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IPA Factsheet - NW Anglesey Heaths and Seacliffs
Site code
CountryUnited Kingdom
Administrative regionWales (Anglesey)
Central co-ordinates53o 18' N / 4o 41' W map
Altitude0 - 220

 Site Description The cliffs of Holy Island, off the Anglesey coast of north-west Wales, support important examples of coastal cliff heathland vegetation. In addition to maritime heath with several rare species such as spotted rock-rose, there are extensive maritime cliff-crevice and grassland communities.

 Botanical Significance Crit A Vascular plant interest: Tephroseris integrifolia spp maritima.

 General Habitat Description European dry heaths; Vegetated sea cliffs of the Atlantic and Baltic coasts: Includes Glaswelltiroedd Cefn Cribwr/ Cefn Cribwr Grasslands Molinia meadows on calcareous, peaty or clayey-silt-laden soils (Molinion caeruleae)

Land use

Land use% CoverLevel
agriculture (animals)Minor
nature conservation and researchMajor

Threatened Species

Species NameIPA Assess.Species Assess.AbundanceData qualityCriteria
Tephroseris integrifolia ssp. maritima (Syme) Nordenstam20072007unknownunknownA(iii)

Botanical Richness

EUNIS level 2 code & nameIPA Assess.Habitat Assess.% of indicator speciesNo. SpeciesNational BiotopeData qualityCriteria

Threatened Habitats

IPA Habitat code & nameIPA Assess.Habitat Assess.AreaData qualityCriteria
4030 European dry heaths200720070unknownCii
1230 Vegetated sea cliffs of the Atlantic and Baltic coasts200720070unknownCii


DesignationProtected Area NameRelationship with IPAOverlap with IPA
Site of Special Scientific InterestGlannau Ynys Gybi - Holy Island Coastprotected area contained by IPA395
Site of Special Scientific InterestTre Wilmotprotected area overlaps with IPA63
Site of Special Scientific InterestPorth Dianaprotected area contained by IPA1
Site of Special Scientific InterestGlannau Rhoscoly protected area contained by IPA144
Special Area of ConservationGlannau Ynys Gybi / Holy Island Coastprotected area contained by IPA459
Special Protection AreaGlannau Ynys Gybi / Holy Island Coastprotected area contained by IPA603
Site of Special Scientific InterestRhoscolyn Reedbedprotected area is adjacent to IPA0
Area of Outstanding Natural BeautyYnys Mon / Angleseyunknown0


TypeDescriptionYear startedYear finishes
Species Management PlanTephroseris integrifolia spp. maritima
Protected Area Management PlanGlannau Ynys Gybi SAC and SPA2008
Habitat Management PlanMaritime Cliffs and Slopes HAP2002
Habitat Management PlanLowland Heathland HAP2002
Species Management PlanJuniperus communis (Juniper) SAP2002
Species Management PlanPilularia globulifera (Pillwort) SAP2002


agricultural intensification/expansion (grazing)medium
abandonment/reduction of land managementhigh
habitat fragmentation/isolationhigh
intrinsic species factors (slow growth, density)low

 Conservation Issues

Contact Information

ContactContact Type
Cath ShellswellSite report compiler