EUNIS habitat classification 2017 > N - Coastal habitats > N1 - Coastal dunes and sandy shores > N1H - Atlantic and Baltic moist and wet dune slack

Atlantic and Baltic moist and wet dune slack

Description (English)

Dune slacks develop in Atlantic and Baltic dune systems as moist-wet depressions between dune ridges. Primary slacks originate from the development of the beach-dune-slack-system, while secondary slacks occur where blow-outs have lowered the sand level of dune systems to that of groundwater or, unusually in the Wadden Sea, where parts of barrier islands are occasionally flooded by tidal inundation (so-called

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type	code N1H
Relation to	Resolution 4 habitat type (used for designation of Emerald sites)

Legal status

Relation to other habitat types mentioned in legal instruments

Legal text	Annex	Name in legal text	Code in legal text	Habitat type relationship	More information
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Humid dune slacks	2190	Narrower	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Machairs (* in Ireland)	21A0	Overlap	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]
Convention on the conservation of European wildlife and natural habitats	Revised Annex I of Resolution 4 (1996) of the Bern Convention on endangered natural habitats types using the EUNIS habitat classification (year of revision 2010)	Moist and wet dune slacks	B1.8	Narrower	https://wcd.coe.int/ViewDoc....ckColorLogged=FDC864 Resolution No. 4 (1996) of the Bern Convention lists endangered natural habitats requiring specific conservation measures [and the designation of Areas of Special Conservation Interest (ASCIs) forming the Emerald network]

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Indicator species

Diagnostic species

Constant species

Dominant species

Flowering Plants Salix repens

Flowering Plants Hydrocotyle vulgaris

Diagnostic species occur concentrated in the habitat in question, but are absent or rare in other habitats. They are good positive indicators of the habitat, but they do not need to occur in every location of the habitat.

Species scientific name	English common name	Species group
Salix repens		Flowering Plants
Hydrocotyle vulgaris		Flowering Plants

Flowering Plants Agrostis stolonifera

Flowering Plants Holcus lanatus

Flowering Plants Salix repens

Flowering Plants Phragmites australis

Flowering Plants Festuca rubra

Flowering Plants Trifolium repens

Flowering Plants Hydrocotyle vulgaris

Flowering Plants Mentha aquatica

Flowering Plants Carex flacca

Mosses & Liverworts Calliergonella cuspidata

Flowering Plants Carex nigra

Flowering Plants Lotus corniculatus

Flowering Plants Juncus articulatus

Flowering Plants Carex arenaria

Flowering Plants Ranunculus repens

Flowering Plants Plantago lanceolata

Flowering Plants Galium palustre

Flowering Plants Anthoxanthum odoratum

Flowering Plants Prunella vulgaris

Constant species occur frequently in the habitat, but they may include generalist species that are also frequent in other habitats.

Species scientific name	English common name	Species group
Agrostis stolonifera		Flowering Plants
Holcus lanatus		Flowering Plants
Salix repens		Flowering Plants
Phragmites australis		Flowering Plants
Festuca rubra		Flowering Plants
Trifolium repens		Flowering Plants
Hydrocotyle vulgaris		Flowering Plants
Mentha aquatica		Flowering Plants
Carex flacca		Flowering Plants
Calliergonella cuspidata		Mosses & Liverworts
Carex nigra		Flowering Plants
Lotus corniculatus		Flowering Plants
Juncus articulatus		Flowering Plants
Carex arenaria		Flowering Plants
Ranunculus repens		Flowering Plants
Plantago lanceolata		Flowering Plants
Galium palustre		Flowering Plants
Anthoxanthum odoratum		Flowering Plants
Prunella vulgaris		Flowering Plants

Flowering Plants Salix repens

Flowering Plants Agrostis stolonifera

Flowering Plants Phragmites australis

Flowering Plants Festuca rubra

Mosses & Liverworts Calliergonella cuspidata

Dominant species are those that often reach high cover in the habitat, thus determining the habitat physiognomy.

Species scientific name	English common name	Species group
Salix repens		Flowering Plants
Agrostis stolonifera		Flowering Plants
Phragmites australis		Flowering Plants
Festuca rubra		Flowering Plants
Calliergonella cuspidata		Mosses & Liverworts

Please note that a maximum of 20 species of each indicator category is shown.

Other classifications

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012)	B1.8	Moist and wet dune slacks	narrower
European Red List of Habitats	B1.9	Machair	overlap
European Red List of Habitats	B1.8a	Atlantic and Baltic moist and wet dune slack	same

For relation to plant communities (syntaxa), see Vegetation types

History

Classification	Code	Habitat type name	Relationship type
EUNIS Habitat Classification 200410	B1.8	Moist and wet dune slacks	same
EUNIS Habitat Classification 200308	B1.8	Moist and wet dune slacks	same
EUNIS Habitat Classification 200202	B1.8	Moist and wet dune slacks	same
EUNIS Habitat Classification 199910	B1.8	Moist and wet dune slacks	same
EUNIS Habitat Classification 199811	B1.8	Moist and wet dune slacks	same
EUNIS Habitat Classification 199712	B5.4	Moist and wet dune slacks	same
Palaearctic Habitat Classification 199905	16.3	Humid dune-slacks	same
Palaearctic Habitat Classification 1997	16.3	Humid dune-slacks	same
Palaearctic Habitat Classification 1996	16.3		same
Palaearctic Habitat Classification 1993	16.3		same
CORINE Biotopes Classification 1991	16.3		same
CORINE Biotopes Classification 1989	16.3		same

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Atlantic and Baltic moist and wet dune slack

Description (English)

Quick facts

Legal status

Relation to other habitat types mentioned in legal instruments

Vegetation types

Relation to vegetation types (syntaxa)

Indicator species

Other classifications

History