• Proposed
  • Under Assessment
  • Preliminary Assessed
  • NTAssessed
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Cortinarius meinhardii Bon

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Scientific name
Cortinarius meinhardii
Author
Bon
Common names
Dottergelber Klumpfuß
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Agaricales
Family
Cortinariaceae
Assessment status
Assessed
Preliminary Category
NT A2c+3c+4c
Proposed by
Tor Erik Brandrud
Assessors
Tor Erik Brandrud
Comments etc.
A. Martyn Ainsworth, Anders Dahlberg, Irmgard Krisai-Greilhuber

Assessment Notes

R-L categories correct, but text here does not match final assessment. Updated version will be published in IUCN´s Red List June or Nov 2019.

Justification

Cortinarius meinhardii is associated with Picea abies, Abies alba and Pinus sylvestris. Its major habitats are calcareous Picea-Pinus or Picea-Abies forests of N or C Europe, forest types with many habitat-specific taxa of Cortinarius, subgenus Phlegmacium. 
The Phlegmacium-rich, calcareous Picea, Pinus or Abies forests often occupies small and fragmented areas, and the habitats are vulnerable of habitat loss due to urbanization, lime quarries, etc, and to decreased ecological conditions due to modern forestry (with clear-cuts). 
Global red-list assessment: The species is known from approx. 300 localities in Europe/globally (with distributional centre in the Prealps). The total population is estimated to approx. 3 000 localities, which is equivalent to approx. 60 000 individuals according to IUCN standards.
The decline of the calcareous Picea-Pinus-Abies forests in the evaluation period (last 50 years) is estimated to be in the magnitude of 15-20%. Based on this, the species becomes red-listed as NT according to the A-criterion (A2c + 3c + 4c) (species/habitat decline >15%).


Taxonomic notes


Why suggested for a Global Red List Assessment?

 


Geographic range

As many other European calciphilous Phlegmacium Picea/conifer associates, Cortinarius meinhardii shows a more or less bicentric distribution, restricted mainly to Central Scandinavia-Estonia of N Europe and the Jura-Prealp-Carpathian region of C Europe.The species is also recorded in montane areas of S Europe (Pyrenées, Apennines), and also from montane Turkey. The species is recorded up to 1600-1700 m asl. in the Pyrenéenes and the Alps.


Population and Trends

Cortinarius meinhardii is known from approx. 100 sites/localities in Scandinavia, according to data from national Red lists of Sweden and Norway, and from approx. 200 sites/localities of C-S Europe (60 sites in Germany; 80 sites from Austria), according to databases and several regional reports. The total population is estimated to approx. 3000 localities, which is equivalent to approx. 60 000 individuals according to IUCN standards.
The decline of the calcareous Picea-Pinus-Abies forests in the evaluation period (last 50 years) is estimated to be in the magnitude of 15-20%. Based on this, the species becomes red-listed as NT according to the A-criterion (A2c + 3c + 4c) (species/habitat decline >15%).

Population Trend: Decreasing


Habitat and Ecology

Cortinarius meinhardii is associated with Picea abies, Abies alba and more rarely Pinus sylvestris. Its major habitats are (strongly) calcareous, mossy, herb-rich Picea-Pinus or Picea-Abies forests of N or C Europe, forest types with many habitat-specific taxa of Cortinarius, subgenus Phlegmacium.  The species occurs mainly in old-growth forests.
In Scandinavia the species occurs in calcareous spruce forests or semi-open calcareous pine forests, usually with scattered spruce. Th species is found in boreonemoral-southern boreal-middle boreal regions up to 500 m asl.
In C Europe the species occurs in montane, calcareous spruce-fir forests as well as more subalpine, calcareous spruce forests, reported up to 1600-1700 m asl. In the Swiss Alps as well as in the Pyrenéenes. In the Pyrenées the species is recorded from Pinus sylvestris forests (without Picea or Abies). In Turkey the species is reported from montane Cedar forests.

Boreal Forest

Threats

Cortinarius meinhardii and its habitats (calcareous Picea-Abies-Pinus forests) have been declining e.g. due to areal loss (urbanization, including tourist resorts, road constructions, expansion of limestone quarries) as well as decreased habitat quality/ecological conditions due to modern forestry with clear-cuttings. Forest statistics from Austria indicates that forestry activity has been doubled the last 40 years, and according to a habitat-redlist in Austria, the Abies-Picea forests are endangered in many regions of Austria. The major habitat of C. meinhardii in Norway, the calcareous pine(spruce) forests of SE Telemark has declined by >50% due to areal loss since 1970 (and the forest type is redlisted as VU in Norway).

Housing & urban areasTourism & recreation areasUnintentional effects: large scale (species being assessed is not the target) [harvest]

Conservation Actions

To prevent decline and further fragmentation of calcareous Picea-Abies-Pinus forests with good habitat quality, it is important to set aside reserves on calcareous hotspots, housing many rare/redlisted, habitat-specific species such as C. cupreorufus, C. dalecarlicus and C. sulfurinus. It is furthermore important to establish also sites with a less strict conservation regime, such as woodland key biotopes, where some non-destructive human activities are accepted (such as non-intensive forestry, with closed cutting).

Site/area protection

Research needed

More mapping/surveying and monitoring of C. meinhardii is needed. The species is striking, and its occurrences are rather well documented in Scandinavia and the Prealp region. However, the species is little documented from e.g. the Carphatians, where it probably has a wider distribution, probably also in the Balkan region. Finally, more documentation on the degree of decline of the habitats themselves is needed.

Population size, distribution & trendsLife history & ecologyThreats

Use and Trade


Bibliography


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted