Ábrahám Levente: Szünbiológiai tanulmányok - Natura Somogyoensis 10. (Kaposvár, 2007)

Bleicher Krisztina, Markó Viktor & Orosz András: Species composition of Cicada (Auchenorrhyncha) communities on the surrounding vegetation of apple orchards in Hungary - Kabóca közösségek hazai almásokban

BLEICHER К., MARKO V. & OROSZ A.: SPECIES COMPOSITION OF CICADA 137 In the conventionally treated orchards - in Szigetcsép and Vamosmikola - broad-spectrum insecticides: mainly organophosphorous insecticides and some pyrethroids, organochlorine and carbamate compounds were used. In organic orchard - in Nyírtura only "green" pesticides were used containing copper and sulphur. In abandoned orchards were not used any pesticides. The localities of the investigated areas are shown on UTM map in Fig. 1. The commonness of the cicada species in the surroundings of the orchards was approached in three ways: (1) by counting the proportion of individuals of a species in the total catch of the areas; (2) by calculating the sum of the scores, where the seven most abundant species collected in one area were placed in decreasing order, and the dominant species, with highest relative abundance scored 7, the second one 6 etc. The scores from different orchards were summarized by species. (3) Thirdly, the presence or absence of the species in the surrounding of the orchards was investigated. The identification of the collected cicadas based on the works of OSSIANNILSSON (1978, 1981, 1983) and RIBAUT (1936, 1952). The males were identified on species and most of the female individuals on genus level. In Table 1 the data identified on genus level are shown only, if male individuals belonging to that genus have not been collected in the investigated orchard. The scientific names of the cicadas in present paper follow the nomenclature compiled by HOLZINGER et al. (1997). Results and discussion Altogether 10 146 individuals belonging to 109 species had been found in the Malaise traps in the surrounding of three investigated apple orchards. The list of the collected cicada species is shown in Table 1. The number of collected specimens in the three investigated areas and the total species richness are given in Table 2. The species richness varied between 47 and 67. The average species richness was 57. The relative abundance values and total scores of species are shown in Table 2. The most common species in the investigated areas, in decreasing order of their relative abundance (%) in the total catch were the followings: Eupteryx calcarata (37.5 %), Kybos virgator (11 %), Empoasca decipiens (11 %), Eupteryx cyclops (11 %), Eupteryx atropunctata (5.5 %), Ribautiana tenerrima (4.8 %), Edwardsiana rosae (2.3 %), Eupteryx stachydearum (1.8 %), Kybos populi (1.5 %), Edwardsiana crataegi (1.3 %) and Edwardsiana lamellaris (1.1%). These 11 species comprised 90 % of the total catch. The species, which dominated the cicada assemblages in the three habitats (with the total scores) collected by Malaise traps, were: Eupteryx calcarata (17), YLmpoasca decipiens (17), Kybos virgator (8), Eupteryx atropunctata (8), Kybos populi (8), Eupteryx cyclops (6), Edwardsiana crataegi (5), Ribautiana tenerrima (4), Empoasca solani (3), Cicadella viridis (3), Edwardsiana rosae (2) and Hephathus nanus (2). The species Eupteryx calcarata, Edwardsiana crataegi, Kybos virgator, Empoasca decipiens, Edwardsiana rosae, Kybos populi, Eupteryx atropunctata, Eupteryx cyclops, Ribautiana tenerrima, Eupteryx stachydearum, Empoasca solani and Cicadella viridis were found in all three areas (Table 1). It can be concluded, that during our study in the surroundings of apple orchards, the most frequently found species were Eupteryx calcarata, Kybos virgator, Empoasca decipiens, Eupteryx cyclops, Eupteryx atropunctata, Ribautiana tenerrima, Edwardsiana rosae, Kybos populi and Edwardsiana crataegi.