Original title: Energetic budget of three species of bibionid larvae
Translated title: Energetika larev tří druhů čeledi Bibionidae
Authors: Frouz, Jan ; Šustr, Vladimír ; Kalčík, Jiří
Document type: Papers
Conference/Event: Contributions to soil Zoology in Central Europe I. Central European Workshop on Soil Zoology /7./, České Budějovice (CZ), 2003-04-14 / 2003-04-16
Year: 2005
Language: eng
Abstract: [eng] [cze]
Food consumption, defecation, assimilation and production were studied in three species of bibionid larvae (.i.Bibio marci, B. pomonae, Penthetria holosericea./i.) feeding either on leaf litter or their own excrements. Assimilation efficiency of larvae feeding on leaf litter was in all species higher then assimilation efficiency of the same species feeding on their own excrements. Larvae reared on excrements also lost weight, which indicated that excrements were insufficient as an exclusive source of energy. In .i. B. marci, P. holosericea./i. the effect of temperature on assimilation efficiency was studied. In .i. P. holosericea./i. assimilation efficiency decreased with increasing temperature. This trend was not observed in .i. B. marci. B. marci./i. was fed on pure cellulose to test if cellulose can serve as the only source of energy. Mortality of larvae feeding on cellulose was significantly higher than of those feeding on leaf litter and did not differ from starving larvae. Konzumace potravy, defekace, asimilace a produkce byla sledována u larev tří druhů muchnic (.i.Bibio marci, B. pomonae, Penthetria holosericea./i.), které se živily jednak opadem, jednak vlastními exkrementy. Asimilační účinnost při konzumaci opadu byla větší než při konzumaci exkrementů. Se stoupající teplotou klesala asimilační účinnost. Pokusy s čistou celulózou ukazují, že celulóza nemůže být exkluzivním zdrojem energie pro larvy muchnic.
Keywords: bibionid larvae; consumption; food
Project no.: CEZ:AV0Z60660521 (CEP)
Host item entry: Contributions to Soil Zoology in Central Europe I. Proceedings of the 7th Central European Workshop on Soil Zoology, ISBN 80-86525-04-X

Institution: Institute of Soil Biology AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0115199

Permalink: http://www.nusl.cz/ntk/nusl-32702


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