Počet záznamů: 1  

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

  1. 1.
    SYSNO ASEP0358873
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevBlue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine
    Tvůrce(i) Honza, Marcel (UBO-W) RID, SAI, ORCID
    Požgayová, Milica (UBO-W) RID, SAI, ORCID
    Procházka, Petr (UBO-W) RID, ORCID, SAI
    Cherry, M. I. (ZA)
    Celkový počet autorů4
    Zdroj.dok.Science of Nature : Naturwissenschaften. - : Springer - ISSN 0028-1042
    Roč. 98, č. 6 (2011), s. 493-499
    Poč.str.7 s.
    Jazyk dok.eng - angličtina
    Země vyd.DE - Německo
    Klíč. slovaAcrocephalus arundinaceus ; Blue-green chroma ; Egg colour ; Female condition ; Great reed warbler ; Polygyny
    Vědní obor RIVEG - Zoologie
    CEPIAA600930605 GA AV ČR - Akademie věd
    IAA600930903 GA AV ČR - Akademie věd
    LC06073 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
    CEZAV0Z60930519 - UBO-W (2005-2011)
    UT WOS000290689000003
    EID SCOPUS79959877113
    DOI10.1007/s00114-011-0790-3
    AnotaceHere 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.
    PracovištěÚstav biologie obratlovců
    KontaktHana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
    Rok sběru2012
Počet záznamů: 1  

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