Digit ratios, secondary sexual characters and condition in barn swallows Hirundo rustica
نویسندگان
چکیده
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 Laboratoire de Parasitologie Evolutive, Université Pierre et Marie Curie-Paris 6, Paris, France
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The function of long tails in female barn swallows {Hirundo rustica): an experimental study
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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