Brown bullhead catfish
Ameiurus nebulosus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish species.
Brown or European Hare
Lepus europaeus
Status:
Established
Habitat:
Terrestrial
Threats:
Hybridises with native hare species. Has a broad diet.
Brown rat
Rattus norvegicus
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on native flora and fauna.
Brush-clawed shore crab
Hemigrapsus takanoi
Status:
Potential
Habitat:
Marine
Threats:
High reproductive capacity. Outcompete native crabs.
Butterfly bush
Buddleja davidii
Status:
Established
Habitat:
Terrestrial
Threats:
Forms monocultures. Reproduces sexually and asexually. Displaces native species.
Canadian waterweed
Elodea canadensis
Status:
Established
Habitat:
Freshwater
Threats:
Creates single species stands. Outcompetes native plants. Reduces waterflow.
Carpet sea squirt
Didemnum vexillum
Status:
Established
Habitat:
Marine
Threats:
Alter marine habitats.
Chinese bushclover
Lespedeza juncea var. sericea
Status:
Potential
Habitat:
Terrestrial
Threats:
Outcompetes native species
Chinese mitten crab
Eriocheir sinensis
Status:
Potential
Habitat:
Freshwater
Threats:
Threatens ecosystem functioning and protected species.
Invasive Species Ireland

Invasive Species Ireland