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8110 - Éboulis siliceux de l'étage montagnard à nival (Androsacetalia alpinae et Galeopsietalia ladani)

Siliceous scree of the montane to snow levels (Androsacetalia alpinae and Galeopsietalia ladani)

Liste hiérarchisée et descriptifs des habitats d'intérêt communautaire de la directive "Habitats"

Description

This habitat consist of:
a) communities of siliceous scree of the upper montane level to the permanent snow level, growing on more or less moving ‘cryoclastic systems’ with variable granulometry and belonging to the order Androsacetalia alpinae.
b) vegetation of the montane level of the west and centre of Europe growing on screes sometimes of artificial origin (extraction of materials). It consists of alpine communities often rich in bryophytes, lichens and sometimes in ferns (Cryptogramma crispa), belonging to the order Galeopsietalia.

Espèces caractéristiques

Plants: a) Androsacetalia alpinae: Androsacae alpina, Achillea nana, Oxyria digyna, Geum reptans, Saxifraga bryoides, Ranunculus glacialis, Linaria alpina, Cerastium uniflorum, Doronicum clusii, D. grandiflorum, Poa laxa, Viola valderia, Luzula alpinopilosa, Cryptogramma crispa; Veronica baumgartenii, Saxifraga carpatica, Senecio carniolicus, Poa contracta, Festuca picta, Saxifraga pedemontana ssp. cymosa, Silene acaulis, Androsace chamaejasme b) Galeopsietalia ladani: Galeopsis ladanum ssp. ladanum, Anarrhinum bellidiflorum, Cryptogramma crispa, Athyrium alpestre (A.. distentifolium).

Correspondances avec la classification du Paléarctique

61.1

Correspondances avec d'autres classifications

United Kingdom classification: ‘U21 Cryptogramma crispa-Deschampsia flexuosa community' and ‘U18 Cryptogramma crispa-Athyrium distentifolium snow bed'.
German classification: ‘6304 Silikatschutthalde der Alpen'.
Nordic classification: ‘1251a Cryptogramma crispa-variant', ‘7141 Veronica fruticans -typ' and ‘7142 Veronica fruticans-Juniperus communis -typ'.

Remarques

This habitat is generally in close association with the chasmophytic vegetation on siliceous rocky slopes (8220). In Ireland and the United Kingdom, sites sheltering rare arctic-alpine plants (post glacial remnants) have a high conservation value.

Bibliographie

Conseil de l'Union européenne, 2013. Directive 2013/17/UE du Conseil du 13 mai 2013 portant adaptation de certaines directives dans le domaine de l'environnement, du fait de l'adhésion de la République de Croatie. Annexes. Partie B Protection de la nature. Journal officiel de l'Union européenne, L 158 du 10/06/2013, p. : 195-203. (Source)

Bringer, K.-G. (1965). Plant cover of the alpine regions. Chionophobous plant communities. Acta Phytogeogr. Suec. 50:257-262.

Doniţă, N., Popescu, A., Paucă-Comănescu, M., Mihăilescu, S., Biriş, I.A. (2005). Habitatele din România. Edit. Tehnică Silvică, Bucureşti, 500 p. (ISBN 973-96001-4-X).