Eastern Mediterranean base-rich scree

Description (English)

Calcareous and ultrabasic screes, with talus, boulder fields, glacier forefields, rock debris and riverine gravel banks, from the lowlands upwards to subnival levels in the eastern Mediterranean. Apart from epilithic bryophytes and lichens on rock outcrops and stable boulders, the vegetation consists mainly of specialist vascular plants adapted to the mobility of scree materials, the scarcity of fine-grained soil, mechanical disturbance, shortage of water and other physiological stresses. Towards the foothills and lowlands, the habitat becomes rarer and more scattered but more prone to be affected by human disturbances, especially in terms of species composition. However, high mountain screes are usually well preserved, most within protected areas, and therefore in a very natural state.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code U29
Relation to Resolution 4 habitat type (used for designation of Emerald sites)

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Indicator species

Diagnostic species
Constant species
Dominant species
Flowering Plants Cicer incisum
Flowering Plants Silene variegata
Flowering Plants Scutellaria hirta
Flowering Plants Satureja spinosa
Flowering Plants Alyssum sphacioticum
Flowering Plants Peucedanum alpinum
Flowering Plants Ricotia cretica
Flowering Plants Astragalus angustifolius
Flowering Plants Mattiastrum lithospermifolium
Flowering Plants Viola fragrans
Flowering Plants Valantia aprica
Flowering Plants Asperula idaea
Flowering Plants Bufonia stricta
Flowering Plants Dianthus sphacioticus
Flowering Plants Cynoglossum sphacioticum
Flowering Plants Cardamine carnosa

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
Cicer incisum Flowering Plants
Silene variegata Flowering Plants
Scutellaria hirta Flowering Plants
Satureja spinosa Flowering Plants
Alyssum sphacioticum Flowering Plants
Peucedanum alpinum Flowering Plants
Ricotia cretica Flowering Plants
Astragalus angustifolius Flowering Plants
Mattiastrum lithospermifolium Flowering Plants
Viola fragrans Flowering Plants
Valantia aprica Flowering Plants
Asperula idaea Flowering Plants
Bufonia stricta Flowering Plants
Dianthus sphacioticus Flowering Plants
Cynoglossum sphacioticum Flowering Plants
Cardamine carnosa Flowering Plants
Flowering Plants Astragalus angustifolius
Flowering Plants Scutellaria hirta
Flowering Plants Rhamnus saxatilis
Flowering Plants Cicer incisum
Flowering Plants Aethionema saxatile
Flowering Plants Silene variegata
Flowering Plants Satureja spinosa
Flowering Plants Berberis cretica
Flowering Plants Asperula idaea

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
Astragalus angustifolius Flowering Plants
Scutellaria hirta Flowering Plants
Rhamnus saxatilis Flowering Plants
Cicer incisum Flowering Plants
Aethionema saxatile Flowering Plants
Silene variegata Flowering Plants
Satureja spinosa Flowering Plants
Berberis cretica Flowering Plants
Asperula idaea 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

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 H2.6 Calcareous and ultra-basic screes of warm exposures same
EUNIS Habitat Classification 200308 H2.6 Calcareous and ultra-basic screes of warm exposures same
EUNIS Habitat Classification 200202 H2.6 Calcareous and ultra-basic screes of warm exposures same
EUNIS Habitat Classification 199910 H2.6 Calcareous and ultra-basic screes of warm exposures same
EUNIS Habitat Classification 199811 H2.6 Calcareous and ultra-basic screes of warm exposures same
EUNIS Habitat Classification 199712 H2.6 Calcareous screes of warm exposures same
Palaearctic Habitat Classification 199905 61.4 Eastern Mediterranean screes narrower
Palaearctic Habitat Classification 199905 61.3 Part of Western Mediterranean and thermophilous screes narrower
Palaearctic Habitat Classification 199905 61.5 Illyrian screes narrower
Palaearctic Habitat Classification 1997 61.5 Illyrian calcareous screes narrower
Palaearctic Habitat Classification 1997 61.3 Part of Western Mediterranean and thermophilous screes narrower
Palaearctic Habitat Classification 1996 61.5   narrower
Palaearctic Habitat Classification 1996 61.3   narrower
Palaearctic Habitat Classification 1993 61.3   narrower
Palaearctic Habitat Classification 1993 61.5   narrower
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