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Chemical disturbances effects on community structure of rove beetles (Coleoptera: Staphylinidae) in Hungarian agricultural fields

Domenii publicaţii > Biologie + Tipuri publicaţii > Articol în revistã ştiinţificã


Editorial: NORTH-WESTERN JOURNAL OF ZOOLOGY, vol 3/2, p.67-74, 2007.


The effects of broad spectrum and selective insecticides on rove beetles (Coleoptera: Staphylinidae) were compared in apple orchards and wheat fields from Hungary. The most common species in orchards were: Omalium caesum, Dexiogyia corticina, Mocyta orbata, Coprochara bipustulata, Sphenoma abdominale, Drusilla canaliculata, Styloxys insecatus, Palporus nitidulus, Heterothops dissimilis, Mocyta fungi, Pella limbata, Pycnota vicina and Hemitropia sordida.The number of species was high in control plots without any insecticide application and less in integrated pest management plots, where selective insecticides were used. In the wheat fields a total of 798 individuals belonging to 20 species were collected. The most widely occurring species were: Staphylinus caesareus, Tachyporus hypnorum, Philonthus cognatus, Aloconota gregaria, Tachyporus chrysomelinus and T. obtusus. Although species from Tachyporus spp. were dominant in cumulative samples, the activity density decreased considerably for the second half of the vegetation period. The fields’ structure and the treatments have a significant role in forming the dominance of species. Also the dynamics of each species is highly influenced by the disturbances. These could be explained with different microclimatic and humidity tolerance of the species. The greater mobility of staphylinids may enable them to avoid pesticide treatments in individual fields. These factors (natural weed cower, the presence of the hedgerows and the flying ability of the

Cuvinte cheie: apple, broad spectrum, conventionally, selective insecticides, wheat