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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-020-02271-8
|2 doi
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|a pubmed25n1047.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Spickler, Jessica L
|e verfasserin
|4 aut
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|a Sexually selected traits as bioindicators
|b exposure to mercury affects carotenoid-based male bill color in zebra finches
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 14.10.2020
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|a Date Revised 14.10.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a To examine whether sexually selected traits are particularly sensitive bioindicators of environmental toxicants, we assessed the effects of exposure to environmentally relevant dietary concentrations of the pollutant methylmercury on pigment coloration in zebra finches (Taeniopygia guttata). First, we tested whether effects of methylmercury on coloration were influenced by timing of exposure. Birds were either exposed developmentally (up to 114 days after hatching), as adults (after reaching sexual maturity), or for their entire life. Bill coloration, which is a carotenoid-based, sexually selected trait, was less red in males with lifetime exposure to methylmercury, compared to controls. Neither adult, nor developmental exposure influenced bill color in adult males, with the possible exception of early exposure of nestlings. Among females, where bill color is not under strong sexual selection, neither lifetime nor adult exposure to methylmercury affected bill color. For males and females, there was no effect of either lifetime or adult methylmercury exposure on coloration of back feathers, which is a non-sexually-dimorphic, melanin-based trait that is not likely the result of sexual selection. This study is a comprehensive experimental test of the proposal that sexually selected traits may be particularly useful bioindicators of the stress imposed by environmental toxins such as methylmercury
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|a Journal Article
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|a Bioindicator
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|a Carotenoid
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|a Coloration
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|a Methylmercury
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|a Sexual selection
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|a Zebra finch
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|a Environmental Biomarkers
|2 NLM
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|a Environmental Pollutants
|2 NLM
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|a Carotenoids
|2 NLM
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|a 36-88-4
|2 NLM
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1 |
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|a Swaddle, John P
|e verfasserin
|4 aut
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1 |
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|a Gilson, Rebecca L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Varian-Ramos, Claire W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cristol, Daniel A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 29(2020), 8 vom: 29. Okt., Seite 1138-1147
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnas
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| 773 |
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|g volume:29
|g year:2020
|g number:8
|g day:29
|g month:10
|g pages:1138-1147
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|u http://dx.doi.org/10.1007/s10646-020-02271-8
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