AN EXPERIMENTAL STUDY OF PATERNITY AND TAIL ORNAMENTATION IN THE BARN SWALLOW (HIRUNDO RUSTICA )
نویسندگان
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...
متن کاملHaematocrit correlates with tail ornament size in three populations of the Barn Swallow (Hirundo rustica)
Advertisement models of sexual selection propose that exaggerated male secondary sexual characters could reliably signal male health and vigour by having the function of ‘handicaps’, i.e. characters that impose a cost to their bearer (Zahavi 1975, 1977; Heywood 1989; Grafen 1990). A commonly cited example of such characters is the ornamental tails of several bird species (Darwin 1871; Fisher 19...
متن کاملDifferences in begging behaviour between barn swallow, Hirundo rustica, nestlings.
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...
متن کاملClock gene polymorphism and scheduling of migration: a geolocator study of the barn swallow Hirundo rustica
Circannual rhythms often rely on endogenous seasonal photoperiodic timers involving 'clock' genes, and Clock gene polymorphism has been associated to variation in phenology in some bird species. In the long-distance migratory barn swallow Hirundo rustica, individuals bearing the rare Clock allele with the largest number of C-terminal polyglutamine repeats found in this species (Q8) show a delay...
متن کاملExperimental manipulation of tail length in female barn swallows (Hirundo rustica) affects their future reproductive success
José Javier Cuervo, Anders Pape Møller, and Florentino de Lope Estación Experimental de Zonas Áridas, Consejo Superior de Investigaciones Cientı́ficas, Calle General Segura 1, E-04001 Almerı́a, Spain, Laboratoire d’Ecologie Evolutive Parasitaire, CNRS FRE 2365, Université Pierre et Marie Curie, Bât. A, 7ème étage, 7 quai St. Bernard, Case 237, F-75252 Paris Cedex 05, France, and Departamento de B...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Evolution
سال: 1997
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1997.tb02443.x