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  • 1
    Electronic Resource
    Electronic Resource
    Myriapod and isopod communities in soils contaminated by heavy metals in northern France (2000)
    Oxford, UK : Blackwell Science Ltd
    European journal of soil science 51 (2000), S. 0 
    Details
    ISSN: 1365-2389
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Soil invertebrates suffer from contamination of the soil by heavy metals. We have studied the effects of contamination by cadmium, zinc and lead on their communities in soils in northern France by comparing polluted land with non-contaminated sites. We have followed the seasonal variations and effects of soil properties. Saprophagous invertebrates (Diplopoda, Isopoda) and Chilopoda were sampled by pitfall-trapping from February to November in fairly contaminated areas. In addition, a Berlese extraction of the litter in two very highly contaminated sites was conducted during autumn; animals were also trapped during June in the same locations. The most active period for myriapods was spring (April and May), whereas isopods were abundant from April to the end of summer. No clear relation was found relating dominant species or number of myriapods or isopods to concentration of heavy metal in the little-contaminated soils. The dominant species seemed not to be related to pollution but to vegetation or soil characteristics. In the most contaminated sites, with metalliferous grassland and a thick undecomposed litter layer, a threshold in contamination values seemed to be reached: no isopods or millipedes were found, but only Chilopoda and Symphyla.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2389.2000.00317.x
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  • 2
    Electronic Resource
    Electronic Resource
    Cadmium and Lead Kinetics During Experimental Contamination and Decontamination of the Centipede Lithobius forficatus L. (1996)
    Springer
    Archives of environmental contamination and toxicology 31 (1996), S. 350-353 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. Kinetics of cadmium decontamination in Lithobius forficatus, performed in autumn experiments showed a decrease in Cd level, from about 30 mg/kg dw at the beginning of the experiment to about 12 mg/kg dw ten weeks later. Kinetics of cadmium contamination in animals showed in a first time a dramatic increase in Cd levels (up to a mean 80 mg/kg dw). Then a regular decrease was observed, although the animals were regularly fed with cadmium contamined larvae. Difference between animals fed or not with cadmium containing diet ranged from 18 mg/kg dw to only 8 mg/kg dw at the end of the experimental series. Experiments conducted either in autumn or in spring showed comparable aspects in the evolution of level curves, if not the same values. Natural decontamination of lead in animals showed results that were not convincing, depending at least of the dose level present in animals. Therefore, when experimental intoxication was performed, a natural detoxification process took place where Pb levels in animals first increased dramatically and then regularly decreased which was assumed to be evidence of an active excretion. Moreover, animals living in an artificially lead polluted soil and fed with lead-free diet also showed a rapid increase in Pb level followed by a plateau. From these studies, it can be concluded that these centipedes can be contaminated both by food intake and by ion regain through the tegument
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900118
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Cadmium and lead kinetics during experimental contamination and decontamination of the centipede Lithobius forficatus L. (1996)
    Springer
    Archives of environmental contamination and toxicology 31 (1996), S. 350-353 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Kinetics of cadmium decontamination in Lithobius forficatus, performed in autumn experiments showed a decrease in Cd level, from about 30 mg/kg dw at the beginning of the experiment to about 12 mg/kg dw ten weeks later. Kinetics of cadmium contamination in animals showed in a first time a dramatic increase in Cd levels (up to a mean 80 mg/kg dw). Then a regular decrease was observed, although the animals were regularly fed with cadmium contamined larvae. Difference between animals fed or not with cadmium containing diet ranged from 18 mg/kg dw to only 8 mg/kg dw at the end of the experimental series. Experiments conducted either in autumn or in spring showed comparable aspects in the evolution of level curves, if not the same values. Natural decontamination of lead in animals showed results that were not convincing, depending at least of the dose level present in animals. Therefore, when experimental intoxication was performed, a natural detoxification process took place where Pb levels in animals first increased dramatically and then regularly decreased which was assumed to be evidence of an active excretion. Moreover, animals living in an artificially lead polluted soil and fed with lead-free diet also showed a rapid increase in Pb level followed by a plateau. From these studies, it can be concluded that these centipedes can be contaminated both by food intake and by ion regain through the tegument.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00212673
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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