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Öğe Contribution to the aphid fauna of the Ordu province with first record of an exotic aphid species, Euceraphis gillettei Davidson, 1915, in Turkey(Tubitak Scientific & Technological Research Council Turkey, 2022) Goeruer, GaziDuring the last 2 decades, aphid species have widely distributed outside their original geographical regions. North America originated Euceraphis gillettei was determined as a new contribution to the Turkey aphid fauna and in turn regarded as an exotic aphid species in Turkey. In addition, all of the determined species are new records for study area. Findings of the present study are in accordance with the predictions made by various aphidologist recently, which it is not going to be a surprise to add more species to the Turkish aphid fauna with a detailed study.Öğe The effects of heavy metal contamination in host plants to cabbage aphid performance and morphology(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2007) Goeruer, GaziThe potential impacts of different heavy metal accumulations in host plants to cabbage aphid, Brevicoryne brassciae, was investigated by applying copper, lead, zinc and cadmium separately. Significant effects of the heavy metals were found on both the performance and morphology of the aphid population, which were significantly reduced when reared on contaminated cabbage plants, compared with control. There were also differences among the heavy metal treatments, and Cd caused the highest reduction in both performance and morphology, while Cu resulted in least decrease. The implications of these findings for the environmental pollution, and its subsequent effects for the aphid-host plant relationships, were discussed. The results showed that aphid-host plant relationship is a good candidate for studying, heavy metal pollution effects to ecological communities.