Rare and threatened wood-decaying fungi in the nature protected area around Trojmezná, Plechý, and Smrčina, Bohemia Forest, Czech Republic

The mountain forest in the south of the Bohemian Forest (Šumava National Park) is a refuge for fungi sensitive to forest management. Field research on fungi based on plots in old-growth mountain spruce forest and mixed mountain forests during the years 2003–2013 in this area revealed four critically endangered species (red-listed in the Czech Republic): Globulicium hiemale, Panellus violaceofulvus, Psathyrella cotonea and Skeletocutis stellae; and two other critically endangered species on the Bavarian Red List: Climacodon septentrionalis and Phlebia centrifuga. The ecology of red-listed wood-decomposing fungi occurring in this area is presented. We describe the forest management that is harmful to populations of wood-decomposing fungi in the study area, which was implemented to suppress bark beetle outbreaks in the most protected areas of the Šumava National Park.