Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F11%3A00358873" target="_blank" >RIV/68081766:_____/11:00358873 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s00114-011-0790-3" target="_blank" >http://dx.doi.org/10.1007/s00114-011-0790-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00114-011-0790-3" target="_blank" >10.1007/s00114-011-0790-3</a>

Result language

angličtina

Original language name

Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine

Original language description

Here we tested two main assumptions of the sexually selected egg coloration hypothesis: (1) whether the intensity of eggshell blue-green chroma (BGC) reflects female quality; and (2) whether males make their decisions on the level of parental care according to the intensity of eggshell BGC. In the polygynous study species, the great reed warbler, females simultaneously paired with the same male, compete for his nest attendance and could benefit from signalling their quality through egg coloration. However, we found no association between the variation in eggshell BGC and measures of female quality. Moreover, males did not adjust their investment in nest defence in relation to the eggshell BGC. We conclude that blue-green egg coloration in this open-nesting passerine is unlikely to have a signalling function. Rather, the large colour variation among clutches of individual females may depend on yearly fluctuations in environmental conditions.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Naturwissenschaften

ISSN

0028-1042

e-ISSN

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Volume of the periodical

98

Issue of the periodical within the volume

6

Country of publishing house

DE - GERMANY

Number of pages

7

Pages from-to

493-499

UT code for WoS article

000290689000003

EID of the result in the Scopus database

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