Litter decomposition by soil fauna: effect of land use in agroecosystems.

Soil fauna plays a key role in organic matter decomposition. Litter decomposition depends on the relationships of soil fauna and microorganisms as well as climate and litter quality. The decomposer community is sensitive to land use.

Macro and mesofauna soil food webs in two temperate grasslands: responses to forestation with .

We studied the effects of land use change from grassland to spp. plantation on macro and mesofauna soil food webs in two sites in the Rolling Pampas. We expected to find differences in the parameters that characterize the structure of soil food webs, as the implantation of implies changes in the characteristics of the resources and the microhabitat conditions.