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IPA Factsheet - Anglesey Dunes
Site code
CountryUnited Kingdom
Administrative regionWales (Anglesey)
Central co-ordinates53o 9' N / 4o 23' W map
Altitude0 - 40

 Site Description The long lines of sand dunes at Anglesey have formed from wind blown sand, which was moved inland by the prevailing westerly winds. The dunes continually shift, although they are stabilised primarily by marram grass. The valleys of the dunes are known as ‘slacks’, which are rich, fertile areas, which support orchids, violets, creeping willow and clover. The rare species Shore Dock Rumex rupestris occurs along a small streambed and on damp pond edges.

 Botanical Significance Noted for habitat, stoneworts and vascular plant interest. Shore dock and petalwort have both been recorded on the site, and the stoneworts present in the dune slacks have been noted for their importance on a European scale. The dunes support a notable fungus flora.

 General Habitat Description About half of the IPA is covered by coniferous planting and the other half consists of sand dunes, saltmarsh and freshwater ponds.

Land use

Land use% CoverLevel
nature conservation and researchMinor

Threatened Species

Species NameIPA Assess.Species Assess.AbundanceData qualityCriteria
Rumex rupestris Le Gall20072007unknownunknownA(i), A(ii)

Botanical Richness

EUNIS level 2 code & nameIPA Assess.Habitat Assess.% of indicator speciesNo. SpeciesNational BiotopeData qualityCriteria
B1 Coastal dune and sand habitats2007200700unknownB

Threatened Habitats

IPA Habitat code & nameIPA Assess.Habitat Assess.AreaData qualityCriteria
2170 Dunes with Salix repens ssp. argentea (Salicion arenariea)200720040unknownCii
2110 Embryonic shifting dunes200720070unknownCii
2130* Fixed coastal dunes with herbaceous vegetation (grey dunes)*200720070unknownCi
2190 Humid dune slacks200720070unknownCii
2120 Shifting dunes along the shoreline with Ammophila arenaria (white dunes)200720070unknownCii


DesignationProtected Area NameRelationship with IPAOverlap with IPA
Site of Special Scientific InterestNewborough Warren - Ynys Llanddwynprotected area overlaps with IPA1280
Site of Special Scientific InterestTywy Aberffrawprotected area overlaps with IPA336
Special Area of ConservationGlannau Mon: Cors Heli / Anglesey Coast Saltmarshprotected area is adjacent to IPA4
Special Area of ConservationY Twyni o Aberffraw / Abermenai to Aberffraw Dunesprotected area overlaps with IPA1617
Site of Special Scientific InterestNewborough Warren – Ynys Llanddwynprotected area overlaps with IPA1285
Site of Special Scientific InterestPenrhynoedd Llangadwaladrprotected area is adjacent to IPA0
National Nature ReserveNewborough Warren and Ynys Llanddwyn National Resprotected area overlaps with IPA561
Area of Outstanding Natural BeautyYnys Mon / Angleseyprotected area contains IPA1622


TypeDescriptionYear startedYear finishes
Protected Area Management PlanAbermenai to Aberffraw Dunes SAC2008
Habitat Management PlanCoastal saltmarsh HAP2002
Habitat Management PlanCoastal sand dunes HAP2002
Species Management PlanRumex rupestris (Shore Dock) SAP2002
Species Management PlanPetalophyllum ralfsii (Petalwort) SAP2002


agricultural intensification/expansion (grazing)medium
abandonment/reduction of land managementhigh
climate change/ sea level risehigh
forestry (afforestation)high
habitat fragmentation/isolationmedium
consequences of invasive species (plant)low

 Conservation Issues

Contact Information

ContactContact Type
Cath ShellswellSite report compiler