Rote Liste Grosspilze - Vapko

Summary 11
> Summary
The 2007 Red List of threatened macrofungi in Switzerland is based on the criteria
proposed by the IUCN (2001) and the guidelines for regional Red Lists by the IUCN
(2005).
Of the 2956 evaluated species of the Swiss macromycetes flora, 937 (32 %) are threatened.
1 of these is at present extinct in Switzerland (RE), 81 (2,7 %) are considered as
critically endangered (CR), 360 (12,1 %) as endangered (EN) and 495 (16,7 %) as
vulnerable (VU). An additional 143 (4,8 %) species are listed as nearly threatened (NT)
and 1876 species (63,5 %) are not threatened (LC). Due to missing data a total of 2004
species (40,4 %) could not be classified (DD).
The highest percentages of Red List species are found in dry grassland and bogs and
mires. The alpine zone has several threatened species due to overall small populations
in small areas. In woodlands the percentage of threatened species is comparable small.
However nutrient input from the air threatens the habitat quality especially for mycorrhizal
species, especially so in the Swiss plateau. Numerous threatened species are
wood-inhabiting species. The increase of woody debris as a consequence of wind
throw events and changing forestry managements in the last years has not yet positively
influenced the presence of rare, highly specialized wood saprotrophs.