Počet záznamů: 1
Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine
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SYSNO ASEP 0358873 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Blue-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 autorů 4 Zdroj.dok. Science of Nature : Naturwissenschaften. - : Springer - ISSN 0028-1042
Roč. 98, č. 6 (2011), s. 493-499Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova Acrocephalus arundinaceus ; Blue-green chroma ; Egg colour ; Female condition ; Great reed warbler ; Polygyny Vědní obor RIV EG - Zoologie CEP IAA600930605 GA AV ČR - Akademie věd IAA600930903 GA AV ČR - Akademie věd LC06073 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z60930519 - UBO-W (2005-2011) UT WOS 000290689000003 EID SCOPUS 79959877113 DOI 10.1007/s00114-011-0790-3 Anotace 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. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2012
Počet záznamů: 1