Wood-inhabiting porlings in the Gesäuse National Park

In the present study, the species population of Porlingen (Aphyllophorales, Polyporaceae) was collected in ten selected natural forest parcels in the Gesäuse National Park. The forest parcels represent the forest societies predominant in the national park. In addition to montane beech forests, beech-tap spruce forests with a proportion of larch-circle forests, a pine forest was also investigated. Most species as well as the highest proportion of endangered species have the tree-rich spruce-tap beech forests due to the greater substrate supply. The occurrence of rare species and the proximity of nature to a forest area not only determines the amount of dead wood produced, but also the quality of dead wood. In addition, the National Park also features close-to-natural forest society, which naturally have a small proportion of dead wood. The aim of a natural forest management should not be to demand a certain quantity of deadwood for each natural forest area, but to enable and create conditions as they were created in natural and primeval forests due to natural events. As proposals for a natural forest management is mentioned, among other things, the leaving of waste wood islands, of individual overhangers as well as of wind throw nests and the preservation and reproduction of standing dead wood. In order to avoid damage caused by the bark beetle, sufficient dead wood should create a natural balance between the pests mentioned and its opponents. In addition, the possibility of natural rejuvenation is required by a reduction of the increased red deer stock. In total, 52 species of wood-inhabiting porks and some other notable representatives from other groups of aphyllophorales (non-leaf fungi) were mapped. 11 species belong to the red lists of endangered large mushrooms of Styria. Climacodon septentrionale is new for Styria. Trichaptum laricinum, the larch Violettporling, is described for the first time in this work from the Alpine region.