Enchytraeids as indicator organisms for chemical stress in terrestrial ecosystems

This review article surveys the available data on enchytraeid sensitivity t oward chemical stress, and the effects of chemical stress on enchytraeid co mmunities in terrestrial ecosystems. The factors affecting bioavailability of stressors to enchytraeids and the nature of direct and indirect effects that may occur are discussed, and the importance of laboratory tests and fi eld studies for the evaluation of toxic effects is underlined. The existing data on specific types of stressors such as pesticides' metals, fertilizer s, and industrial and domestic chemicals often show clear responses of ench ytraeids, and in many cases interspecific differences in sensitivity are re corded. It is concluded that, although in several fields additional data ar e required, there are good perspectives for the use of enchytraeids as indi cator organisms. (C) 2001 Academic Press.