Document Detail

Feeding behaviour of the terrestrial isopod Porcellionides pruinosus Brandt, 1833 (Crustacea, Isopoda) in response to changes in food quality and contamination.
MedLine Citation:
PMID:  16842839     Owner:  NLM     Status:  MEDLINE    
Soil decomposition is mainly dependent on the nature and characteristics of organic matter within the soil, the environmental conditions and the activity of microorganisms and soil fauna. Isopods play an important role in decomposition through litter fragmentation and stimulating and/or ingesting fungi and bacteria. The aim of this study was to jointly evaluate the effect of different food types and the effect of heavy metal contamination of those foods through isopod feeding performance assays. These studies used the terrestrial isopod Porcellionides pruinosus. After feeding with different leaf types for the study on feeding performance, alder leaves were chosen for the contamination experiments. Feeding parameters like consumption, assimilation, egestion and growth ratios were calculated and compared among treatments and food type. Lower quality food decreased isopods performance. Exotic food types were shown to be less preferred than alder or oak leaves. Contaminated food also resulted in a decrease in performance among the feeding parameters studies, although isopods can tolerate in certain cases high amounts of heavy metals. For this reason it is possible that in future this crustacean can be used as bioindicators of soil contamination or in the evaluation of contaminated sites or remediation processes.
Susana Loureiro; Alexandra Sampaio; Ana Brandão; António J A Nogueira; Amadeu M V M Soares
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-07-13
Journal Detail:
Title:  The Science of the total environment     Volume:  369     ISSN:  0048-9697     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-09-04     Completed Date:  2006-11-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  119-28     Citation Subset:  IM    
Department of Biology, University of Aveiro, 3810-193 Aveiro. Portugal.
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MeSH Terms
Feeding Behavior / drug effects
Food Contamination
Isopoda / drug effects*,  physiology
Metals, Heavy / toxicity*
Soil Pollutants / toxicity*
Reg. No./Substance:
0/Metals, Heavy; 0/Soil Pollutants

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