Invasive Species Ireland

Cotoneaster

Cotoneaster spp.

Status:

Established

Habitat:

Terrestrial

Threats:

Outcompetes native species. Easily spread.

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Coypu

Myocastor coypus

Status:

Potential

Habitat:

Terrestrial

Threats:

Riparian, wetland habitats destruction

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Crayfish plague

Aphanomyces astaci

Status:

Potential

Habitat:

Freshwater

Threats:

Destruction of the native White - Clawed Crayfish population

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Crimson fountaingrass

Pennisetum setaceum

Status:

Potential

Habitat:

Terrestrial

Threats:

It can readily outcompete native plants with important negative impact on vulnerable native species. It is also inflammable.

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Curly waterweed

Lagarosiphon major

Status:

Established

Habitat:

Freshwater

Threats:

Significant changes to the ecology of the invaded habitat for native plants, insects and fish.

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Dace

Leuciscus leuciscus

Status:

Potential

Habitat:

Freshwater

Threats:

Negative impacts on native salmonids.

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Devil’s tongue weed

Grateloupia turuturu

Status:

Established

Habitat:

Marine

Threats:

Outcompetes native species. Can survive in a wide range of habitats.

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Eastern baccharis

Baccharis halimifolia

Status:

Potential

Habitat:

Terrestrial

Threats:

The shrub can grow into dense impenetrable thickets that choke all other native vegetation. EU Species of Union Concern.

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Egyptian goose

Alopochen aegyptiacus

Status:

Potential

Habitat:

Terrestrial

Threats:

Hybrisation with goose and duck species. Disease vector. Overgrazing. Outcompetes native fauna.

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