Inny tytuł:

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

Współtwórca:

Museum and Institute of Zoology, Polish Academy of Sciences

Wydawca:

Museum and Institute of Zoology, Polish Academy of Sciences

Miejsce wydania:

Warsaw

Opis:

pg(s) 145-151

Typ obiektu:

Journal/Article

Abstrakt:

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.

Czasopismo/Seria/cykl:

Acta Ornithologica

Tom:

41

Zeszyt:

2

Strona pocz.:

145

Strona końc.:

151

Szczegółowy typ zasobu:

Journal

Format:

application/pdf

Identyfikator zasobu:

oai:rcin.org.pl:65689

Źródło:

MiIZ PAN, call no. P.257 ; MiIZ PAN, call no. P.4568 ; kliknij tutaj, żeby przejść

Język:

eng

Język streszczenia:

pol ; eng

Prawa:

Rights Reserved - Restricted Access

Zasady wykorzystania:

Copyright-protected material. Access only on terminals at the Museum and Institute of Zoology of the Polish Academy of Sciences, may be used within the limits of statutory user freedoms.

Lokalizacja oryginału:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Dostęp:

Closed