RESULTS OF 2 YEARS INVESTIGATIONS OF HEAV Y-METAL CONTENT IN FLESHFLIES AND THEIR HOSTS (DIPTERA, SARCOPHAGIDAE ANNELIDA, LUMBRICIDAE GASTROPODA, HELICIDAE)

Heavy metal content in fleshflies and their hosts (earthworms, snails) was investigated in a contact zone between 3 biogeographical district s (Hercynian, Carpathian and Pannonian) of Central Moravia during 2 su bsequent years. AAS method revealed deal of Cd, Pb, Cr, Mn, Zn and Fe (mg/kg-1 of dry matter). After statistic evaluation, results show that quantitative proportions between content of individual HM remained un changed, whereas their mutual relations are differentiated and statist ically significant in numerous cases. Differences of HM impact in fles hflies from various habitats were also significant (with the exception of Pb) correspondingly to state of ecological disintegration of indiv idual habitats. HM impact was observed also in protected habitats show ing clear relation to neighbouring landscape. Simultaneous investigati ons in HM content in fleshflies and their hosts make it possible to es timate HM content in hosts basing on regression equations checked.