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Examples of Invasive Alien Species

  • Native to the Caspian and Black Seas, Zebra mussels (Dreissena polymorpha) affect fisheries, mollusc diversity, and electric power generation in the Great Lakes in North America and Mississippi basin

  • Native to the Amazon basin, water hyacinth (Eichhornia crassipes) has invaded tropical habitats worldwide spreading to more than 50 countries on five continents. Water hyacinth blocks waterways, decimates aquatic wildlife and the livelihoods of local people and creates ideal conditions for disease and its vectors

  • Native to the Indian sub-continent, the ship rat (Rattus rattus) have caused extinctions and catastrophic declines of native birds on islands and have spread throughout the world

  • Deadly new disease organisms, such as avian influenza A (H5N1), attack humans and animals, in both temperate and tropical countries

  • Aquatic invasive species have done serious damage. A unique approach using music as a medium to help prevent the spread of aquatic invasive species in lakes and rivers is being used in Wisconsin (USA).

  • More examples

   
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Harmonia axyridis (Harlequin ladybird)
Miconia calvescens (Purple plague or cancer vert)
Impatiens glandulifera (Himalayan balsam)
Ailanthus altissima (Chinese sumac)
Elaeagnus angustifolia (oleaster)
Ambrosia artemisiifolia
Felis catus (domestic cat)
Cyprinus carpio (Carp)
Anoplophora glabripennis (Asian longhorn beetle)
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  • United Nations
  • United Nations Environment Programme