title: A Cu tolerant population of the earthworm Dendrodrilus rubidus (Savigny, 1862) at Coniston Copper Mines, Cumbria, UK.
abstract: Dendrodrilus rubidus were sampled from a mine spoil soil at Coniston Copper Mine, an abandoned Cu mine in Cumbria, UK and a Cu-free control site. Earthworms were maintained for 14d in both Kettering loam and a Moorland soil amended with Cu nitrate. Mortality, condition index, weight change and tissue concentration were determined. In both soils D. rubidus native to the mine site were able to tolerate significantly higher soil Cu concentrations (MWRT, p<or=0.001), and exhibited significantly less change in weight (t-test, p<or=0.001) and a lower loss in condition (t-test, p<or=0.001) than control earthworms. For a given soil Cu concentration tissue Cu concentrations were greater in the mine site earthworms. Low cocoon production and viability from the mine site population prevented the determination of toxicity parameters on the F1 generation and may be an indicator of the cost of tolerance to the population.
authors: Department of Soil Science, School of Human and Environmental Sciences, University of Reading, Whiteknights, Reading, Berkshire RG6 6DW, UK.
authors: R E
authors: RE
authors: Arnold
authors: M E
authors: ME
authors: Hodson
authors: C J
authors: CJ
authors: Langdon
mesh_terms: D000818:Animals; D003300:Copper / Q000633:toxicity*; D004351:Drug Resistance; D004739:England; D007220:Industrial Waste; D008906:Mining; D009835:Oligochaeta / Q000187:drug effects* / Q000502:physiology; D012098:Reproduction / Q000187:drug effects; D012989:Soil Pollutants / Q000633:toxicity*; D018675:Toxicity Tests / Q000379:methods
chemical_list: D007220:Industrial Waste; D012989:Soil Pollutants; D003300:Copper