Uherkovich Ákos: A Villányi-hegység botanikai és zoológiai alapfelmérése (Dunántúli Dolgozatok Természettudományi Sorozat 10., 2000)

Sólymos Péter: Comparative malacological survey of the Szársomlyó and the Fekete Hill (Villány Hills, S Hungary). - Összehasonlító malakológiai vizsgálatok a Szársomlyón és a Fekete-hegyen (Villányi-hegység)

Dunántúli Dolg. Term. Tud. Sorozat 10 111-120 Pécs, 2000 Comparative malacological survey of the Szársomlyó and the Fekete Hill (Villány Hills, S Hungary) Péter SÓLYMOS SÓLYMOS, P.: Comparative malacological survey of the Szársomlyó and the Fekete Hill (Villány Hills, S Hungary). Abstract. Mollusc assemblages of the Szársomlyó and the Fekete Hill (18 sampling sites) were analysed on the basis of 72 soil samples with equal volumes taken in the years 1996-1999. The sampling sites were classified according to the results of the multivariate statistical procedures and diversity statistics. Species being characteristic to the cluster groups were found. The habitat patterns of these character species are correspond to the pattern of plant covering. Introduction Previous works to survey the mollusc fauna of the Villány Hills have been concentrated mainly on the Szársomlyó or made a comparison between the Mecsek and the Szársomlyó. These previous results are deeply discussed in the other malacological paper of this book. There have not been quantitative comparisons between the different areas and habitats of the hills. This study aims the quantitative comparison of the mollusc assemblages of the different habitats of the Szársomlyó and the Fekete Hill. Methodology Study area and sampling The study area is located in S Hungary, about 10 km N of the Hungarian-Croatian border. The Szársomlyó and the Fekete Hill are the part of the Duna-Dráva National Park. The climate in the region has a strong submediterranean character expressed in the annual temperature (10.5 °C) and in the amount of precipitation (670-690 mm/yr) which has two maximums (MAROSI & SOMOGYI 1990). The hills are built of various kinds of limestones and dolomite, the hillfoots and the plateaus are covered with loess and loesslike sediments. In this region the most common forest association of the N slopes is oak-hornbeam (Asperulo taurinae-Tilietosum) which is extrazonal here (site 5, 11 and 16). The plant association of the ridge regions is the ecoton-like Aconito authorae-Fraxinetum orni (site 14 and 17). The closed association of the S slope of the Fekete Hill is oak forest (Orno-Quercetum pubescentis) (site 15 and 18). The karst shrub forest of the Szársomlyó (Inulo spiraeifoliae-Quercetum pubescentis) is closed on the ridge and on the N slope (site 1 and 2) and the plant cover is transitional on the S slope (site 6, 7 and