Język metadanych
Long-term variability of wing length in a population of the reed warbler Acrocephalus scripaceus
Inny tytuł:Acta Ornithologica, vol. 35, no. 2 ; Wieloletnia zmienność długości skrzydła w populacji trzcinniczka ; Wing length in reed warbler
Twórca: Współtwórca:Polska Akademia Nauk. Muzeum i Instytut Zoologii
Wydawca:Muzeum i Instytut Zoologii PAN
Miejsce wydania: Data wydania/powstania: Opis:Bibliogr. p. 180-181 ; P. [173]-182 : ill. ; 27 cm ; Abstract in Polish. Taxa in Latin
Typ obiektu: Temat i słowa kluczowe:Reed Warbler ; Eurasian Reed Warbler ; Poland ; Łowicz ; wings ; measurement ; biometric variability ; natural selection ; birds ; Acrocephalus scirpaceus ; Sylviidae ; Aves ; 1972-80
Abstrakt:4166 measurements of the wing length of Reed Warblers were collected during 9 breeding and pre-migratory periods in Central Poland. In the studied population significant differentiation in the wing length among seasons was shown in adult and juvenile birds. Multiple regression and path analysis showed that weather factors (temperature and precipitation) during breeding period determine the long-term variation in the wing length in both adult and young birds. Changes in wing length were explained by natural selection and habitat selection. In breeding and pre-migratory periods, temperature and precipitation influence changes in food availability, and thus affect optimisation of energetic expenses on feeding. It was revealed that long-winged individuals are best adapted to cold and rainy conditions, while the short-winged ones - to warm and dry summers. Weather conditions in the period of birds arrival to the breeding grounds may be connected with differentiation in availability of optimal places for establishing territories. In that way they influence intraspecific competition for breeding territories and the effectiveness of their occupation by morphometrically different birds.
Czasopismo/Seria/cykl: Tom: Zeszyt: Strona pocz.: Strona końc.: Typ zasobu: Szczegółowy typ zasobu: Format: Źródło:MiIZ PAN, call no. P.257, Vol. 35, No 2 ; MiIZ PAN, call no. P.4568, Vol. 35, No 2 ; kliknij tutaj, żeby przejść
Język: Prawa:Creative Commons Attribution BY 3.0 PL license
Zasady wykorzystania:Copyright-protected material. [CC BY 3.0 PL] May be used within the scope specified in Creative Commons Attribution BY 3.0 PL license, full text available at: ; -
Digitalizacja:Museum and Institute of Zoology of the Polish Academy of Sciences
Lokalizacja oryginału:Library of the Museum and Institute of Zoology of the Polish Academy of Sciences
Dofinansowane ze środków:Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund
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