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Non-Native Invasive Species

Along with climate change and habitat loss, non-native invasive species are one of the biggest threats to biodiversity in the Suffolk & Essex Coast & Heaths National Landscape, the rest of the UK and globally.

The direct costs of non-native invasive species have been estimated to be approximately 5% of global GDP* with an estimated cost of £1.8 billion per year to the UK economy**.

Non-native invasive species are causing problems for wildlife and people in the Suffolk & Essex Coast & Heaths National Landscape in the following ways:

  1. They out-compete native species
  2. They directly predate on native species
  3. They bring disease
  4. They damage habitats and infrastructure
  5. They cause huge socio-economic costs

There are a number of non-native invasive species that are a cause for concern in the Suffolk & Essex Coast & Heaths National Landscape.

They have been particularly problematic in freshwater, coastal and estuarine habitats. Find out more about the most problematic species.

American Signal Crayfish


Sea plant

Coast and Estuaries

* The Economic Cost of Invasive Non-Native Species on Great Britain – Nov 2010 / CABI

** House of Commons Environmental Audit Committee – Invasive Species – First Report of Session 2019