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Acta Ornithologica, vol. 35, no. 1 ; Rozród i sukces łowiecki perkoza rdzawoszyjego na stawach rybnych w południowo-wschodniej Polsce
Polska Akademia Nauk. Muzeum i Instytut Zoologii ; Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)
Muzeum i Instytut Zoologii PAN
Referat wygłoszony na Second Meeting of the European Ornithologists' Union ; Bibliogr. p. 88 ; P. [85]-89 : ill. ; 27 cm ; Abstract in Polish. Taxa in Latin
Investigations were carried out in three fish-pond complexes in 1993-1999. Clutches were initiated 21 April-9 July (mean 11 May). The average clutch size was 3.83 ą 0.44. In total 66.3% breeding pairs reared fledglings (n = 163). The population studied had a higher hatching success (83.4%) compared to data reported in literature but fledging success (1.29 young per breeding, and 1.94 per successful pair) was lower than those documented in Sweden and Russia. 22.3% of dives observed during foraging bouts were successful. Ponds, which seemed suitable for breeding, were less frequently occupied by breeding pairs when stocked after mid-May than ponds stocked earlier. The proportion of nests which produced fledglings was lower in ponds used for recreation than in ponds without such activities. Removal of littoral vegetation using heavy machinery was responsible for destroying of nearly one third of clutches initiated after 15 June.
MiIZ PAN, call no. P.257, Vol. 35, No 1 ; MiIZ PAN, call no. P.4568, Vol. 35, No 1 ; click here to follow the link
Copyright-protected material. May be used within the limits of statutory user freedoms
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
Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund
Oct 2, 2020
May 22, 2014
560
https://rcin.org.pl./publication/61269
Jarosik, Joanna (1960– ) Marszałek, Jarosław
Goc, Michał (1949– )
Domaniewski, Janusz (1891–1954)
Švažas, Saulius Stanevičius, Vitas
Kosiński, Ziemowit
Kloskowski, Janusz Grela, Przemysław Krogulec, Jarosław Gaska, Michał Tchórzewski, Marek
Jenni, Lukas
Kot, Henryk (1951– )