The maintenance of phenotypic divergence through sexual selection: An experimental study in barn swallows Hirundo rustica
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چکیده
منابع مشابه
Experimental tail shortening in Barn Swallows ( Hirundo rustica ) affects haematocrit
1. Recent studies in Scotland suggest that the outermost tail feathers of Barn Swallows ( Hirundo rustica Linnaeus) may be around 10–12 mm longer than the aerodynamic optimum, with sexual selection for long tails accounting for this extra length. 2. To test this hypothesis, we shortened the outermost tail feathers in male and female Barn Swallows in southern Spain by cutting 1, 11 or 21 mm from...
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The outermost tail feathers in male barn swallows {Hirundo rustica) are the target of a strong directional female mate preference. The" tait ornament is also expressed in females, since females have considerably longer tails than juveniles, either due to (1) a strong genetic correlation between the characters in the two sexes, or (2) direct sexual selection on females. To discriminate between t...
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The effects of mutation on phenotypic expression are supposed to be mainly deleterious because mutations disrupt the expression of genes that function relatively well under current environmental conditions. Thus, mutations are assumed to give rise to deviant phenotypes that are generally selected against. Radioactive contamination in the Chernobyl region of Ukraine is associated with a signific...
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Amélie N. Dreiss, Carlos Navarro, Florentino de Lope, and Anders P. Møller Laboratoire Fonctionnement et Evolution des Systèmes Ecologiques, Université Pierre et Marie Curie-Paris 6, Paris, France, Departamento Ecologı́a Funcional y Evolutiva, Consejo Superior de Investigaciones Cientı́ficas, Almerı́a, Spain, Departamento de Biologı́a Animal, Universidad de Extremadura, Badajoz, Spain, and Laborato...
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ژورنال
عنوان ژورنال: Evolution
سال: 2016
ISSN: 0014-3820,1558-5646
DOI: 10.1111/evo.13014