24.21 - River gravel deposits

Classification des habitats du Paléarctique (2001)

Description

Deposit beds of Palaearctic streams formed of pebbles, gravels, boulders or a mixture of gravels and finer sediments, occupying the edges of the stream, forming islands in the channel or supporting the arms and rivulets constituting the stream, together with their associated animal communities. The presence of vascular vegetation is indicated by use of the appropriate code from unit 24.22. Water-fringing communities, in particular of units 53, 37.7, 37.8, 37.9, may contribute to the colonisation of the deposits.

Bibliography

Devillers P., Devillers-Terschuren J. & Vander Linden C., 2001. PHYSIS Palaearctic Habitat Classification Database. Updated to 10 December 2001. Institut Royal des Sciences Naturelles, Bruxelles. (Source)

Ellenberg, 1963, 1988; Vanden Berghen, 1982; Polunin and Walters, 1985; Oberdorfer, 1990, 1992a; Clark, 1990; Schubert, 1991; Summerfield, 1991: 199-204, 284-287; Leser, 1994; Einarsson, 1994: 146-154, 169-170; Waugh, 1995: 50-89; Gudmundsson and Kjartansson, 1996: 23-29.