Počet záznamů: 1  

Maternal influence on eggshell maculation: implications for cryptic camouflaged eggs

  1. 1.
    SYSNO ASEP0458785
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevMaternal influence on eggshell maculation: implications for cryptic camouflaged eggs
    Tvůrce(i) Duval, C. (GB)
    Cassey, P. (AU)
    Lovell, P.G. (GB)
    Mikšík, Ivan (FGU-C) RID, ORCID, SAI
    Reynolds, S.J. (GB)
    Spencer, K.A. (GB)
    Zdroj.dok.Journal of Ornithology. - : Springer - ISSN 0021-8375
    Roč. 157, č. 1 (2016), s. 303-310
    Poč.str.8 s.
    Jazyk dok.eng - angličtina
    Země vyd.US - Spojené státy americké
    Klíč. slovabody condition ; camouflage ; Coturnix coturnix japonica ; eggshell maculation ; Protoporphyrin
    Vědní obor RIVCB - Analytická chemie, separace
    CEPGA15-01948S GA ČR - Grantová agentura ČR
    Institucionální podporaFGU-C - RVO:67985823
    UT WOS000368610900030
    DOI10.1007/s10336-015-1278-2
    AnotaceEgg camouflage may explain the adaptive significance of avian eggshell pigmentation in ground-nesting species. Eggshell maculation (spots) is predominantly due to protoporphyrin, but both biliverdin (antioxidant) and protoporphyrin (pro-oxidant) may be present in spotted eggshells. Because of their role in oxidative stress, the deposition of eggshell pigments might be condition-dependent. However, because of the fitness benefits of eggshell coloration, cryptic eggshell appearance should be strongly conserved in ground-nesting species regardless of female condition and eggshell pigment concentrations. We investigated whether Japanese quails (Coturnix coturnix japonica) maintained eggshell maculation under food restriction. We quantified eggshell maculation (i.e., percentage of spot coverage) using digital photography, and both protoporphyrin and biliverdin concentrations of eggs laid by females either on a food-restricted or an ad libitum diet. Females on a high quality diet, which are known to decrease the deposition of eggshell protoporphyrin, decreased eggshell maculation compared with food-restricted females that maintained it. For the first time, we propose an experimental study which suggests that eggshell maculation depends on female body condition and that manipulating eggshell maculation may be the strategy used by females to potentially optimize egg camouflage.
    PracovištěFyziologický ústav
    KontaktLucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400
    Rok sběru2017
Počet záznamů: 1  

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