Hottentot fig
Carpobrotus edulis
Status:
Established
Habitat:
Terrestrial
Threats:
Changes to dune environments.
Japanese knotweed
Fallopia japonica
Status:
Established
Habitat:
Terrestrial
Threats:
Reduction of species diversity.
Japanese Rose
Rosa rugosa
Status:
Established
Habitat:
Terrestrial
Threats:
Alters soil nutritrion, leading to altered native species biodiversity. May alter coastal landscape by forming sand dunes
Japanese skeleton shrimp
Caprella mutica
Status:
Established
Habitat:
Marine
Threats:
Reproduces quickly. Outcompetes native species.
Leathery sea squirt
Styela clava
Status:
Established
Habitat:
Marine
Threats:
Competes against native species for food and space. Fouls boats, oyster beds and moorings
Montbretia
Crocosmia X crocosmiiflora
Status:
Established
Habitat:
Terrestrial
Threats:
Outcompetes native species. Can cause streambank collapse if population is too high.
Muntjac deer
Muntiacus reevesi
Status:
Established
Habitat:
Terrestrial
Threats:
Preventing seed regeneration of important conservation species.
New Zealand flatworm
Arthurdendyus triangulatus
Status:
Established
Habitat:
Terrestrial
Threats:
Significant reduction of native earthworms.
New Zealand pigmyweed
Crassula helmsii
Status:
Established
Habitat:
Freshwater
Threats:
Competition with native species.
Invasive Species Ireland

Invasive Species Ireland