are known as non-native species. Most are harmless, but around 10-15% spread and become invasive non-native species which harm wildlife and the environment, are costly to the economy and can even impact on our health and way of life.
These pages provide further information and resources on non-native species.
Species information
- View a list of species alerts to look out for and record
- Visit the Information Portal for information on non-native species that have been recorded in Britain
Other resources
- Learn more about risk analysis and view risk assessments for over 100 non-native species, as well as information on horizon scanning and risk management
- View the latest contingency plans to facilitate rapid and effective action.
- Visit the gallery for images of non-native species, biosecurity and management that are available for use.
- View identification sheets for over 60 non-native species.
- Find resources on management of some of the most common invasive non-native species.