Im Unterschied zu anderen kristallinen Gesteinen der Alpen enthält Serpentin viele Basen, aber auch Schwermetalle. Dadurch wirken diese Gesteine als Unterlage toxisch und werden nur von schwermetalltoleranten Individuen (Ökotypen) sowie von speziellen, angpassten Farnen dünn besiedelt. Dieser Vegetationstypus besetzt nur kleine, isolierte Flächen. Er bleibt oft fragmentarisch und artenarm. Das Asplenion serpentini geht selten über die alpine Stufe hinaus. In höheren Zonen werden die ultrabasischen Felsen von verarmten Formen des Androsacion vandellii (3.4.2.2) und vom Androsacion alpinae (3.3.2.2) besiedelt.
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. |
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Dominant species, influencing the appearance of the habitat
Character species
Less strictly linked to a specific habitat
Scientific name | English name | Asplenium | Asplenium cuneifolium Viv. | Keilblättriger Streifenfarn | Notholaena marantae (L.) Desv. | Pelzfarn | Campanula rotundifolia L. | Rundblättrige Glockenblume | Sedum album L. | Weisser Mauerpfeffer |
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National Priority | 3: medium national priority |
Need to take action | 0: mesures needed |
International responsibility | 1: weak |
IUCN status: Vulnerable
Additional information
IUCN criteria: B2
CO | Collapsed |
CR | Critically Endangered |
EN | Endangered |
VU | Vulnerable |
NT | Near Threatened |
LC | Least Concern |
Natural habitat worthy of protection
Regeneration class | 5: 50 to 200 years |