Popis: |
Dragonflies of small anthropogenic water bodies were studied in Cracow City (south Poland) in the years 2001–2004. 38 species were recorded, of which 24 were autochthonous and 6 probably autochthonous. Many southern and southeastern species occurred, of which the most interesting are: Aeshna affinis (Vander L.), Orthetrum albistylum (Sel.), Sympetrum fonscolombii (Sel.) and Crocothemis erythrea (Brulle). Also important are the tyrphobiontic and tyrphophilous species: Coenagrion hastulatum (Charp.), Lestes sponsa (Hansem.), Sympetrum danae (Sulz.), Leucorrhinia dubia (Vander L.) and L. rubicunda (L.). The importance of these secondary biotopes for the protectionof dragonflies is discussed. |