Tytuł pozycji:
Fenologia i powodzenie lęgów u populacji muchołówki białoszyjej, Ficedula albicollis (Temm.) w Puszczy Niepołomickiej (południowa Polska)
Bibliografia na stronie 227
Strony 219-228 : ilustracje ; 24 cm
Pages 219-228 : illustrations ; 24 cm
Streszczenie w języku polskim
Abstract in Polish
The Collared Flycatcher, Ficedula albicollis (Temm.) arrives in the Niepołomice Forest during the period from April 10th-20th, depending on the early spring temperature. The start of clutches is affected by the temperature prevailing not more than 10 days before the first egg is laid. The average size of 120 complete hatches was 6.1 eggs (min. 3, max. 8 eggs), clutches containing 6 eggs being most frequently observed (55.8%), In 1970 losses from the time the first eggs were laid up to the advanced fledgling stage was 28.2%. In 1968 and 1969 losses were far higher (49.2% and 71.6%), which is explained as primarily due to working methods. In 1970 population increase was 4.7 nestlings per breeding pair.
Bibliographical references (page 227)