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Biotopes & milieux

Biotope - Typologie Européenne EUNIS

F2.33 - Niveau 4 : Fourrés subalpins mixtes
Description
Communities of the subalpine zone, of the tree-limit, and sometimes of the montane zone, of higher nemoral mountains of the western Alpine system and its associated ranges (Carpathians) mainly of alliances Calamagrostion villosae and Trisetion fusci dominated by tall or medium shrubs, for the most part Rosaceae species (of genera Rubus, Sorbus, Amelanchier, Potentilla), Betula or tall Vaccinium, Salix helvetica, Salix kitaibeliana and grasses Calamagrostis villosa and Deschampsia cespitosa often accompanied by tall herbs characteristic of the subalpine tall herb communities (unit E5.5), or by subalpine heaths, such as the Juniperus nana-Arctostaphylos uva-ursi heaths.
Taxons (Liens actifs si espèces présentes)
Amelanchier Medik., 1789, Betula L., 1753, Calamagrostis villosa (Chaix) J.F.Gmel., 1791, Deschampsia cespitosa (L.) P.Beauv., 1812, Juniperus nana Willd., 1796 [nom. illeg. superfl.], Potentilla L., 1753, Rubus L., 1753 [nom. et typ. cons.], Salix helvetica Vill., 1789, Salix kitaibeliana Willd., 1806, Sorbus L., 1753 [nom. et typ. cons.], Vaccinium L., 1753,
F2.331 - Niveau 5 : Fourrés subalpins à Sorbus
Description
Thickets of the subalpine zone of the Alps, the Carpathians, the Jura, the Hercynian ranges, dominated by Sorbus aucuparia ssp. glabrata, Sorbus chamaemespilus, Sorbus mougeotii, Sorbus ambigua, Sorbus austriaca or other shrubby Sorbus species, in particular, tree-limit formations with Betula carpatica, Lonicera nigra, Prunus padus ssp. borealis (Padus petraea).
Taxons (Liens actifs si espèces présentes)
Betula carpatica Waldst. & Kit. ex Willd., 1805 ( Esp. caract. )
Lonicera nigra L., 1753 ( Esp. caract. )
Padus petraea (Tausch) M.Roem., 1847 ( Esp. caract. )
Prunus padus subsp. borealis Cajander, 1906 ( Esp. caract. )
Sorbus aucuparia subsp. glabrata (Wimm. & Grab.) Cajander, 1906 ( Esp. caract. )
Sorbus chamaemespilus (L.) Crantz, 1763 ( Esp. caract. )
Sorbus L., 1753 [nom. et typ. cons.] ( Esp. caract. )
Sorbus mougeotii Soy.-Will. & Godr., 1858 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)