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Biotopes & milieux

Biotope - Typologie Européenne EUNIS

E4.4 - Niveau 3 : Pelouses alpines et subalpines calcicoles
Description
Alpine and subalpine grasslands of base-rich soils of the high mountains of the nemoral, submediterranean and supramediterranean zones. Characteristic species of the Alps include Dryas octopetala, Gentiana nivalis, Gentiana campestris, Alchemilla hoppeana, Alchemilla conjuncta, Alchemilla flabellata, Anthyllis vulneraria, Astragalus alpinus, Aster alpinus, Draba aizoides, Globularia nudicaulis, Helianthemum nummularium ssp. grandiflorum, Helianthemum oelandicum ssp. alpestre, Pulsatilla alpina ssp. alpina, Phyteuma orbiculare, Astrantia major and Polygala alpestris.
Taxons (Liens actifs si espèces présentes)
Anthyllis vulneraria L., 1753, Astragalus alpinus L., 1753, Brachyura sp., Corophium sp., Dryas octopetala L., 1753, Galium sp., Gentiana nivalis L., 1753, Nardus sp., Nematoda sp., Nematoda sp., Nemertea sp., Polygala alpestris Rchb., 1823, Polygordius sp., Salsola sp., Stipa sp., Suaeda sp., Terebellidae sp.,
E4.42 - Niveau 4 : Gazons des crêtes venteuses à Kobresia myosuroides
Description
Meso-xerophile, relatively closed and unsculptured swards of Kobresia myosuroides (Elyna myosuroides) forming on deep, fine soils of protruding ridges and edges exposed to strong winds in the alpine and nival levels of the Alps, the Carpathians, the Pyrenees, the Cantabrian Mountains and, very locally, the Abruzzi and the mountains of the Balkan peninsula, with Oxytropis, Draba, Carex spp. and others.
Taxons (Liens actifs si espèces présentes)
Carex L., 1753 ( Esp. caract. )
Draba L., 1753 ( Esp. caract. )
Elyna myosuroides (Vill.) Fritsch ex Janch., 1907 ( Esp. caract. )
Kobresia myosuroides (Vill.) Fiori, 1896 ( Esp. caract. )
Oxytropis DC., 1802 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)