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Scientific name
Arthothelium ruanum (A. Massal.) Körb.
Group of organisms
Basidiomycota p.p. & Ascomycota p.p.
Red List Category
Threat of Unknown Extent
Responsibility of Germany
General responsibility
Current population status
moderately common
Long-term population trend
decline of unknown extent
Short-term population trend
constant
Special cases
Negative risk factor(s) is/are known
Risk factors
Increasing indirect impacts, e. g. deterioration of habitat quality
Previous Red List Category
Highly Threatened
Change of category compared to previous Red List
The change of category is not assessable, for example because the previous Red List does not list the taxon or the taxon has not been assessed in the previous Red List.
Status
Indigenes or Archaeobiota
Source

Wirth, V.; Hauck, M.; Brackel, W. von; Cezanne, R.; Bruyn, U. de; Dürhammer, O.; Eichler, M.; Gnüchtel, A.; John, V.; Litterski, B.; Otte, V.; Schiefelbein, U.; Scholz, P.; Schultz, M.; Stordeur, R.; Feuerer, T. und Heinrich, D. (2011): Rote Liste und Artenverzeichnis der Flechten und flechtenbewohnenden Pilze Deutschlands. – In: Ludwig, G. & Matzke-Hajek, G. (Red.): Rote Liste gefährdeter Tiere, Pflanzen und Pilze Deutschlands. Band 6: Pilze (Teil 2) – Flechten und Myxomyzeten. – Münster (Landwirtschaftsverlag). – Naturschutz und Biologische Vielfalt 70 (6): 7-122.