Invasive alien species: a growing problem for environment and health

EEA Technical reports No 15/2012 and 16/2012

Invasive alien species pose greater risks than previously thought for biodiversity, human health and economies, according to two new reports from the European Environment Agency (EEA).

Teaser: Invasive alien species: a growing problem for environment and health

An alien or non-native species is an organism which humans have introduced –intentionally or accidentally -outside its previous range. It is deemed ‘invasive’ if it has negative effects on its surroundings, for example by outcompeting or predating on native species that have evolved without specific adaptations to cope with them. In such cases populations of native species can be devastated. Evidence shows that in a growing number of cases invasive alien species even cause harm to human health and society.

There are more than 10 000 alien species present in Europe, and the rate of new introductions has accelerated and is still increasing. At least 15 % of these alien species are known to have a negative ecological or economic impact. However, non-native species – for example, some food crops – can also have huge benefits.

The first report, The impacts of invasive alien species in Europe, details the effects and spread of some species. The second report, Invasive alien species indicators in Europe discusses the methodological approach in bringing this data together.

Download reports:
> The impacts of invasive alien species in Europe
> Invasive alien species indicators in Europe

Quelle: European Environment Agency EEA

Kategorien

  • Auswirkung
  • Auswirkungen der Klimaänderung
  • Biosphäre
  • Invasive Organismen
  • Klimaeffekte
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