Horizon scanning

Hazard identification is used to identify new non-native species threats.  In GB it is provided by horizon scanning undertaken by the Defra funded Non-native Species Information Portal project.

A horizon scanning exercise conducted in 2019 identified the top 30 non-native species likely to become invasive in Britain over the next ten years

  • Vespa velutina Asian hornet
  • Anoplophora glabripennis Asian longhorn beetle
  • Aedes japonicus Asian bush mosquito
  • Mnemiopsis leidyi Comb jelly
  • Gyrodactylus salaris Salmon fluke
  • Bellamya chinensis Chinese mystery snail
  • Myriophyllum heterophyllum Twoleaf water milfoil
  • Baccharis halimifolia Sea mrytle
  • Agrilus plannipennis Emerald ash borer
  • Celtodoryx ciocalyptoides Sponge
  • Aedes albopictus Tiger mosquito
  • Hemigrapsus sanguineus Asian shore crab
  • Corbicula fluminalis Clam
  • Procyon lotor Raccoon
  • Nyctereutes procyonoides Raccoon dog
  • Procambarus fallax Marbled crayfish
  • Halyomorpha halys Brown marmorated stink bug
  • Sicyos angulatus Oneseed bur cucumber
  • Mulinia lateralis Dwarf surf clam
  • Ips typographus European spruce bark beetle
  • Homarus americanus American lobster
  • Anoplophora chinensis Citrus long-horned beetle
  • Psittacula eupatria Alexandrine parakeet
  • Ocinebrellus inornatus Japanese oyster drill
  • Asterias amurensis Northern Pacific seastar
  • Ambrosia trifida Giant ragweed
  • Thaumetopoea pityocampa Pine processionary moth
  • Cephalothrix simula Nemertean worm (no common name)
  • Neogobius melanostomus Round goby
  • Tamias sibiricu Siberian chipmunk

Watch a webinar with Professor Helen Roy (external link) on the results of this exercise and for more information read the horizon scanning short report (PDF).

This list built on a previous horizon scanning exercise conducted in 2014 (external link) and two previous reports that helped to identify longer lists of horizon scanning horizon scanning plants (PDF) and  horizon scanning animals (PDF) in England.

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