Ekologicko-faunistická analýza společenstev pavouků na odvale Dolu Odra

Abstract

In the years 2009 and 2010, was carried out arachnological research on the Odra Coal Mine in the City of Ostrava. On the six positions were found in total of 103 spider species, belonging to 21 families. The pitfall traps method (with formaldehyde), sweeping vegetation and beating was used for collecting of spiders. The dominance of species, relictness of occurrence and thermopreference was studied. Research was compared with research in the years 1975, 1976, 1984 and 2008. We compared species diversity of the arachnocenosis of study site, the thermopreference and relictness of occurrence.