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Article
Juan J. Soler, Auteur ; Cristina Ruiz‐Castellano, Auteur ; Jordi Figuerola, Auteur ; Josué Martínez-de la Puente, Auteur ; Magdalena Ruiz‐Rodríguez, Auteur ; Gustavo Tomás, AuteurUnderstanding the impressive interspecific variation in avian eggshell colouration has attracted the attention of evolutionary ecologists for more than a century. Several functional explanations predict positive covariation between eggshell pigm[...]
Article
Gustavo Tomás, Auteur ; David Martín-Gálvez, Auteur ; Magdalena Ruiz-Rodríguez, Auteur ; Juan J. Soler, AuteurIntraspecific brood parasitism is widespread among birds and provides clues for elucidating the evolutionary origin of interspecific brood parasitism. Studies suggest that brood parasitism does not occur at random, but that parasitic females sel[...]
Article
Jose J. Cuervo, Auteur ; Juan J. Soler, Auteur ; Jesus M. Aviles, Auteur ; Tomas Perez-Contreras, Auteur ; Carlos Navarro, AuteurHematocrit, the proportion of blood volume occupied by packed red blood cells, is frequently used as an estimate of phenotypic condition. Some studies in birds, however, suggest that hematocrit might not always be a good estimate of condition. W[...]
Article
Liesbeth de Neve, Auteur ; Juan J. Soler, Auteur ; Magdalena Ruiz-Rodríguez, Auteur ; David Martín-Gálvez, Auteur ; Tomas Perez-Contreras, Auteur ; Manuel Soler, AuteurParasite pressure and nutrition are two of the most important factors affecting the trade-off between nestling growth and immune development. During development, energy and nutrients are often limited, and nestlings should only dedicate differen[...]
Article
Magdalena Ruiz-Rodríguez, Auteur ; Juan J. Soler, Auteur ; Francoise S. Lucas, Auteur ; Philipp Heeb, Auteur ; Maria Jose Palacios, Auteur ; David Martín-Gálvez, Auteur ; Liesbeth de Neve, Auteur ; Tomas Perez-Contreras, Auteur ; Juan G. Martinez, Auteur ; Manuel Soler, AuteurDiversity of the gut bacterial community is of prime importance for optimal food digestion and, therefore, for nutritional condition of avian nestlings. Consequently, bacterial community should be considered as a predictor of the future survival[...]
Article
Carlos Navarro, Auteur ; Tomas Perez-Contreras, Auteur ; Jesus M. Aviles, Auteur ; Kevin J. McGraw, Auteur ; Juan J. Soler, AuteurThe hypothesis that eggshell colouration is a sexually selected trait of female birds is based on the fact that biliverdin, the pigment responsible for blue-green colours of the eggshell, is a potent antioxidant and that only females with high a[...]
Article
David Martín-Gálvez, Auteur ; Juan J. Soler, AuteurThe colouration of some traits in nestlings of altricial birds may influence parental food allocation as it may reflect physical condition or hunger. There is increasing evidence of the relationship between colouration of begging traits and nest[...]
Article
Manuel Martin-Vivaldi, Auteur ; Magdalena Ruiz-Rodríguez, Auteur ; María Méndez, Auteur ; Juan J. Soler, AuteurAnimals should invest in the immune system to protect themselves from parasites, but the cost of immune responses may limit investment depending on resource availability. In birds' broods, senior and junior chicks in size hierarchies face differ[...]
Article
María Roldan, Auteur ; Manuel Soler, Auteur ; Rafael Marquez, Auteur ; Juan J. Soler, AuteurThe begging behaviour of nestlings is part of a communication system by which nestlings solicit food from their parents. In the case of brood parasitic species, nestlings in the nests of host species could achieve appropriate begging calls throu[...]
