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 Feeding behaviour of the terrestrial isopod Porcellionides pruinosus Brandt, 1833 (Crustacea, Isopoda) in response to changes in food quality and contamination
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5325

title: Feeding behaviour of the terrestrial isopod Porcellionides pruinosus Brandt, 1833 (Crustacea, Isopoda) in response to changes in food quality and contamination
authors: Loureiro, Susana
Sampaio, Alexandra
Brandão, Ana
Nogueira, António J. A.
Soares, Amadeu M. V. M.
keywords: Porcellionides pruinosus
Leaf type
Heavy metals
Leaf contamination
Terrestrial isopods
issue date: 2006
publisher: Elsevier
abstract: 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. (c) 2006 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/10773/5325
ISSN: 0048-9697
publisher version/DOI: http://dx.doi.org/10.1016/j.scitotenv.2006.05.023
source: Science of the Total Environment
appears in collectionsCESAM - Artigos
BIO - Artigos

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