Feeding, energy flow and soil turnover in the desert isopod, Hemilepistus reaumuri
- 1 January 1976
- journal article
- research article
- Published by Springer Nature in Oecologia
- Vol. 24 (1), 57-69
- https://doi.org/10.1007/bf00545487
Abstract
The desert woodlouse Hemilepistus reaumuri is one of the most abundant macroscopic invertebrates in North Africa, the Arabian steppes, semi-desert and desert, and the Negev desert Israel. The main purposes of our study were: To investigate the feeding behaviour of H. reaumuri in the field and the laboratory, with special attention to the importance of soil and perennials in the isopods' diet. To estimate annual energy flow and soil turnover by the isopods and to relate it to the role of isopods in the desert ecosystem. The results of field observations and feeding experiments in the laboratory show: That desert isopods are saprovores, herbivores and microbivores. That in order to survive the isopod should include soil particles and or soil minerals when feeding on vegetation. Annual ingestion was 10.3–38.6 kcals/m2, 3–12% of the available dead organic matter, and soil turnover 28.5–105.7 g/m2. It was hypothesized that by ingestion and defaecation of organic matter and inorganic soil particles, H. reaumuri alters the structure of the decomposition substrate and increase the rate of decomposition in the desert ecosystem.Keywords
This publication has 17 references indexed in Scilit:
- Food Utilization of Dung-Eating Aphodius Larvae (Scarabaeidae)Oikos, 1974
- Energy and Nutrient Dynamics of Spider and Orthopteran Populations in a Grassland EcosystemEcological Monographs, 1971
- Energy Budget of Larvae of Hyalophora cecropia (Lepidoptera) fed Acer negundoOikos, 1971
- Aspects of Nutrition and the Metabolism of Copper in IsopodsAmerican Zoologist, 1968
- Relation of Body Size to Food Intake, Oxygen Consumption, and Trace Element Metabolism in Forest Floor ArthropodsEcology, 1968
- Radio Tracer Demonstration of Isopod HerbivoryEcology, 1965
- The Ecology of Armadillidium vulgare (Isopoda: Oniscoidea) in California Grassland: Food, Enemies, and WeatherEcological Monographs, 1963
- Energy Flow of a Salt Marsh Grasshopper PopulationEcology, 1960
- Energy Dynamics of a Food Chain of an Old‐Field CommunityEcological Monographs, 1960
- The Distribution of Woodland IsopodsOikos, 1957