The effect of macroarthropods patrolling soil surface on soil nematodes: a field experiment in a mown meadow

Wasilewska, Lucyna

doi:ISSN 1505-2249

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Title: The effect of macroarthropods patrolling soil surface on soil nematodes: a field experiment in a mown meadow

Abstract:

A field experiment was designed to estimate the effect of soil surface patrolling by macroarthropods on organic matter content in soil. One of the components of this experiment was the soil nematode community – density, trophic and dominance structure, the diversity and maturity indices. These parameters were compared between two types of mesocosms: accessible and inaccessible to macroarthropods. The experiment was performend under natural environmental conditions and did not reduce the diversity of the biota characteristic of the ecosystem. Most parameters of nematodes did not vary significantly between mesocosms. Differences betwecn mesocosms observed over the 5-month period of each of the two experiments (1992 and 1993) concerned mainly, bacterivorous nematodes and, within this trophic group, colonizers. The densities of the taxon Rhabditis s.l. were statistically higher in the mesocosms accessible to macroarthropods, and the proportion of colonizers (r-strategists s.l.) among bacterivorous nematodes was also higher.

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