London Invasive Species

Records of species that are known to be invasive non-natives, as defined by the London Invasive Species Initiative (LISI), are highlighted as such within our database. These are species that have potential impact and control issues.

For more information, see the LISI website or our newsletter article. For more detailed guidance about status descriptions and what they mean see our data guide in the policies section.

Information is based on the following statuses:

  • Schedule 9 of the Wildlife and Countryside Act 1981
  • The UK Water Framework Directive Technical Advisory Group’s invasive species list
  • LISI expert knowledge