Metadata language
Reproduction and feeding success of the red-necked grebe Podiceps grisegena at fish ponds, SE Poland
Subtitle:Acta Ornithologica, vol. 35, no. 1 ; Rozród i sukces łowiecki perkoza rdzawoszyjego na stawach rybnych w południowo-wschodniej Polsce
Creator: Contributor:Polska Akademia Nauk. Muzeum i Instytut Zoologii ; Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)
Publisher:Muzeum i Instytut Zoologii PAN
Place of publishing: Date issued/created: Description: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
Type of object: Subject and Keywords:Red-necked Grebe ; breeding biology ; Poland ; congresses ; foraging success ; breeding success ; fish ponds ; grebes ; birds ; Podiceps grisegena ; Podicipedidae ; Aves
Abstract: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.
Relation: Volume: Issue: Start page: End page: Resource type: Detailed Resource Type: Format: Source: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
Language: Rights: Terms of use:Copyright-protected material. May be used within the limits of statutory user freedoms
Digitizing institution:Museum and Institute of Zoology of the Polish Academy of Sciences
Original in:Library of the Museum and Institute of Zoology of the Polish Academy of Sciences
Projects co-financed by:Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund
Access: