About: Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health

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About: Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health 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)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Carotenoid-based colouration is common in animal ornamental traits. Although many hypotheses assume health signalisation based on these traits the underlying physiological mechanism remains unresolved. In this article we propose a new hypothesis which assumes that under certain conditions is the maintenance of high levels of carotenoids harmful for the organism. If antioxidant reserves are low carotenoids may be easily attacked by reactive oxygen species resulting in their cleavage into toxic aldehydes. Therefore maintanance of high levels of carotenoids represents a handicap which can be afforded only by high quality individuals. We suggest that the physiological mechanism involves testosterone effect on antioxidant reserves and carotenoid levels. Current evidence supporting this hypothesis is given. Carotenoid-based colouration is common in animal ornamental traits. Although many hypotheses assume health signalisation based on these traits the underlying physiological mechanism remains unresolved. In this article we propose a new hypothesis which assumes that under certain conditions is the maintenance of high levels of carotenoids harmful for the organism. If antioxidant reserves are low carotenoids may be easily attacked by reactive oxygen species resulting in their cleavage into toxic aldehydes. Therefore maintanance of high levels of carotenoids represents a handicap which can be afforded only by high quality individuals. We suggest that the physiological mechanism involves testosterone effect on antioxidant reserves and carotenoid levels. Current evidence supporting this hypothesis is given. (en)
Title	Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health (en)
skos:prefLabel	Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health (en)
skos:notation	RIV/00216208:11310/10:10081493!RIV11-GA0-11310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/06/0851), P(GA206/08/1281), P(LC06073), Z(AV0Z60930519), Z(MSM0021620828)
http://linked.open...iv/cisloPeriodika	97/1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Albrecht, Tomáš Vinkler, Michal
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 Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	249653
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/10:10081493
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Trade-off; Testosterone; Oxidative stress; Ornamentation; Carotenoids (en)
http://linked.open.../riv/klicoveSlovo	Carotenoids Oxidative stress Testosterone Trade-off Ornamentation
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[BD61E660AA0E]
http://linked.open...i/riv/nazevZdroje	Die Naturwissenschaften
http://linked.open...in/vavai/riv/obor	EB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Biodiversity Research Center Components of sexual selection in the monogamous Grey Partridge Extra-pair fertilizations and the strength of sexual selection in socially monogamous passerine
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	97
http://linked.open...iv/tvurceVysledku	Albrecht, Tomáš Vinkler, Michal
http://linked.open...ain/vavai/riv/wos	000272912100002
http://linked.open...n/vavai/riv/zamer	Biodiverzita a ekologie obratlovců: Strategie ochrany a využívání přírodních populací Ekologické procesy v evoluci modelových skupin organismů
issn	0028-1042
number of pages	10 (xsd:int)
http://localhost/t...ganizacniJednotka	11310

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