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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
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
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
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
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[...]
