The odonate fauna of small meadow pools was recorded for several years. Even the permanent pools cenoses are relatively poor; Lestidae are completely lacking. Pyrrhosoma nymphula and Erythromma najas dominate in clean waters, whereas Ischnura elegans withstands a certain degree of pollution. Adult Anisoptera are absent, save for Anax imperator, which established territories even at the smallest bodies of water.