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Biotope - Typologie Européenne EUNIS
F9.1Niveau 3Fourrés ripicoles
↑ Niveau supérieurDescription
Scrub of broad-leaved willows, e.g. Salix aurita, Salix cinerea, Salix pentandra, beside rivers. Scrub of Alnus spp. and narrow-leaved willows, e.g. Salix elaeagnos, where these are less than 5 m tall. Riverside scrub of Hippophae rhamnoides and Myricaria germanica. Excludes riversides dominated by taller narrow-leaved willows Salix alba, Salix purpurea, Salix viminalis (G1.1).
Taxons associés
Alnus Hill, 1753 [nom. inval.]Esp. caract.Bathyporeia sp.Esp. caract.Cirratulidae sp.Esp. caract.Ensis sp.Esp. caract.Hippophae rhamnoides L., 1753Esp. diagn.Nephtys sp.Esp. caract.Polychaeta sp.Esp. diagn.Rhodophycota sp.Esp. diagn.Salix cinerea L., 1753Esp. caract.Spio sp.Esp. caract.Spongosorites sp.Esp. diagn.Terebellidae sp.Esp. diagn.
F9.13Niveau 4Fourrés bas des graviers des cours d'eau montagnards
Habitat sélectionnéDescription
Communities of low shrubby pioneers invading the herbaceous formations of units C3.551 and C3.552 on gravel deposits rich in fine silt of montane and northern boreal streams with an alpine, summer-high, flow regime. Myricaria germanica, Chamaerion dodonai and Salix spp. are characteristic. Vegetation may include the alliances Salicion incanae and Salicion eleagno-daphnoidis.
Taxons associés
Myricaria germanica (L.) Desv., 1824Esp. caract.Salix L., 1753Esp. caract.
Analyse écologique du milieu
(en fonction des espèces présentes)