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Documents disponibles écrits par cet auteur (35)
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Article
Matteo Beccardi, Auteur ; Mireia Plaza, Auteur ; Juan Moreno, Auteur ; Alejandro Cantarero, AuteurIn many bird species, physical aggression between males become more frequent during the female’s fertile period, as female encounters with extra-pair males are more frequent and can entail paternity losses. Male aggressiveness during this stage [...]
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, AuteurFledging at older ages has been posited as benefiting offspring survival, whereas shortening the duration of the nestling period may reduce parental costs. Improving parental condition through food supplementation before hatching of the young ma[...]
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
Sonia González-Braojos, Auteur ; Juan José Sanz, Auteur ; Juan Moreno, AuteurCertain populations of long-distance migratory birds are suffering declines, which may be attributed to effects of climate change. In this article, we have analysed a long-term (1991–2015) data set on a pied flycatcher Ficedula hypoleuca populat[...]
Article
Rafael Ruiz-De-Castañeda, Auteur ; Edward H. Burtt, Auteur ; Sonia González-Braojos, Auteur ; Juan Moreno, AuteurWe compared the in vitro bacterial degradability of the white patch and melanized area of primary feathers of breeding male and female Pied Flycatchers Ficedula hypo-leuca and related this variation to laying date, brood size and brood mass. Bac[...]
Article
Rafael Ruiz-De-Castañeda, Auteur ; Edward H. Burtt, Auteur ; Sonia González-Braojos, Auteur ; Juan Moreno, AuteurWe compared the invitro bacterial degradability of the white patch and melanized area of primary feathers of breeding male and female Pied Flycatchers Ficedula hypo-leuca and related this variation to laying date, brood size and brood mass. Bact[...]
Article
Juan Moreno, Auteur ; Sonia González-Braojos, Auteur ; Rafael Ruiz-De-Castañeda, AuteurCapsule Very low and anomalous temperatures in early spring of 2010 were followed by the only massive reproductive failure event recorded in 24 years in a population of Pied Flycatchers Ficedula hypoleuca breeding at 1200 m altitude in central S[...]
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
Sonia González-Braojos, Auteur ; Ana I. Vela, Auteur ; Rafael Ruiz-De-Castañeda, Auteur ; Víctor Briones, Auteur ; Alejandro Cantarero, Auteur ; Juan Moreno, AuteurThe association between skin bacterial communities and nestling growth is poorly understood. We estimated the abundance of heterotrophic bacteria on skin of nestlings and their association with growth in the pied flycatcher Ficedula hypoleuca. A[...]
Article
Vicente Garcia-Navas, Auteur ; Juan Jose Sanz, Auteur ; Santiago Merino, Auteur ; Josue Martinez-De La Puente, Auteur ; Elisa Lobato, Auteur ; Sara del Cerro, Auteur ; Juan Rivero, Auteur ; Rafael Ruiz de Castaneda, Auteur ; Juan Moreno, AuteurPrevious studies have found strong relationships between calcium availability and eggshell pigmentation in the Great Tit (Parus major). According to the "structural function hypothesis", protoporphyrins, the pigments responsible for reddish spot[...]
Article
Josue Martinez-De La Puente, Auteur ; Santiago Merino, Auteur ; Elisa Lobato, Auteur ; Juan Moreno, Auteur ; Gustavo Tomás, Auteur ; Judith Morales, AuteurDans Bird Study (56 2009)Capsule Some males brought building materials to nests and females who were paired with such males laid heavier clutches.
Article
Judith Morales, Auteur ; Juan Moreno, Auteur ; Santiago Merino, Auteur ; Juan J. Sanz, Auteur ; Gustavo Tomás, Auteur ; Elena Arriero, Auteur ; Elisa Lobato, Auteur ; Josue Martonez-De La Puente, AuteurFemale ornamentation has received little attention in studies of sexual selection. Traditionally, female ornaments have been explained as a genetically correlated response to selection in males. However, recent findings suggest that female ornam[...]
Article
Sonia González-Braojos, Auteur ; Ana I. Vela, Auteur ; Rafael Ruiz-De-Castañeda, Auteur ; Víctor Briones, Auteur ; Juan Moreno, AuteurBacteria have the potential to be important selective forces in the evolution of many aspects of avian biology, including nestling growth. We estimated abundances of two common gut bacterial types in birds (enterococci and Enterobacteriaceae) an[...]
Article
Elisa Lobato, Auteur ; Juan Moreno, Auteur ; Santiago Merino, Auteur ; Judith Morales, Auteur ; Gustavo Tomás, Auteur ; Javier Martínez, Auteur ; Rodrigo A. Vásquez, Auteur ; Alexandra Kuchar, Auteur ; Erich Moestl, Auteur ; Jose Luis Osorno, AuteurGlucocorticoids promote the mobilization of energy stores and they may facilitate the expression of energetically expensive functions. Early arrival on the breeding grounds in migratory species and territorial competition are energetically deman[...]
