Screes

English name: Screes

Description (English)

Accumulations of boulders, stones, rock fragments, pebbles, gravels or finer material, of non-aeolian depositional origin, unvegetated, occupied by lichens or mosses, or colonized by sparse herbs or shrubs. Included are screes and scree slopes produced by slope processes, moraines and drumlins originating from glacial deposition, sandar, eskers and kames resulting from fluvio-glacial deposition, block slopes, block streams and block fields constructed by periglacial depositional processes of downslope mass movement, ancient beach deposits constituted by former coastal constructional processes. Deposits originating from aeolian depositional processes (dunes) or from eruptive volcanic activity are not included; they are included in H5 and H6 respectively. High mountain, boreal and mediterranean unstable screes are colonized by highly specialised plant communities. They or their constituting species may also inhabit moraines and other depositional debris accumulations in the same areas. A very few communities form in lowland areas elsewhere.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code H2

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Not available

Other classifications

Classification Code Habitat type name Relationship type
Palaearctic Habitat Classification 200112 61 Screes, gravel and boulder fields wider
CORINE Land Cover 3.3.2. Bare rock n/a
Phase 1 habitat classification (UK) 1993 I1 Natural rock exposure wider
Phase 1 habitat classification (UK) 1993 I12 Natural rock exposure: scree same
Biodiversity Broad Habitat Classification (UK) 16 Inland rock wider
Milieux Naturels de Suisse 1998 3.3 Eboulis same
Biotopes of Slovakia 1996 4320000 Skalné sutiny v montánnom až supramontánnom stupni n/a
Biotopes of Slovakia 1996 4323000 Vlhké sutiny v inverzných polohách montánneho stupna n/a
Biotopes of Slovakia 1996 4300000 Skalné sutiny n/a
For relation to plant communities (syntaxa), see Vegetation types
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