Ergebnisse von Bodentieruntersuchungen im Reinhardswald

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Abstract
Summary: The soil fauna of the Sababurg Nature Reserve in Reinhardswald and the adjoining commercial woodlands was studied from December 1957 to August 1958 using the Tullgren method as modified by Schimitschek. The physical characteristics of the soil were also studied.Mites formed the greater part of the fauna, followed by Collembola and then Diptera. The majority of the mites were Oribatids and their highest percentage was 83.613 % in April in a commercial spruce wood. Trombidiforms reached their greatest density (35.644%) during July in oak leaf mould. The highest percentage of Acaridiae (23.954°/o) and Mesostigmata (19.152%) also occurred in July, in beech leaf mould and grass under ferns respectively. All other groups of animals except mites, Collembola and Uiptera decreased in numbers. True earthworms (Lumbricidae) occurred only in beech leaf mould, whilst Enchytraeids could be found in all the other soils studied. Myriapods were present throughout in small numbers but formed a relatively larger part of the fauna of beech and oak leaf moulds.The density of mites and Collembola was dependent on the physical characteristics of the soil in both the developed and the undeveloped parts of the Sababurg Forest, particularly on the air capacity and the amount of organic matter. The effect of soil pH and human activities on the mite and Collembolan populations could not be established here; there was a high population density of microarthropods in soils with an air capacity of more than 15 % and an organic matter content greater than 25%.

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