SEXUAL SELECTION IN THE BARN SWALLOW (HIRUNDO RUSTICA). IV. PATTERNS OF FLUCTUATING ASYMMETRY AND SELECTION AGAINST ASYMMETRY
نویسندگان
چکیده
منابع مشابه
Sexual Dimorphism in Melanin Pigmentation, Feather Coloration and Its Heritability in the Barn Swallow (Hirundo rustica)
Melanin is the main pigment in animal coloration and considerable variation in the concentrations of the two melanin forms (pheo- and eumlanin) in pigmented tissues exists among populations and individuals. Melanin-based coloration is receiving increasing attention particularly in socio-sexual communication contexts because the melanocortin system has been hypothesized to provide a mechanistic ...
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Recent models of parent-offspring communication suggest that nestling begging reliably reflects food requirements, and therefore should increase with nestling need. Need may be affected by short-term variations in hunger, as well as by long-term factors such as relative size, growth rate and body condition. In the present study, the brood sizes of barn swallows were manipulated to create differ...
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A. P. MÖller1*, A. Barbosa1, J. J. Cuervo2, F. de Lope3, S. Merino1 and N. Saino4 1Laboratoire d'Ecologie, CNRSURA 258, Universitë Pierre et Marie Curie, Bat. A, Septie© me ëtage, 7 quai St Bernard, Case 237, F-75252 Paris Cedex 05, France 2Estaciön Biolögica de Do·ana, Pabellön del Perü, Avenida Mar|̈a Luisa s/n, E-41013 Sevilla, Spain 3Departamento de Ciencias Morfologicas y Biologia Celular y...
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I nterest in fluctuating asymmetry, FA (Box l), has recently spread across diverse disciplines in the life sciences, including medicine, genetics, conservation and developmental biology, and behavioral ecologysl. FA allows researchers to evaluate a basic aspect of viability fitness, namely, developmental stability the capacity to develop properly in the face of genetic and environmental stresse...
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Physiological trade-offs mediated by limiting energy, resources or time constrain the simultaneous expression of major functions and can lead to the evolution of temporal separation between demanding activities. In birds, plumage renewal is a demanding activity, which accomplishes fundamental functions, such as allowing thermal insulation, aerodynamics and socio-sexual signaling. Feather renewa...
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ژورنال
عنوان ژورنال: Evolution
سال: 1994
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1994.tb01351.x