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

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About: Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. 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. (en)
Title	Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine (en)
skos:prefLabel	Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine (en)
skos:notation	RIV/68081766:_____/11:00358873!RIV12-AV0-68081766
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA600930605), P(IAA600930903), P(LC06073), Z(AV0Z60930519)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Procházka, Petr Honza, Marcel Požgayová, Milica
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav biologie obratlovců AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	188530
http://linked.open...ai/riv/idVysledku	RIV/68081766:_____/11:00358873
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Acrocephalus arundinaceus; Blue-green chroma; Egg colour; Female condition; Great reed warbler; Polygyny (en)
http://linked.open.../riv/klicoveSlovo	Acrocephalus arundinaceus Blue-green chroma Egg colour Female condition Great reed warbler Polygyny
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[D57F666CD883]
http://linked.open...i/riv/nazevZdroje	Naturwissenschaften
http://linked.open...in/vavai/riv/obor	EG
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Evolution of antiparasitic strategies of selected hosts towards avian brood parasitism Cues, recognition and responses in a coevolutionary arms race between brood parasites and their hosts Biodiversity Research Center
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	98
http://linked.open...iv/tvurceVysledku	Cherry, M. I. Honza, Marcel Požgayová, Milica Procházka, Petr
http://linked.open...ain/vavai/riv/wos	000290689000003
http://linked.open...n/vavai/riv/zamer	Biodiverzita a ekologie obratlovců: Strategie ochrany a využívání přírodních populací
issn	0028-1042
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/s00114-011-0790-3

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