Počet záznamů: 1
A sum of its individual parts? Relative contributions of different eggshell regions to intraclutch variation in birds
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SYSNO ASEP 0364252 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název A sum of its individual parts? Relative contributions of different eggshell regions to intraclutch variation in birds Tvůrce(i) Polačiková, L. (CZ)
Hauber, M. E. (US)
Procházka, Petr (UBO-W) RID, ORCID, SAI
Cassey, P. (AU)
Honza, Marcel (UBO-W) RID, SAI, ORCID
Grim, T. (CZ)Celkový počet autorů 6 Zdroj.dok. Journal of Avian Biology. - : Wiley - ISSN 0908-8857
Roč. 42, č. 4 (2011), s. 370-373Poč.str. 4 s. Jazyk dok. eng - angličtina Země vyd. DK - Dánsko Klíč. slova blunt egg pole ; Great reed warblers ; parasitic eggs ; discrimination Vědní obor RIV EG - Zoologie CEP GD524/05/H536 GA ČR - Grantová agentura ČR IAA600930605 GA AV ČR - Akademie věd LC06073 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z60930519 - UBO-W (2005-2011) UT WOS 000295051800011 EID SCOPUS 80053052139 DOI https://doi.org/10.1111/j.1600-048X.2011.05202.x Anotace Egg rejection in several species of hosts is based on cues only at the blunt pole and not at the sharp pole of the foreign and own eggshell. We investigated whether intraclutch variation is confined to a specific egg pole in species where the extent of intraclutch variation in the overall egg appearance is known to positively covary with either egg rejection rate or the probability of being parasitized. Pooling measurements of brightness across the whole egg surface led to statistically non-significant results and masked positive correlations of blunt pole brightness with egg rejection or parasitism risk, respectively. In contrast, patterns of blue chroma were important across the whole egg. We advocate the use of a combination of region-specific and whole-eggshell based colour metrics and manipulations in cognitive, perceptual, and ecological studies of foreign egg rejection. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2012
Počet záznamů: 1