Document Detail

Evaluation of some sources of variability in using small mammals as pollution biomonitors.
MedLine Citation:
PMID:  18313721     Owner:  NLM     Status:  MEDLINE    
In the present study the effects of gender, age and nutritional status on tissue concentrations of some trace elements (Zn, Cu, Mn, and Cr) in wood mouse (Apodemus sylvaticus), Spanish shrew (Sorex granarius), and great white-toothed shrew (Crocidura russula) were investigated. Four sampling stations were selected for the study: a restored mine dump, an area characterised by ultrabasic soil and two sites in oak woods in the vicinity of a power plant. Gender had no effect on the tissue concentrations of the metals studied, except for the concentration of Zn in brain tissue from C. russula. The relative age of the individuals was estimated on the basis of crystalline lens weight in mice and dental abrasion in shrews, as body weight was considered a poor indicator of age because of the strong interindividual overlap in the populations. Age was only significantly (and negatively) correlated with the concentration of Cr in livers of mice from one station, a finding that may indicate physiological stress on growth at this site. The nutritional status was estimated from the body mass index; the relationships between this index and metal concentrations for both A. sylvaticus and C. russula were negative, which can be attributed to the weight-specific metabolic rate that leads to a relatively low uptake of metals per unit of body weight. As there was no relation between duration of exposure and concentrations of metals in the organs analysed, age should not be included as a variable factor in the condition index.
X I González; J R Aboal; J A Fernández; A Carballeira
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-03-07
Journal Detail:
Title:  Chemosphere     Volume:  71     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  2008 May 
Date Detail:
Created Date:  2008-04-28     Completed Date:  2008-07-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  2060-7     Citation Subset:  IM    
Area de Ecología, Facultad de Biología, Univ. de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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MeSH Terms
Body Weight / drug effects
Cadmium / analysis
Copper / analysis
Environmental Monitoring / methods*
Environmental Pollution / analysis*
Manganese / analysis
Time Factors
Trace Elements / analysis*
Zinc / analysis
Reg. No./Substance:
0/Trace Elements; 7439-96-5/Manganese; 7440-43-9/Cadmium; 7440-50-8/Copper; 7440-66-6/Zinc

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