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1.3.2. Kalkreiche Quellflur

Cratoneurion

Description

Phyonomy and Ecology (© Delarze & al. 2015)

Die Einheit beinhaltet Quellfluren mit Böden, die permanent mit kalkhaltigem Quellwasser (pH um 7) durchtränkt sind. Gelegentlich findet sich dieser Lebensraum auch entlang von kleinen Bergbächen. In den tieferen Lagen bilden sich gelegentlich Sinterkrusten (Travertin) durch Kalkausfällungen. Braune und schwarzgrüne Moose prägen das Bild der Vegetation, die Gefässpflanzen erreichen selten einen höheren Deckungsanteil als 30 Prozent. Das Mikroklima ist übers ganze Jahr relativ konstant, es ist stets kühl und feucht (durchschnittliche Jahrestemperatur von 5 bis 8 °C oder gar tiefer in der alpinen Stufe). Die Einheit kommt von der montanen bis in die alpine Stufe vor. In den tieferen Lagen besiedelt sie vorzugsweise schattige Standorte.

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 Arabis subcoriacea Gren.Bach-Gänsekresse
Character species Cochlearia pyrenaica DC.Pyrenäen-Löffelkraut
Less strictly linked to a specific habitat Agrostis stolonifera L.Kriechendes Straussgras
Less strictly linked to a specific habitat Alchemilla demissa Buser
Less strictly linked to a specific habitat Alchemilla incisa Buser
Less strictly linked to a specific habitat Aster bellidiastrum (L.) Scop.Alpenmasslieb
Less strictly linked to a specific habitat Cardamine asarifolia L.Haselwurzblättriges Schaumkraut
Less strictly linked to a specific habitat Epilobium alsinifolium Vill.Mierenblättriges Weidenröschen
Less strictly linked to a specific habitat Pinguicula alpina L.Alpen-Fettblatt
Less strictly linked to a specific habitat Pinguicula vulgaris L.Gemeines Fettblatt
Less strictly linked to a specific habitat Saxifraga aizoides L.Bach-Steinbrech
Less strictly linked to a specific habitat Saxifraga mutata L.Kies-Steinbrech
Less strictly linked to a specific habitat Taraxacum fontanum aggr.Quell-Löwenzahn

Status

Status according to the habitat priority list at the national level

National Priority 1: very high national priority
Need to take action 2:
International responsibility 1: weak

Status on national Red List 2016

IUCN status:   Critically endangered

LC: Non menacé

Additional information

IUCN criteria: A1

  • 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 3: 10 to 25 years