Savaria - A Vas Megyei Múzeumok értesítője 24/2. (1997) (Szombathely, 1997)

Kondorossy, Előd–Harmat, Beáta: Contributions to the Heteroptera fauna of Őrség Landscape Conservation Area

SA VARIA, 24/2 (Pars historico-naturalis) When we compare these data with other data originated from Hungarian fauna researches it can be proved that more species are known from Őrség than from the Hortobágy National Park (BAKONYI and VÁSÁRHELYI, 1981; VÁSÁRHELYI, 1983) but in the Kiskunság National Park (BAKONYI and VÁSÁRHELYI, 1987; AUKEMA, 1990) and in the Duna-Dráva National Park (KONDOROSY and FÖLDESSY, in press) much more species were found (because it has been more effectively researched and the territory is greater, too). The reasons of it could be that the suborders of Nepomorpha and Gerromorpha (water bugs) were not intensively studied and the number of species in the taxa of Lygaeidae and Cydnidae is very low, too (because samples collected by pitfall trap were not used or the heteropterous material were not prepared). Naturally, the Mediterranean species living in warmer areas of Hungary (e.g. Kiskunság NP, Hortobágy NP) usually are absent from őrség (Table 2.). That is why the number of species is really lower than it was in the Kiskunság NP. We can also study the data from zoogeographical point of view (Table 2.). Type of distribution Őrség Hungary Type of distribution sp. % sp. % Palearctic+Holarctic 64 28,57 119 16,08 European+W estern-pal earctic 43 19,20 150 20,27 Euro-siberian+West-euro-siberian 74 33,04 197 26,62 Euro-mediterranean 33 14,73 126 17,03 Mediterranean 5 2,23 88 11,89 Ponto-mediterranean 2 0,89 51 6,89 Cosmopoliten 3 1,34 7 0,95 Others 0 0 2 0,27 Total (with known distribution-type) 224 100,00 740 100,00 Boreo-montan, from the above 17 7,59 37 5,00 Questionable 0 0 56 All Hungarian species 796 Table 2.: Zoogeographical distribution of Heteroptera species in Őrség and in Hungary The species with palearctic or holarctic distribution usually include the most frequent bugs, therefore, they have naturally very high per cent of contribution in the area. It is remarkable that the Mediterranean species are only in a low number here. It means that this area has only very few Mediterranean attribute. This results in that the ratio of the Euro-siberian (and especially the Boreo-montaneous) species is quite high in Őrség Landscape Conservation Area. This corresponds with the climatical and botanical data proving that this area is subalpin although it is situated at a low altitude above the sea-level. 27