Tytuł pozycji:
Comparative analysis of food of owls in agrocenoses
Bibliografia na stronach 438-439
Streszczenie w języku polskim
Pages 431-439 : illustrations ; 24 cm
Strony 431-439 : ilustracje ; 24 cm
Food composition of three species of owls (Strix aluco, Asio otus and Tyto alba) has been analysed in an agricultural area with mass occurrence of common vole. The effect of various densities of this rodent on the food composition of owls has been examined. Also the seasonal variability of the diet and the variability due to environment are discussed. Specialization of owls in capture of voles and its consequences are discussed.
Abstract in Polish
Bibliographical references (pages 438-439)