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
Juan José Sanz, Auteur ; Jaime Potti, Auteur ; Juan Moreno, Auteur ; Santiago Merino, Auteur ; Oscar Frias, Auteur
Article
Josue Martinez-De La Puente, Auteur ; Santiago Merino, Auteur ; Elisa Lobato, Auteur ; Juan Rivero-de Aguilar, Auteur ; Sara del Cerro, Auteur ; Rafael Ruiz-De-Castañeda, Auteur ; Juan Moreno, AuteurEnvironmental factors may strongly affect avian-biting fly interactions in different ways because insects are heterothermic organisms that depend greatly on environmental variables to activate their metabolism and behaviour. We studied the effec[...]
Article
Juan Moreno, Auteur ; Elisa Lobato, Auteur ; Judith Morales, AuteurThe colour fading in eggs of the Pied Flycatcher was studied in Spain. Egg colour for >400 eggs was estimated at the moment of oviposition, at the onset of incubation, and at the end of incubation. Results, obtained using a spectrophotometer, sh[...]
Article
Josue Martinez-De La Puente, Auteur ; Santiago Merino, Auteur ; Juan Moreno, Auteur ; Gustavo Tomás, Auteur ; Judith Morales, Auteur ; Elisa Lobato, Auteur ; Sonia Garcia-Fraile, Auteur ; Javier Martínez, AuteurWe explore the relationship between general eggshell colour (background and spots) and proportion Of Surface covered by spots on the eggs of blue tits Cyanistes caeruleus and several variables reflecting female health and condition. Females layi[...]
Article
Jose L. Osorno, Auteur ; Judith Morales, Auteur ; Juan Moreno, Auteur ; Santiago Merino, Auteur ; Gustavo Tomás, Auteur ; Rodrigo A. Vásquez, AuteurWe present evidence of differential maternal allocation to eggs in response to manipulated male attractiveness in the migratory pied flycatcher (Ficedula hypoleuca). We manipulated the size of a male secondary sexual trait, the white forehead pa[...]
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
Juan Moreno, AuteurClutch destruction and replacement are sometimes observed during studies of cavity-nesting birds. This could be due to abandonment by the first female to lay, with subsequent replacement by another female, or to male infanticide. Clutch replacem[...]
Article
Elisa Lobato, Auteur ; Juan Moreno, Auteur ; Santiago Merino, Auteur ; Juan J. Sanz, Auteur ; Elena Arriero, Auteur ; Judith Morales, Auteur ; Gustavo Tomás, Auteur ; Josue Martinez-de la Puente, AuteurDuring eight years of study of a population of pied flycatchers Ficedula hypoleuca breeding in central Spain, we observed throughout incubation
Article
Juan Moreno, Auteur ; Judith Morales, Auteur ; Elisa Lobato, Auteur ; Santiago Merino, Auteur ; Gustavo Tomás, Auteur ; Josue Martinez-de la Puente, AuteurThe signalling hypothesis of eggshell colouration in birds posits that females of species with blue-green eggs signal their phenotypic quality or the quality of their eggs to their mates through deposition of the antioxidant biliverdin as pigmen[...]
Article
Juan Moreno, AuteurAvian parental infanticide is apparently a rare phenomenon judging from the scant reports in the literature. However, unexplained cases of single nestling disappearance or of apparent fall from the nest are rather common and are routinely attrib[...]
Article
Rafael Ruiz-De-Castañeda, Auteur ; Ana Isabel Vela, Auteur ; Elisa Lobato, Auteur ; Víctor Briones, Auteur ; Juan Moreno, AuteurBacteria grow on avian eggshells and thus can potentially cause diseases in developing embryos. Little is known about culturable bacteria colonizing avian eggshells in free-living birds, with most studies restricted to poultry. Our objective was[...]
Article
Elisa Lobato, Auteur ; Santiago Merino, Auteur ; Judith Morales, Auteur ; Gustavo Tomás, Auteur ; Josue Martinez-De La Puente, Auteur ; Estrella Sanchez, Auteur ; Sonia Garcia-Fraile, Auteur ; Juan Moreno, AuteurSex differences in immune function are relatively well studied in vertebrate animals, although the patterns are not always clear in birds. The study of immune responses in nestlings of wild bird populations may constitute an appropriate way to i[...]
Article
Sonia González-Braojos, Auteur ; Ana I. Vela, Auteur ; Rafael Ruiz-De-Castañeda, Auteur ; Víctor Briones, Auteur ; Juan Moreno, AuteurGut bacterial loads in avian nestlings may be affected by factors such as climate, seasonality and brood size. There is no published information on this subject for wild birds, despite its potential importance for nestling welfare and growth. We[...]
