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Community structure of soil-litter macrofauna in shelterbelt and adjacent crop field

Olechowicz E.

Polish Journal of Ecology

2004

Vol. 52, nr 2

135-153

Studies were carried out in 1999 and 2000 in the vicinity of Turew near Poznań (West Poland) and dealt with the composition, density and biomass of soil-litter macrofauna with special reference to dipteran larvae in the agricultural landscape. Sites were located on a 7-years old mid-field shelterbelt and on adjacent field with maize crop in the first and wheatcrop in the second year of study and - on 9 various patches of vegetation within the mid-field shelterbelt. Studies carried out along the transect: the shelterbelt (S) - ecotone (E) - field 10 m (F 10) - field 50 m (F 50) demonstrated a decline of: 1) animal density (10 times) and biomass (30 times) of total macrofauna and (80 times) of dipteran larvae, 2) taxonomic richness and biodiversity measured with the H` index, 3) individual weight of the entire macrofauna, of dipteran larvae,saprophagous animals and predators so that the individuals became smaller with the distance from the shelterbelt, 4) similarity of macrofauna communities in terms of composition and dominance structure, with increasing distance between plots. Close relationship was found between plant cover and soil-litter macrofauna. Species composition, density, biomass and trophic structure of soil invertebrate community depended on tree or herb species. Those soil animals and especially dipteran larvae were a sensitive indicator of small-scale habitat changes.