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Heavy-metal contents in pupae of Bupalus piniarius (Lepidoptera: Geometridae) and Panolis flammea (Lepidoptera: Noctuidae) near an industrial source



Heavy-metal contents in pupae of Bupalus piniarius (Lepidoptera: Geometridae) and Panolis flammea (Lepidoptera: Noctuidae) near an industrial source



Environmental Entomology 19(3): 481-485



The concentrations of copper (Cu), iron (Fe), nickel (Ni), and cadmium (Cd) were analyzed in the pupae of Bupalus piniarius (L.) and Panolis flammea (Denis and Schiffermuller) reared on needles collected from the same sites with different heavy-metal levels. Metal analysis on an individual basis revealed speecific differences between the two common defoliators of the Scots pine (Pinus sylvestris L.). The highest heavy-metal concentrations in B. piniarius (Cu 137, Fe 83, Ni 2.1, Cd 0.9 microgg(-1) and P. flammea (Cu 89, Fe 59, Ni 5.3, Cd 2.9 microgg(-1) were recorded in those reared on needles from the vicinity of the emission source in Finland. The decreasing trend of the log-transformed metal concentrations followed a linear regression model with increasing distance from the factories. The ratio between the concentration of copper and iron in the insects and that in the needles was proprotionally lower in heavily polluted areas. Cadmium bioaccumulation was observed in P. flammea but not in B. piniarius.

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Accession: 001850296

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DOI: 10.1093/ee/19.3.481


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