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Article
Juan Moreno, Auteur ; Jimena Lopez-Arrabe, AuteurMale signals may express the capacity to sustain environmental challenges. In some migratory birds like the Pied Flycatcher Ficedula hypoleuca, plumage ornaments are molted in the winter quarters shortly before spring migration while most feathe[...]
Article
Juan Moreno, Auteur ; Jimena Lopez-Arrabe, AuteurSexually and socially selected signals are predicated to express the present and past condition of individuals and thereby their capacity to cope with environmental challenges. The concentration of corticosterone in feathers (CORTf) has been val[...]
Article
Alejandro Cantarero, Auteur ; Jimena Lopez-Arrabe, Auteur ; Juan Moreno, AuteurThe selection of nest sites and nesting material may have important implications for avian reproductive behaviour and performance. Nest construction may involve costs arising from transporting material that may be reduced considerably if nest ma[...]
Article
Behavioural responses to ectoparasites in pied flycatchers Ficedula hypoleuca: an experimental study
Alejandro Cantarero, Auteur ; Jimena Lopez-Arrabe, Auteur ; Alberto J. Redondo, Auteur ; Juan Moreno, AuteurNests of cavity-nesting birds usually harbor some species of haematophagous ectoparasites that feed on the incubating adults and nestlings. Given the negative impact of ectoparasites on nestlings there will be selection on hosts to reduce parasi[...]
Article
Jimena Lopez-Arrabe, Auteur ; Alejandro Cantarero, Auteur ; Lorenzo Perez-Rodriguez, Auteur ; Antonio Palma, Auteur ; Juan Moreno, AuteurNest-dwelling ectoparasites may result in costs for nestlings of cavity nesters in terms of compromised growth and condition before fledging. The reduction or elimination of nest ectoparasites to study their effects on avian hosts can be conduct[...]
Article
Juan Moreno, Auteur ; Diego Gil, Auteur ; Alejandro Cantarero, Auteur ; Jimena Lopez-Arrabe, AuteurIt is not clear at present if variation in testosterone (T) levels is associated with variation in plumage signal expression in female birds. In Iberian populations of Pied Flycatchers Ficedula hypoleuca, some females exhibit a distinctive white[...]
Article
Alejandro Cantarero, Auteur ; Toni Laaksonen, Auteur ; Pauliina E. Jaervistoe, Auteur ; Jimena Lopez-Arrabe, Auteur ; Diego Gil, Auteur ; Juan Moreno, AuteurIn a substantial number of species, females show some development of secondary sexual characters. These traits can function as signals of individual phenotypic or genetic qualities and status to conspecifics. Individuals may benefit potentially [...]
