Diet composition of Myotis myotis (Chiroptera, Vespertilionidae) in western Poland: results of fecal analyses

Th e diet of greater mouse-eared bats (Myotis myotis) was investigated by analysis of 900 droppings taken from 8 diff erent bat colonies in western Poland. Th ree taxonomic orders (Coleoptera, Lepidoptera, and Diptera) and representatives of 2 other groups of arthropods (Chilopoda: Lithobiidae and Arachnida: Araneae) were identifi ed in the droppings. Coleoptera was the most abundant prey found in fecal samples in all seasons. Study sites diff ered signifi cantly in the composition of prey, which probably refl ects the local foraging conditions for M. myotis.