Habitats list
This table provides a list of Annex I habitat types which occur in the UK
and for which one or more SAC is designated.
A list of habitats and species
which have priority status (a priority habitat or species is one in danger of
disappearance and for which there is a particular responsibility to conserve)
is available via
The National Archives.
| Marine, coastal and halophytic habitats | No. of SACs |
|---|
| 1110 Sandbanks which are slightly covered by sea water all the time | 36 |
| 1130 Estuaries | 18 |
| 1140 Mudflats and sandflats not covered by seawater at low tide | 30 |
| 1150 Coastal lagoons | 20 |
| 1160 Large shallow inlets and bays | 14 |
| 1170 Reefs | 59 |
| 1180 Submarine structures made by leaking gases | 3 |
| 1210 Annual vegetation of drift lines | 13 |
| 1220 Perennial vegetation of stony banks | 12 |
| 1230 Vegetated sea cliffs of the Atlantic and Baltic coasts | 40 |
| 1310 Salicornia and other annuals colonising mud and sand | 13 |
| 1320 Spartina swards (Spartinion maritimae) | 2 |
| 1330 Atlantic salt meadows (Glauco-Puccinellietalia maritimae) | 26 |
| 1340 Inland salt meadows | 1 |
| 1420 Mediterranean and thermo-Atlantic halophilous scrubs (Sarcocornetea fruticosi) | 4 |
| Coastal sand dunes and continental dunes | No. of SACs |
|---|
| 2110 Embryonic shifting dunes | 24 |
| 2120 Shifting dunes along the shoreline with Ammophila arenaria ('white dunes') | 34 |
| 2130 Fixed dunes with herbaceous vegetation ('grey dunes') | 33 |
| 2140 Decalcified fixed dunes with Empetrum nigrum | 2 |
| 2150 Atlantic decalcified fixed dunes (Calluno-Ulicetea) | 10 |
| 2160 Dunes with Hippophae rhamnoides | 2 |
| 2170 Dunes with Salix repens ssp. argentea (Salicion arenariae) | 14 |
| 2190 Humid dune slacks | 26 |
| 21A0 Machairs | 8 |
| 2250 Coastal dunes with Juniperus spp. | 2 |
| 2330 Inland dunes with open Corynephorus and Agrostis grasslands | 1 |
| Freshwater habitats | No. of SACs |
|---|
| 3110 Oligotrophic waters containing very few minerals of sandy plains (Littorelletalia uniflorae) | 4 |
| 3130 Oligotrophic to mesotrophic standing waters with vegetation of the Littorelletea uniflorae and/or of the Isoëto-Nanojuncetea | 47 |
| 3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. | 15 |
| 3150 Natural eutrophic lakes with Magnopotamion or Hydrocharition-type vegetation | 16 |
| 3160 Natural dystrophic lakes and ponds | 23 |
| 3170 Mediterranean temporary ponds | 1 |
| 3180 Turloughs | 2 |
| 3260 Water courses of plain to montane levels with the Ranunculion fluitantis and Callitricho-Batrachion vegetation | 23 |
| Temperate heath and scrub | No. of SACs |
|---|
| 4010 Northern Atlantic wet heaths with Erica tetralix | 72 |
| 4020 Temperate Atlantic wet heaths with Erica ciliaris and Erica tetralix | 4 |
| 4030 European dry heaths | 117 |
| 4040 Dry Atlantic coastal heaths with Erica vagans | 1 |
| 4060 Alpine and Boreal heaths | 33 |
| 4080 Sub-Arctic Salix spp. scrub | 15 |
| Sclerophyllous scrub (matorral) | No. of SACs |
|---|
| 5110 Stable xerothermophilous formations with Buxus sempervirens on rock slopes (Berberidion p.p.) | 1 |
| 5130 Juniperus communis formations on heaths or calcareous grasslands | 17 |
| Natural and semi-natural grassland formations | No. of SACs |
|---|
| 6130 Calaminarian grasslands of the Violetalia calaminariae | 20 |
| 6150 Siliceous alpine and boreal grasslands | 29 |
| 6170 Alpine and subalpine calcareous grasslands | 15 |
| 6210 Semi-natural dry grasslands and scrubland facies: on calcareous substrates (Festuco-Brometalia), ( note that this includes the priority feature "important orchid rich sites"). | 59 |
| 6230 Species-rich Nardus grassland, on siliceous substrates in mountain areas (and submountain areas in continental Europe) | 22 |
| 6410 Molinia meadows on calcareous, peaty or clayey-silt-laden soils (Molinion caeruleae) | 33 |
| 6430 Hydrophilous tall herb fringe communities of plains and of the montane to alpine levels | 28 |
| 6510 Lowland hay meadows (Alopecurus pratensis, Sanguisorba officinalis) | 5 |
| 6520 Mountain hay meadows | 2 |
| Raised bogs and mires and fens | No. of SACs |
|---|
| 7110 Active raised bogs | 54 |
| 7120 Degraded raised bogs still capable of natural regeneration | 33 |
| 7130 Blanket bogs | 77 |
| 7140 Transition mires and quaking bogs | 41 |
| 7150 Depressions on peat substrates of the Rhynchosporion | 32 |
| 7210 Calcareous fens with Cladium mariscus and species of the Caricion davallianae | 13 |
| 7220 Petrifying springs with tufa formation (Cratoneurion) | 17 |
| 7230 Alkaline fens | 49 |
| 7240 Alpine pioneer formations of the Caricion bicoloris-atrofuscae | 15 |
| Rocky habitats and caves | No. of SACs |
|---|
| 8110 Siliceous scree of the montane to snow levels (Androsacetalia alpinae and Galeopsietalia ladani) | 29 |
| 8120 Calcareous and calcshist screes of the montane to alpine levels (Thlaspietea rotundifolii) | 11 |
| 8210 Calcareous rocky slopes with chasmophytic vegetation | 35 |
| 8220 Siliceous rocky slopes with chasmophytic vegetation | 33 |
| 8240 Limestone pavements | 11 |
| 8310 Caves not open to the public | 6 |
| 8330 Submerged or partially submerged sea caves | 17 |
| Forests | No. of SACs |
|---|
| 9120 Atlantic acidophilous beech forests with Ilex and sometimes also Taxus in the shrublayer (Quercion robori-petraeae or Ilici-Fagenion) | 7 |
| 9130 Asperulo-Fagetum beech forests | 11 |
| 9160 Sub-Atlantic and medio-European oak or oak-hornbeam forests of the Carpinion betuli | 2 |
| 9180 Tilio-Acerion forests of slopes, screes and ravines | 48 |
| 9190 Old acidophilous oak woods with Quercus robur on sandy plains | 7 |
| 91A0 Old sessile oak woods with Ilex and Blechnum in the British Isles | 71 |
| 91C0 Caledonian forest | 12 |
| 91D0 Bog woodland | 17 |
| 91E0 Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae) | 36 |
| 91J0 Taxus baccata woods of the British Isles | 13 |
