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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

Rivers

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