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Environmental professionals

Invasive non-native species are one of the top threats to global biodiversity, cost the economy almost £2 billion a year, and can even impact on our health and the way we live. A small plant fragment, egg or animal can be enough to start a new invasion and can easily be spread on damp clothing, footwear, vehicles and equipment used in the field.

The following resources are freely available to anyone looking to learn more or teach others about non-native species, how to identify them, and how to prevent their spread:

Online training

Take free e-learning on non-native species (external link). Available modules include:

  • an introduction to non-native species
  • identification and recording
  • identification of key freshwater plants
  • identification of key freshwater invertebrates
  • identification of key riparian plants
  • biosecurity

Identification and recording


Watch a video for contractors working in or around water from the Canal & River Trust (external link), with guidance on Check Clean Dry and biosecurity:


Further training and advice