Mediterranean siliceous scree
Description (English)
Siliceous screes derived from various sedimentary, igneous and metamorphic rocks occurring on lower slopes in the Mediterranean. Rock debris is often mixed with fine soil. Vegetation cover can be completely lacking or consisting only of bryophyte and lichen communities. In most cases, however, these screes support open vegetation of vascular plants, which tends to be poorer in species than Mediterranean calcareous screes. Natural succession is slower than in temperate screes. Screes overgrown with shrublands or forest do not belong to this habitat.
Source: EUNIS habitat classification
Quick facts
EUNIS habitat type | code U24 |
---|---|
Relation to | Resolution 4 habitat type (used for designation of Emerald sites) |
Legal status
Relation to other habitat types mentioned in legal instruments
Vegetation types
Relation to vegetation types (syntaxa)
Not availableIndicator species
Diagnostic species occur concentrated in the habitat in question, but are absent or rare in other habitats. They are good positive indicators of the habitat, but they do not need to occur in every location of the habitat.
Species scientific name | English common name | Species group |
---|---|---|
Viola crassiuscula | Flowering Plants | |
Cryptogramma crispa | Ferns | |
Festuca clementei | Flowering Plants | |
Euphorbia nevadensis | Flowering Plants | |
Silene inaperta | Flowering Plants | |
Reseda complicata | Flowering Plants | |
Stachys corsica | Flowering Plants |
Constant species occur frequently in the habitat, but they may include generalist species that are also frequent in other habitats.
Species scientific name | English common name | Species group |
---|---|---|
Digitalis purpurea | Flowering Plants | |
Cryptogramma crispa | Ferns | |
Avenella flexuosa | Flowering Plants |
Dominant species are those that often reach high cover in the habitat, thus determining the habitat physiognomy.
Species scientific name | English common name | Species group |
---|
Other classifications
Classification | Code | Habitat type name | Relationship type |
---|---|---|---|
EUNIS Habitat Classification 2007 (revised descriptions 2012) | H2.5 | Acid siliceous screes of warm exposures | narrower |
History
Classification | Code | Habitat type name | Relationship type | Comment |
---|---|---|---|---|
EUNIS Habitat Classification 200410 | H2.5 | Acid siliceous screes of warm exposures | same | |
EUNIS Habitat Classification 200308 | H2.5 | Acid siliceous screes of warm exposures | same | |
EUNIS Habitat Classification 200202 | H2.5 | Acid siliceous screes of warm exposures | same | |
EUNIS Habitat Classification 199910 | H2.5 | Acid siliceous screes of warm exposures | same | |
EUNIS Habitat Classification 199811 | H2.5 | Acid siliceous screes of warm exposures | same | |
EUNIS Habitat Classification 199712 | H2.5 | Siliceous screes of warm exposures | same | |
Palaearctic Habitat Classification 199905 | 61.3 | Part of Western Mediterranean and thermophilous screes | wider | |
Palaearctic Habitat Classification 1997 | 61.3 | Part of Western Mediterranean and thermophilous screes | wider | |
Palaearctic Habitat Classification 1996 | 61.3 | wider | ||
Palaearctic Habitat Classification 1993 | 61.3 | wider | ||
CORINE Biotopes Classification 1991 | 61.3 | wider | ||
CORINE Biotopes Classification 1989 | 61.3 | wider |