Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 315327
Title Dynamics and stratification of protozoa in the organic layer of a Scots pine forest
Author(s) Janssen, M.P.M.; Heijmans, G.J.S.M.
Source Biology and Fertility of Soils 26 (1998)4. - ISSN 0178-2762 - p. 285 - 292.
Department(s) Institute for Forestry and Nature Research
Publication type Refereed Article in a scientific journal
Publication year 1998
Abstract Fluctuations in soil biota abundance in different organic layers of a Scots pine forest in The Netherlands were studied by bimonthly counts during 2.5 years. The counts were made using litterbags which were placed in the litter (L), fragmentation (F) and humus (H) layers at the start of the experiment. Results from the L layer were also compared with results from litter which was renewed every 2 months (L') to study colonisation. In this study the results for amoebae, flagellates and ciliates are presented. The highest numbers of soil protozoa were found in the L layer during most sampling occasions. The H layer contained the lowest numbers. The L layer also showed higher numbers than the L' litterbags which were renewed every 2 months. Fluctuations in abundance could partly be explained by fluctuations in moisture content. Moisture content in the litterbags was rather constant throughout the experiment, although occasionally moisture contents of 10% and 80% were observed. Fluctuations in moisture content in the L layer were often larger than in the F and H layers. Flagellates were the most abundant group, reaching numbers of several hundred thousands to several millions per gram fresh weight on various occasions. Amoebae often reached numbers of between tens of thousands and several hundred thousands. Ciliates only reached numbers of up to several thousands.
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