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Volumn 286, Issue 5437, 1999, Pages 126-128

Male attractiveness and differential testosterone investment in zebra finch eggs

Author keywords

[No Author keywords available]

Indexed keywords

ANDROSTANOLONE; TESTOSTERONE;

EID: 0033215162     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.286.5437.126     Document Type: Article
Times cited : (444)

References (38)
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    • On the morning that each egg was laid, it was removed and replaced with a dummy egg. Clutches were considered complete once laying had stopped for 3 days or six eggs had been laid (20). Each pair of birds was housed in individual cages, without visual contact with other birds. The room was lit with full-spectrum fluorescent tubes. The failure of some studies to replicate an effect of band color on male attractiveness is most likely due to inadequate housing conditions without ultraviolet (UV) light (21). Our experiment was done under the required conditions of UV light.
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    • We thank S. Buckland, M. Ritchie, and P. Gardner for statistical advice and comments on the manuscript. D.G. was supported by a grant to J.G. from the School of Environmental and Evolutionary Biology, University of St. Andrews, UK.


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