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Trace metal concentrations in hairs of three bat species from an urbanized area in Germany

Journal of Environmental Sciences 2015年第5期27卷 184-193页

作者： Lucie Flache Sezin Czarnecki Rolf-Alexander Düring uwe kierdorf Jorge A.Encarna??o Mammalian Ecology Group Department of Animal Ecology and Systematics Justus Liebig University Giessen Institute of Soil Science and Soil Conservation Justus Liebig University Giessen Department of Biology University of Hildesheim

Metal-contaminated soils and sediments are widespread in urbanized areas due to atmospheric deposition close to emission sources. These metals are bio-available for organisms, e.g., insects, and accumulate in food chains of insectivorous *** bats, which live in urban regions and ingest large amounts of food relative to their body mass, are at risk of being poisoned due to the accumulation of trace metals. To determine species-specific trace metal contents in bats from urban environments, hair samples were analyzed by ICP-OES. Observed trace metal concentrations were related to species-specific foraging habitat, prey spectrum and degree of synanthropy. The species studied were Pipistrellus pipistrellus, Myotis daubentonii and Nyctalus noctula. P. pipistrellus showed the highest concentrations of lead and zinc and slightly higher concentrations of cadmium than the other two species, which was related to its high degree of synanthropy with foraging habitat mostly located in cities. In contrast, N. noctula displayed the highest contents of manganese and copper. The reason might be found in its prey spectrum, as N. noctula feeds mainly on beetles that are caught in cultured areas. Trace metal concentrations determined in hair samples of M. daubentonii ranged between the values of P. pipistrellus and N. noctula, probably reflecting an intermediate level of *** correlations were observed between the concentrations of cadmium and lead and those of manganese and copper. Hair samples from bats are suitable monitoring tools to study trace metal exposure and can be used to determine differences in trace metal levels between species.

关键词： Trace metals Urban bats Foraging habitat Prey spectrum Synanthropy ICP-OES

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