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Studies on Soil Fauna in Central Europe, Proceedings of the 6th Central European Workshop on Soil Zoology
Tajovský, Karel ; Balík, Vladimír ; Pižl, Václav
The 6th Central European Workshop on Soil Zoology was held in České Budějovice, Czech Republic, in April 23-25, 2001. At the workshop, attended by 58 participants from Austria, the Czech Republic, Germany, Poland, Russia and Slovakia, 49 presentations were made dealing with the results of soil zoological research carried out in Central Europe and also in Russia and Nigeria. Additionally, diverse topics of soil zoology, ecology and faunistic as well as possible cooperation between the zoologists have been discussed. Increasing numbers of students and young scientists were characteristic for the meeting. Thus the CEWSZ6 has continued in the tradition of previous five meetings held in České Budějovice since 1992 (1st - May 14-15, 1992; 2nd - September 30-October 1, 1993; 4th - April 23-24, 1997; 5th - April 27-30, 1999).
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Earthworm communities in spruce forest soils - effects of some natural and anthropogenic factors
Pižl, Václav
Earthworm fauna was analysed and compared in 22 natural and man-made spruce forests located in seven regions of the Czech Republic. 14 species of earthworms were identified; among which acidotolerant epigeic species Dendrobaena octaedra, D. illyrica, Dendrodrilus rubidus, Dendrobaena vejdovskyi and Lumbricus rubellus were most frequently recorded. Poor earthworm communities (1-4 species, density 1,2 - 38,4 ind.m-2) inhabited majority of sites. Nevertheless, strong differences occured in their species composition reflecting both the geographical position of sites and the origin of individual forests. Higher density and/or per-site number, of species were always connected with the presence of specific habitats such as water sources, brooks, wood or bark heaps, etc. Earthworm faunas in damaged mountain spruce forests tended to be more abundant than in undamaged forests and to have higher number of species. Denser earthworm populations developed at sites where dead trees were left than at clear-cut ones.
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Mycotic flora in vermicultures and intestines of Eisenia andrei
Nováková, Alena ; Pižl, Václav
In spring and autumn 2000, microscopic fungi associated with fresh and processed substrates and with the intestines of Eisenia andrei were studied in three vermiculture plants differing in their productivity. 119 species and 6 forms of microscopic fungi were isolated. Of those, 97 taxa were recorded from vermiculture substrates and 76 taxa from worm intestines. In vermiculture substrates, Aspergillus fumigatus, A. niger, Geotrichum candidum, Penicillium expansum and P. roquefortii were dominant among taxa isolated by soil dilution plate method, and Rhizopus stolonifer was most frequently isolated by soil washing technique. A. fumigatus, Mucor circinelloides f. circinelloides and P. expansum predominated in the intestines of earthworms. Processed vermiculture substrates regularly yielded higher numbers of cultivable micromycetes (CFU-counts) than fresh ones. The CFU-counts of earthworm intestines were close to those of processed substrates in two vermiculture plants studied. In the third plant, however, intestinal CFU-count was the same as that found in fresh vermiculture substrate.
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