Subtitle:

Acta Ornithologica, vol. 35, no. 2 ; Wieloletnia zmienność długości skrzydła w populacji trzcinniczka ; Wing length in reed warbler

Contributor:

Polska Akademia Nauk. Muzeum i Instytut Zoologii

Publisher:

Muzeum i Instytut Zoologii PAN

Place of publishing:

Warszawa

Description:

Bibliogr. p. 180-181 ; P. [173]-182 : ill. ; 27 cm ; Abstract in Polish. Taxa in Latin

Type of object:

Journal/Article

Abstract:

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.

Relation:

Acta Ornithologica

Volume:

35

Issue:

2

Start page:

173

End page:

182

Detailed Resource Type:

Article

Format:

application/pdf

Resource Identifier:

oai:rcin.org.pl:45263

Source:

MiIZ PAN, call no. P.257, Vol. 35, No 2 ; MiIZ PAN, call no. P.4568, Vol. 35, No 2 ; click here to follow the link

Language:

eng ; pol

Rights:

Creative Commons Attribution BY 3.0 PL license

Terms of use:

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: ; -

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:

Open