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Intraspecific Variation in Calcium and Strontium Accumulation / Depuration in an Epigeic Earthworm Species

Herbert, Rob and West, H.K. and Davies, M.S. and Morgan, A.J. (2001) Intraspecific Variation in Calcium and Strontium Accumulation / Depuration in an Epigeic Earthworm Species. European Journal of Soil Biology, 37 (4). pp. 329-332. ISSN 1164-5563

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Abstract

The accumulation and depuration of Ca and Sr were measured in populations of the earthworm Lumbricus rubellus, originating from calcareous and acidic soils, following laboratory exposure to a Sr-rich soil and a control soil. Populations from acidic soils accumulated more Sr than those from calcareous soils, when placed in a Sr-rich soil. After transferal from a Sr-rich soil to Sr-free soil, all populations depurated the majority of their body Sr (84 %-96 %) whilst maintaining their body Ca concentration; the Sr excretion was greater in the populations originating from acidic soils. ICP-MS cation analysis demonstrated the majority of Ca and Sr to be located in anterior alimentary canal and the majority of Sr was lost from this region.

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Uncontrolled Keywords: calcium, earthworm, population, differentiation, strontium
Subjects: S Agriculture > S Agriculture (General)
Divisions: Academic Departments > Institute of Science and the Environment
Depositing User: Rob Herbert
Date Deposited: 03 Dec 2009 14:47
Last Modified: 03 Dec 2009 14:47
URI: https://eprints.worc.ac.uk/id/eprint/758

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