Do male ornaments signal immunity in the common yellowthroat?
نویسندگان
چکیده
منابع مشابه
Sexual selection, multiple male ornaments, and age- and condition-dependent signaling in the common yellowthroat.
In many animals, sexual selection has resulted in complex signaling systems in which males advertise aspects of their phenotypic or genetic quality through elaborate ornamentation and display behaviors. Different ornaments might convey different information or be directed at different receivers, but they might also be redundant signals of quality that function reliably at different times (ages)...
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aspects of male quality in two populations of the common yellowthroat Peter O. Dunn*, Julia C. Garvin, Linda A. Whittingham, Corey R. Freeman-Gallant and Dennis Hasselquist Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, 53201, USA; Department of Biology, Skidmore College, Saratoga Springs, New York 12866, USA; and Department of Animal Ecology, Ecolog...
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We used controlled aviary experiments to study the role of male ornaments in male-male competition and female choice in the common yellowthroat Geothlypis trichas, a sexually dichromatic warbler. Previous aviary studies in Wisconsin, USA, indicated that males with larger black facial masks were dominant over males with smaller masks and preferred by females in mate choice experiments. In this s...
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Vertebrates show two major classes of sexually dimorphic traits: weaponry and ornaments. However, Darwin could not explain why their expression varies so much across lineages. We argue that coercion-avoidance can explain both the existence and taxonomic distribution of ornaments. Females maximize their fitness when they can freely choose their mates, but males are expected to use sexually dimor...
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The major histocompatibility complex (MHC) is characterized by a birth and death model of evolution involving gene duplication, diversification, loss of function, and deletion. As a result, gene number varies across taxa. Birds have between one and 7 confirmed MHC class II B genes, and the greatest diversity appears to occur in passerines. We used multiple primer sets on both genomic DNA (gDNA)...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 2007
ISSN: 1465-7279,1045-2249
DOI: 10.1093/beheco/arm099