Inter-Nest Variability in the Egg to Hatchling Mass Ratio in the Common Pochard Aythya ferina: Does Female Body Mass Matter?

Hořák, David; Albrecht, Tomáš; Klvaňa, Petr; Musil, Petr

doi:10.3161/068.042.0110

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Title: Inter-Nest Variability in the Egg to Hatchling Mass Ratio in the Common Pochard Aythya ferina: Does Female Body Mass Matter?

Abstract:

Offspring survival and subsequent fitness are assumed to increase with offspring size. Although the relationship between egg size and young size in birds has attracted considerable scientific attention, to our knowledge no study so far has investigated differences among nests with respect to this relationship. The aim of this study was to find out 1) whether some inter-nest variation in the egg mass — young mass relationship exists among nests of Common Pochards, and 2) whether such a variation could be attributed to the body mass of the female measured in the last 5 days of incubation. Egg mass explained a higher portion of the variability in young mass in nests of heavier females. Those females produced smaller young for eggs of a given size. We suggest a trade-off between current and future reproduction as being the evolutionary mechanism underlying the relationship between female body mass and hatchling body mass.

Relation:

Acta Ornithologica

Volume:

Issue:

Start page:

End page:

Detailed Resource Type:

Journal

Format:

text/xml

Resource Identifier:

oai:rcin.org.pl:55630 ; 10.3161/068.042.0110

Source:

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

Language:

eng

Language of abstract:

pol ; eng

Rights:

Rights Reserved - Free Access

Terms of use:

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

Access:

Open

Subject and keywords:

Common Pochard Aythya ferina life history precocial bird reproduction Głowienka zwyczajna, głowienka, kaczka rdzawogłowa kaczka czerwonoszyja kaczka kasztanowata

Object collections:

Last modified:

Oct 2, 2020

In our library since:

Jul 29, 2015

Number of object content downloads / hits:

All available object's versions:

https://rcin.org.pl./publication/75703

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Acta Ornithologica
- Acta Ornithologica Musei Zoologici Polonici
- Acta Ornithologica

Edition name	Date
Inter-Nest Variability in the Egg to Hatchling Mass Ratio in the Common Pochard Aythya ferina: Does Female Body Mass Matter? / Hořák, David; Albrecht, Tomáš; Klvaňa, Petr; Musil, Petr	Oct 2, 2020