Ornamental plumage does not signal male quality in red-billed queleas
نویسندگان
چکیده
منابع مشابه
Ornamental plumage does not signal male quality in red-billed queleas.
Sexually selected ornaments often function as condition-dependent signals of quality (or 'indicators'). When ornamentation is costly, only high-quality individuals can afford to produce the most elaborate signals. The plumage ornamentation of male red-billed queleas, Quelea quelea, is an ideal candidate for an indicator because it is continuously variable, conspicuous, sexually dimorphic, is di...
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Males in many bird species develop elaborate carotenoid-based plumage ornaments that play an important role as signals of individual quality in intraor intersexual selection. In the present study, we investigated which of several factors related to male condition and health affect the brightness and coloration of the carotenoid-based orange–red breeding plumage in males of the red bishop (Euple...
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A migratory divide usually signals the presence of a geographical region over which other traits, such as morphology and genotypes, also undergo rapid change. A migratory divide has been hypothesized in central southern Africa for the abundant migratory weaver, the red-billed quelea Quelea quelea. The positioning of the divide in the region is based on the patterns of rainfall in the region tha...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 2000
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2000.1261