Acta Ornithologica, vol. 38, no. 1 ; Wielkość zniesienia i udatność lęgów sikor ubogich w zależności od rozmiarów dziupli w lesie pierwotnym ; Hole parameters and clutch size of marsh tit
Polska Akademia Nauk. Muzeum i Instytut Zoologii
Bibliogr. p. 71-72 ; P. [64]-72 : ill. ; 27 cm ; Abstract in Polish. Taxa in Latin
Marsh Tit, a secondary hole nesting bird, was studied in an area with superabundant holes (the primeval forest in the Białowieża National Park, E. Poland). It was not expected to find any relationship between hole size and either clutch size or breeding performance. Analysis of about 350 nest histories collected over 13 years revealed, as expected, no difference between breeding in medium-sized or large holes, but birds using small holes (lowest 25th percentile) laid smaller clutches, fledged marginally fewer young and lost more broods than the birds using the two larger size classes. However, this variation was not due to differences in the timing of laying or the age of females across the hole classes. It is suggested that the use of small holes persisted because of the relatively low fitness energetic costs of making such a sub-optimal choice.
MiIZ PAN, call no. P.257-38-1 ; MiIZ PAN, call no. P.4568-38-1 ; click here to follow the link
Creative Commons Attribution BY 3.0 PL license
Museum and Institute of Zoology of the Polish Academy of Sciences
Library of the Museum and Institute of Zoology of the Polish Academy of Sciences
Program Operacyjny Innowacyjna Gospodarka, lata 2010-2014, Priorytet 2. Infrastruktura strefy B + R ; Unia Europejska. Europejski Fundusz Rozwoju Regionalnego
Oct 2, 2020
Jun 10, 2014
431
https://rcin.org.pl./publication/55594
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