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 2014 identified the top 30 non-native species likely to become invasive in Britain. At the time of the exercise none of these species were established.

  • Dreissena bugensis, Quagga Mussel
  • Anoplophora glabripennis, Asian Longhorned Beetle
  • Hemigrapsus sanguineus, Asian Shore Crab
  • Hemigrapsus takanoi, Brush-clawed shore crab
  • Homarus americanus, American Lobster
  • Myriophyllum heterophyllum, Two Leaf Watermilfoil
  • Neogobius melanostomus, Round Goby
  • Procyon lotor, Raccoon
  • Threskiornis aethiopicus, Sacred Ibis
  • Vespa velutina, Asian Hornet [detected and nest eradicated Sept 2016]
  • Baccharis halimifolia, Sea Myrtle, Saltbush
  • Corbicula fluminalis, Asian Clam
  • Corvus splendens, Indian house crow
  • Echinogammarus trichiatus, The Curly Haired Urchin Shrimp
  • Linepithema humile, Argentine Ant
  • Mnemiopsis leidyi, American comb jelly
  • Nasella neesiana, Chilean Needle Grass
  • Proterorhinus marmoratus, Tubenose goby
  • Rapana venosa, Veined rapa whelk
  • Thaumetopoea pityocampa, Pine processionary moth
  • Gracilaria vermiculophylla, Rough agar weed
  • Agrilus planipennis, Emerald Ash Borer
  • Celtodoryx ciocalyptoides, A sponge
  • Dryocosmus kuriphilus, Oriental Chestnut Gall Wasp
  • Echinogammarus ischnus, Bald urchin shrimp
  • Gyrodactylus salaris, Salmon fluke
  • Microstegium vimineum, Japanese Stiltgrass
  • Nycteureutes procyonoides, Raccoon Dog
  • Ocenebra inornata, Japanese sting winkle
  • Tamias sibiricus, Siberian Chipmunk

The above list builds on two previous reports that helped to identify longer lists of horizon scanning plants and  animals in England.


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