Aggressive Ameisen, giftiger Bärenklau – Sind eingeschleppte Arten immer ein Problem?

Menschen haben viele Tier- und Pflanzenarten aus anderen Weltgegenden nach Deutschland gebracht. Manche wurden hier heimisch, die meisten davon haben sich reibungslos in die Ökosysteme eingefügt, gefährlich sind nur wenige.  

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What Counts as Wild? - Island in the Net

Merlin called them Red Junglefowl. iNaturalist called them Domestic Chicken. The bird didn’t change — just the taxonomy each platform was willing to accept.

Ces espèces exotiques qui étouffent la biodiversité de La Réunion

Quelles sont les espèces végétales invasives qui menacent le patrimoine naturel de l’île, pourquoi sont-elles arrivées là, que mettre en place pour les contenir ? Tour d’horizon en images.

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As New England waters warm, invasive sea squirts move in

Researchers say they're seeing more of these colorful blobs growing on docks, but they're not the only invasive marine species that could be spreading along New England coasts. And climate change may be partly to blame.

Shadowy exotic pet trade thrives in Pacific island nation

The Pacific's Solomon Islands has become a key player in the global live animal trade, with foreign collectors sourcing exotic species including some subject to trade bans, an AFP investigation has found.

'Not every exotic species needs to be controlled' | Radboud University

Certain invasive exotic species, such as the red swamp crayfish, are harmful to our environment because they transmit crayfish plague to native species. But there are also non-native fish and crayfish that are not harmful.