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3.3.2.2. Alpine Silikatschuttflur

Androsacion alpinae

Description

Phyonomy and Ecology (© Delarze & al. 2015)

Das Aussehen der alpinen Silikatschuttfluren ist weniger einheitlich als dasjenige der Kalkschuttfluren. Die Pflanzen sind im Allgemeinen spärlich verteilt (Deckungsgrad meist unter 10 Prozent), oft dominieren niederliegende Wuchsformen, es können aber auch grosswüchsige, aufrechte Arten wie der Alpendost Adenostyles leucophylla vorkommen. Die Gesellschaft besiedelt wenig bewegliche Geröllhalden und Pionierstadien von Moränen. Das kristalline Substrat reagiert sauer (pH 4 bis 6), bietet aber wegen des höheren Anteils an Feinerde bessere Wachstumsbedingungen als die Kalkschutthalden. Solchen Schutt- und Geröllfluren begegnet man von der subalpinen bis zur nivalen Stufe. In subalpinen Lagen werden sie durch farnreiche Gesellschaften (Athyrium distentifolium, Cryptogramma crispa) vertreten.

Distribution map

  • Calculation method

    Current distribution: Weighted sum (number of characteristic and frequent species) per hectare based on current observations. Reported characteristic species are given a weighting of 10, while others are counted without weighting. The habitat is considered to be present in a grid cell (5 x 5 km) if it contains at least one hectare with a minimum value of 11 points.

    Potential distribution: Weighted sum (number of characteristic and frequent species) per hectare based on species distribution models. The calculation strategy is the same as for current distribution, but maps derived from species distribution models are used instead of current observations.

Pictures

List of species

bold Dominant species, influencing the appearance of the habitat
Character species Character species
Less strictly linked to a specific habitat Less strictly linked to a specific habitat


Scientific name English name
Character species Androsace alpina (L.) Lam.Alpen-Mannsschild
Character species Cardamine resedifolia L.Resedablättriges Schaumkraut
Character species Cerastium pedunculatum GaudinLangstieliges Hornkraut
Character species Cerastium uniflorum Clairv.Einblütiges Hornkraut
Character species Cryptogramma crispa (L.) Hook.Krauser Rollfarn
Character species Doronicum clusii (All.) TauschClusius' Gämswurz
Character species Geum reptans L.Kriechende Nelkenwurz
Character species Hieracium alpicola Steud. & Hochst.Seidenhaariges Habichtskraut
Character species Oxyria digyna (L.) HillSäuerling
Character species Poa laxa HaenkeSchlaffes Rispengras
Character species Saxifraga aspera L.Rauer Steinbrech
Character species Saxifraga bryoides L.Moosartiger Steinbrech
Character species Thlaspi rotundifolium subsp. corymbosum GremliDoldentraubiges Rundblättriges Täschelkraut
Less strictly linked to a specific habitat Achillea erba-rotta subsp. moschata (Wulfen) Vacc.Moschus-Schafgarbe
Less strictly linked to a specific habitat Adenostyles leucophylla (Willd.) Rchb.Filziger Alpendost
Less strictly linked to a specific habitat Androsace vitaliana (L.) Lapeyr.Goldprimel
Less strictly linked to a specific habitat Asplenium ×alternifolium WulfenDeutscher Streifenfarn
Less strictly linked to a specific habitat Athyrium distentifolium OpizGebirgs-Frauenfarn
Less strictly linked to a specific habitat Campanula excisa MurithAusgeschnittene Glockenblume
Less strictly linked to a specific habitat Eritrichium nanum (L.) GaudinHimmelsherold
Less strictly linked to a specific habitat Gentiana bavarica subsp. subacaulis (Schleich.) G. Mull.Kurzstieliger Bayerischer Enzian
Less strictly linked to a specific habitat Murbeckiella pinnatifida (Lam.) Rothm.Fiederrauke
Less strictly linked to a specific habitat Phyteuma hedraianthifolium Rich. SchulzRätische Rapunzel
Less strictly linked to a specific habitat Ranunculus glacialis L.Gletscher-Hahnenfuss
Less strictly linked to a specific habitat Sedum alpestre Vill.Alpen-Mauerpfeffer
Less strictly linked to a specific habitat Sedum anacampseros L.Rundblättriges Fettkraut
Less strictly linked to a specific habitat Thalictrum minus subsp. saxatile Ces.Felsen-Wiesenraute
Less strictly linked to a specific habitat Trifolium pallescens Schreb.Bleicher Klee

Status

Status according to the habitat priority list at the national level

National Priority 4: weak national priority
Need to take action 0: mesures needed
International responsibility 3: high

Status on national Red List 2016

IUCN status:   Least concern

LC: Non menacé

Additional information

IUCN criteria: --

  • Legend
    COCollapsed
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern

Legal protection (NCHO appendix 1)

Natural habitat worthy of protection

Regeneration status 2016

Regeneration class 4: 25 to 50 years