About: Are blue eggs a sexually selected signal of female collared flycatchers? A cross-fostering experiment

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About: Are blue eggs a sexually selected signal of female collared flycatchers? A cross-fostering experiment Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Studie nepodpořila hypotézu podle níž by samice ptáků mohly svým partnerům signalizovat svou kvalitu fenotypem vejce a přimět je tak k větším rodičovským investicím. (cs) Impressive variation in egg colouration among birds has puzzled evolutionary biologists for a long time. The most frequently studied selective forces moulding egg colouration-predation and brood parasitism-have either received little empirical support or may play a role in only a minority of species. A novel hypothesis has suggested that egg colour may be significantly influenced by sexual selection. Females may deposit a blue-green pigment biliverdin into eggshells instead of using it for themselves as a powerful antioxidant. By this handicap, females may signal their quality to males, which are then hypothesized to increase their paternal effort. We experimentally tested the hypothesis in the collared flycatcher (Ficedula albicollis), a species laying blue-green eggs. We cross-fostered clutches between nests to disentangle effects of female/territory quality and egg colour on paternal effort and nestling quality. The results supported two assumptions of sexual signalling through egg colour hypothesi Impressive variation in egg colouration among birds has puzzled evolutionary biologists for a long time. The most frequently studied selective forces moulding egg colouration-predation and brood parasitism-have either received little empirical support or may play a role in only a minority of species. A novel hypothesis has suggested that egg colour may be significantly influenced by sexual selection. Females may deposit a blue-green pigment biliverdin into eggshells instead of using it for themselves as a powerful antioxidant. By this handicap, females may signal their quality to males, which are then hypothesized to increase their paternal effort. We experimentally tested the hypothesis in the collared flycatcher (Ficedula albicollis), a species laying blue-green eggs. We cross-fostered clutches between nests to disentangle effects of female/territory quality and egg colour on paternal effort and nestling quality. The results supported two assumptions of sexual signalling through egg colour hypothesi (en)
Title	Are blue eggs a sexually selected signal of female collared flycatchers? A cross-fostering experiment Are blue eggs a sexually selected signal of female collared flycatchers? A cross-fostering experiment (en) Jsou modrá vejce sexuálně selektovaným znakem u samic lejska bělokrkého? Přesazovací experiment. (cs)
skos:prefLabel	Are blue eggs a sexually selected signal of female collared flycatchers? A cross-fostering experiment Are blue eggs a sexually selected signal of female collared flycatchers? A cross-fostering experiment (en) Jsou modrá vejce sexuálně selektovaným znakem u samic lejska bělokrkého? Přesazovací experiment. (cs)
skos:notation	RIV/61989592:15310/07:00004942!RIV08-MSM-15310___
http://linked.open.../vavai/riv/strany	863-876
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6198959212)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Krist, Miloš Grim, Tomáš
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	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	410700
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/07:00004942
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Egg colour; Differential allocation; Female signalling; Immunity; Parental investment (en)
http://linked.open.../riv/klicoveSlovo	Parental investment Immunity Egg colour Differential allocation Female signalling
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[4706A3FF211F]
http://linked.open...i/riv/nazevZdroje	Behavioral Ecology and Sociobiology
http://linked.open...in/vavai/riv/obor	EG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Grim, Tomáš Krist, Miloš
http://linked.open...n/vavai/riv/zamer	Life-history strategies of animals: proximate and ultimate mechanisms
issn	0340-5443
number of pages	14 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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