A Kaposvári Rippl-Rónai Múzeum Közleményei 1. (Kaposvár, 2013)
Ortmann-né Ajkai Adrienne - Tóth István Zsolt - Sirok Attila - Nagy Dániel - Kulcsár Péter - Partos Kálmán: Egy ismeretlen "őserdő" a Kelet-Mecsekben: 25 éve felhagyott bükkös aljnövényzetének térbeli mintázatai
70 A scarcely known old-growth forest in Eastern Mecsek hills: Spatial patterns of the herb layer of a beech forest abandoned 25 years ago. ADRIENNE ORTMANN-NÉ AJKAI, ISTVÁN ZSOLT TÓTH, ATTILA SÍROK, DÁNIEL NAGY, PÉTER KULCSÁR, KÁLMÁN PARTOS Summary A 130-years old beech forest stand in Eastern Mecsek hills (Southern Hungary), abandoned 22- 25 years ago, provides excellent opportunities for the study of spontaneous forest dynamics. In 2010 intensive studies started, iniciated by Mecsekerdő Zrt: repeating an individuum-based tree-stand survey of 1986-87, a grid-based herb layer survey according to the Forest Reserve Protocol (50><50 m grid) and bird monitoring. Results of the herb layer study is presented here. The forest is Helleboro odori - Fagetum, with transitions towards ravine and scree forests. Herb layer cover is medium to high, with mostly Fageta- lia elements. Submediterranean species: Tamus communis, Ruscus aculeatus, R. hypoglossum, Helleborus odorus, Lathyrus venetus, Asperula taurina are also characteristic. Forest type indicators are: Galium odoratum, Galeobdolon luteum;, on the steepest and more rocky parts Melica uniflora, Mercurialis perennis and Festuca dry- meia; and Carex pilosa closest to the stream. 95 species, amongst them 14 protected ones were found, most of them in the hillside-hilltop ecotone. Most important are the more thousand exemplars of Doronicum orientale reported only from two places of Mecsek Hills before. Further protected species are: Aruncus dioicus, Asperula taurina subsp. leucanthera, Cephalanthera damasonium, Dryopteris dilatata, Epipactis purpurata, Epipac- tis helleborine, Galanthus nivalis, Polystichum setiferum, Helleborus odorus, Hepatica nobilis, Lathyrus venetus, Ruscus hypoglossum, Ruscus aculeatus, Tamus communis. Other species worth to mention are: Festuca drymeia, Veronica mon- tana. More than 30% percentage of specialist and competitor species indicates a very good naturalness state, comparable with forest reserves.
