Janus Pannonius Múzeum Évkönyve (1962) (Pécs, 1963)

Havranek László: A Mecsek-hegység barlangi denevérfaunája

THE CHIROPTERA FAUNA OF THE CAVES OF THE MOUNTAIN MECSEK L. HAVRANEK Author's investigations in 1961 and 1962 on the Chiroptera fauna of the environs Pécs were concentrated on the cave of Abaliget and on the cave Kőlyuk at Mánfa. During these investigations eight species of bats were collected. Five of them (Rhinolophus ferrum-equinum, Myotis myotis, M. hattereri oxignathus, and Miniopterus schreibersi) occure in the cave of Abaliget. The cave Kőlyuk at Mánfa contains six species: Myotis myotis, M. nattereri. M. oxygnathus, Pipistrellus nathusii.. and Miniopterus schreibersi. It is uncertain wether Eptesicus serotinus observed before the cave Kőlyuk reside in the cave Therefore is is marked with a note of interro gátion in Table I. as a member of the fauna of this cave. Barbastellus barbastellus was occasionally observed in Pécs. New f aunistic data in author's collections are Myotis nattereri for the cave Kőlyuk, and Pipistrellus nathusii collected in the cave Kőlyuk for the mountain Mecsek. Likewise new faunistic datum, is Barbastellus barbastellus demonstrated first by the author from the mountain Mecsek. The species collected may be distributed into three groups according their biotop : 1. Troglobionts: Rhinolophus ferrum-equinum Miniopterus schreibersi 2. Troglocheimads : Myotis nattereri Myotis myotis Myotis oxygnathus Barbastellus barbastellus 3. Pseudotroglobionts: Pipistrellus nathusii The dominant species in both caves is Myotis oxygnathus. It was observed already by several authors the considerable variability of this species. Author demonstrated on the basis of the distribution of variation the presence of a populative variation and gives a formula for the number of teeth: X'! = X —X". This paper is a part of the investigation of the batpopulations of South Hungary the results of which will be published later. The author is greatly indebted to departmental head Antal Gebhardt for his useful advices, to academic Gábor Kolosváry for making possible the researches, to candidate Gyula Éhik for the revision of the comparative material, and to his friend István Szalafai for assistance durig the collections and for his valuable data. Table I. Occurrence of Chiroptera in the cave of Abaliget and in the cave of Mánfa during 1845— 1961. * = data of collections о = occurs continually + = subfossile data ? doubtful occurrence A = cave of Abaliget M = cave Kőlyuk at Mánfa Figure 1. Percentile distribution of Chiroptera species in the cave of Abaliget. Figure 2. Ration of males and females in cave of Abaliget. Figure 3. The change of number of bats in the cave of Abaliget (tél = winter, tavasz = spring, nyár = summer, ősz = autumn) Figure 4. Percentile distribution of Chiroptera species in the cave Kőlyuk at Mánfa. Photo 1. Scull of Myotis oxygnathus with normal set of teeth. Photo 2. Mandible of Myotis oxygnathusi with normal set of teeth. Photo 3. Diasthemic scull of Myotis oxygnathus. Photo 4. Mandible of Myotis oxygnathus with diasthemic maxilla. 4*