Invasive Species Northern Ireland

Parrots feather

Myriophyllum aquaticum

Status:

Established

Habitat:

Freshwater

Threats:

Competition with native macrophytes. Clogging of waterways.

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Pirri-pirri bur

Acaena spp.

Status:

Established

Habitat:

Terrestrial

Threats:

Displaces native species

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Quagga mussel

Dreissena rostriformis bugensis

Status:

Established

Habitat:

Freshwater

Threats:

Fouling, negative impacts on native species and local extinction of unionids.

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Red-eared, yellow-bellied and Cumberland sliders

Trachemys scripta spp.

Status:

Established

Habitat:

Freshwater

Threats:

It disturbs aquatic habitats and poses a human health risk, being a possible reservoir for salmonella

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Rhododendron

Rhododendron ponticum

Status:

Established

Habitat:

Terrestrial

Threats:

Competition with native plants.

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Roe deer

Capreolus capreolus

Status:

Established

Habitat:

Terrestrial

Threats:

Overgrazing and trampling on vegetation, preventing regeneration of woodland.

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Ruddy duck

Oxyura jamaicensis

Status:

Established

Habitat:

Terrestrial

Threats:

Negative impacts on the survival of the White-headed duck.

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Russian vine

Fallopia baldschuanica

Status:

Established

Habitat:

Terrestrial

Threats:

Outcompetes native species.

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Salmonberry

Rubus spectabilis

Status:

Established

Habitat:

Terrestrial

Threats:

Forms dense thickets and displaces native biodiversity

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