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Biotopes & milieux

Biotope - Typologie CORINE

54.11 - Niveau 4 : Sources d'eaux douces pauvres en bases
Description
Acid or neutral, oligotrophic to eutrophic non-calcareous springs. The specialized spring communities belong to the various associations of the Cardamino-Montion or, in Iberian mountains, the Myosotidion stoloniferae; some of them are individualized below. The associated swamp communities belong to the Caricetalia fuscae and their presence can be indicated by use, simultaneously with one of the codes of 54.11, of a code of 54.4.
Taxons (Liens actifs si espèces présentes)
Aconitum napellus subsp. corsicum (Gáyer) Seitz, 1969, Carex frigida All., 1785, Chrysosplenium oppositifolium L., 1753, Cymbalaria hepaticifolia (Poir.) Wettst., 1891, Doronicum corsicum (Loisel.) Poir., 1812, Hypericum corsicum Steud. ex Godr., 1847, Imperatoria ostruthium L., 1753, Myosotis soleirolii (Nyman) Godr. ex Rouy, 1896, Ranunculus cordiger Viv., 1824, Saxifraga rotundifolia subsp. rotundifolia L., 1753, Sibthorpia europaea L., 1753, Stellaria alsine Grimm, 1767, Viola biflora L., 1753,
54.111 - Niveau 5 : Sources d'eaux douces à Bryophytes
Description
Spring communities of waters poor in lime dominated by bryophytes, mostly characteristic of northern upland and high montane, alpine or subalpine levels, also locally of well-lit lowland sites. The principal mosses that compose them are Philonotis fontana, P.seriata, Anthelia julacea, Pohlia wahlenbergii, Scapania paludosa, Bryum schleicheri, Sphagnum auriculatum. A few small vascular plants accompany them, in particular Montia fontana, Saxifraga stellaris, S. rivularis, S. aquatica, Cerastium cerastoides, Epilobium anagallidifolium.
Taxons (Liens actifs si espèces présentes)
Bartsia alpina L., 1753 ( Comb. caract. )
Cardamine amara subsp. pyrenaea Sennen, 1929 ( Comb. caract. )
Carex frigida All., 1785 ( Comb. caract. )
Carex nigra (L.) Reichard, 1778 ( Comb. caract. )
Cerastium cerastoides (L.) Britton, 1894 ( Comb. caract. )
Epilobium alsinifolium Vill., 1779 ( Comb. caract. )
Epilobium nutans F.W.Schmidt, 1794 ( Comb. caract. )
Micranthes stellaris (L.) Galasso, Banfi & Soldano, 2005 ( Comb. caract. )
Montia fontana L., 1753 ( Comb. caract. )
Montia hallii (A.Gray) Greene, 1891 ( Comb. caract. )
Myosotis martini Sennen, 1926 ( Comb. caract. )
Pinguicula corsica Bernard & Gren. ex Gren., 1853 ( Comb. caract. )
Pinguicula vulgaris var. alpicola Rchb., 1823 ( Comb. caract. )
Ranunculus flammula var. flammula L., 1753 ( Comb. caract. )
Ranunculus marschlinsii Steud., 1841 ( Comb. caract. )
Sagina saginoides (L.) H.Karst., 1882 ( Comb. caract. )
Saxifraga aizoides L., 1753 ( Comb. caract. )
Saxifraga aquatica Lapeyr., 1801 ( Comb. caract. )
Sedum villosum L., 1753 ( Comb. caract. )
Stellaria alsine Grimm, 1767 ( Comb. caract. )
Veronica ponae Gouan, 1773 ( Comb. caract. )
Viola biflora L., 1753 ( Comb. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)
Faible
Forte — nb espèces indicatrices par classe
Humidité
Réaction du sol (pH)
Nutriments
Lumière
Matière organique
Granulométrie
Salinité