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Enchytraeidae oligochaeta of forest ecosystems 1. density biomass and production


, : Enchytraeidae oligochaeta of forest ecosystems 1. density biomass and production. Ekologia polska 31(1): 9-56

The species composition was determined and the changes in density and biomass were analyzed for Enchytraeidae inhabiting 4 forest ecosystems. In all these ecosystems Cognettia sphagnetorum accounted for 68-98% of the total density and for 71-98% of the total biomass of this group. Production of the dominant species and of the species sexually reproducing was estimated. C. sphagnetorum produced biomass of an energy content ranging from 17.3-94.4 kJ .cntdot. m-2 .cntdot. yr-1, depending on the season and plant community. The P:B ratio for this species varied from 2.4-3.8.

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