Abstract
Lumbricus rubellus and Denrodrilus rubidus are acid-tolerant epigeic species, which are often the only species inhabiting the poorly vegetated and heavily contaminated soils associated with many abandoned mine sites. Although both species probably consume similar food materials, observations on worms collected from acidic and calcareous mine sites indicate that they accumulate significantly different metal concentrations in their tissues: the larger L. rubellus accumulates more Zn and Ca, but less Pb and Cd than D. rubidus. The aim of the present study was to analyze these two epigeic species sampled from ten diverse sites to determine whether the inter-species differences in relative metal accumulation is a general feature of these sympatrics.
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