Subtitle:

Barwa skorupki jaj u gąsiorka: związek z rozmiarami jaja i potencjalne funkcje

Contributor:

Museum and Institute of Zoology, Polish Academy of Sciences

Publisher:

Museum and Institute of Zoology, Polish Academy of Sciences

Place of publishing:

Warsaw

Description:

pg(s) 145-151

Type of object:

Czasopismo/Artykuł

Abstract:

Despite numerous studies on avian eggs, the function of eggshell patterning remains largely unknown. Using a museum collection of Red-backed Shrike clutches, we estimated the repeatability of characteristics describing the intensity and contrast of egg pigmentation, as well as egg size and shape. Digitalized photographs of eggs were used for all measurements. Repeatability was highest for overall pigmentation intensity and overall pigmentation contrast (R = 0.81 and R = 0.82 respectively). Lower values were recorded for egg breadth (R = 0.66) and shape (R = 0.57). These findings suggest that eggshell patterning, as well as the variables describing egg size and shape, may respond to natural selection. Among the possible functions of this trait, condition signalling within species and mimicry are the most probable. To obtain more evidence of this, however, further studies in wild populations are required.

Relation:

Acta Ornithologica

Volume:

41

Issue:

2

Start page:

145

End page:

151

Detailed Resource Type:

Czasopismo

Format:

application/pdf

Resource Identifier:

oai:rcin.org.pl:65689

Source:

MiIZ PAN, sygn. P.4568 ; MiIZ PAN, sygn. P.257 ; click here to follow the link

Language:

eng

Language of abstract:

pol ; eng

Rights:

Prawa zastrzeżone - dostęp ograniczony

Terms of use:

Zasób chroniony prawem autorskim. Korzystanie dozwolone wyłącznie na terminalach Muzeum i Instytutu Zoologii PAN w zakresie określonym przez przepisy o dozwolonym użytku.

Original in:

Biblioteka Muzeum i Instytutu Zoologii PAN

Access:

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