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In feeding experiments, leaf litter of different tree species and isopod feces derived from these leaf litter materials were offered to the common woodlouse, Porcellio scaber . Consumption indices were used to elucidate the nutritional significance of coprophagy. Consumption rates of P. scaber...
Anthropogenic N deposition affects litter decomposition and soil organic matter (SOM) storage through multiple mechanisms. Microbial community responses to long-term N deposition were investigated in a sugar maple-dominated forest in northern Michigan during the 1998–2000 growing seasons....
Isoelectric focusing was investigated to detect esterases of the pest slug Arion lusitanicus in the crop contents of predatory carabid beetles. The method is exceptionally well suited for field studies, as it is fast, cheap, easy to apply, and almost species-specific. The identification of A....
Sulphur distribution with an insight in S-organic fractions was studied in volcanic-ash derived soils of Chile (Typic Dystrandepts, Palehumult) by isolating each fraction and measuring S directly by instrumental elemental analysis. S-pattern followed closely C and N distribution in these soils....
Organic acids have been hypothesised to play a central role in long-term soil pedogenic processes such as podzolisation and also in short-term rhizosphere processes such as nutrient mobilisation. Their spatial and temporal patterns in soil, however, are poorly understood. This study was designed...
The short-term effects of loose and hardened wood ash on the coniferous forest humus layer microbes were studied 1–3 years after fertilization. The experiment was performed using two fertilization levels (3 and 9 t ash ha −1 ) and repeated in two coniferous forest stands of different site...
We report on a novel mechanism by which arbuscular mycorrhizal fungi may be able to modify a sub-optimal growth environment to their advantage by secreting the glycoprotein glomalin, which is highly correlated with soil aggregate water stability. Here we used glass beads of different sizes to...
Martens (Soil Biol. Biochem. 33 (2001) 701) recently reported that Jenkinson and Oades (Soil Biol. Biochem. 11 (1979) 193) method for measuring adenosine 5′ triphosphate (ATP) in soil leads to serious underestimations. We have now compared the Jenkinson and Oades extraction technique, which...
The high indigenous soil organic carbon content, root biomass, and microbial populations in prairie soils provide a source of carbon dioxide (CO 2 ) that is important in the carbon budget of grasslands. Soil chambers were used to measure soil CO 2 flux from a grazed mixed-grass prairie (GP),...
Short-term variations in abiotic and biotic environmental conditions modify microbial metabolism. These effects were studied in an arable soil during the oat straw decomposition. Cumulative CO 2 evolution was significantly higher when soil was subjected weekly to drying–rewetting cycles (DR) or...
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