Biological and Temporal Variations of Trace Element Concentrations in the Moss Species Scleropodium purum (Hedw.) Limpr. |
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Authors: | Sebastien Leblond Sandrine Gombert Jean Louis Colin Remi Losno Catherine Rausch De Traubenberg |
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Institution: | (1) Muséum national dHistoire naturelle, RDDM, USM 505, 12 rue Buffon, 75005 Paris, France;(2) LISA, Faculté des Sciences, Université Paris 7, Paris 12 et UMR CNRS 7583, 61, Avenue Général de Gaulle, 94010 Créteil, France |
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Abstract: | Over a period of one year, the moss Scleropodium purum was sampled every two weeks in a French rural area to determine the levels of Li, Na, Al, Si, P, Ca, V, Mn, Fe, Zn, Ba, Hg, and Pb. The element distribution in the moss shoot was studied throughout the year. An apical bioconcentration was discovered for Na, P, Ca, Mn, and Zn, whereas higher levels were found in the basal fraction for Li, Al, Si, V, Fe, Ba, Hg, and Pb. A significant variation of element concentrations was observed during the sampling period. In the apical part Li, Al, Si, V, Fe, Ba, and Hg show maximum levels in the summer and minimum in the autumn. The same pattern was found with Ca and Mn in the whole plant, whereas Na showed opposite fluctuations. |
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Keywords: | atmospheric deposition bioaccumulation bryophyte metal temporal variations |
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