Détail de l'auteur
Auteur Auxiliadora Villegas |
Documents disponibles écrits par cet auteur (12)
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Article
Manuel Parejo, Auteur ; Jorge S. Gutiérrez, Auteur ; Auxiliadora Villegas, Auteur ; José M. Abad-Gómez, Auteur ; Erick González-Medina, Auteur ; Juan G. Navedo, Auteur ; Casimiro Corbacho, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; José A. Masero, Auteur![]()
Article
Manuel Parejo, Auteur ; Juan G. Navedo, Auteur ; Jorge S. Gutiérrez, Auteur ; José M. Abad-Gómez, Auteur ; Auxiliadora Villegas, Auteur ; Casimiro Corbacho, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; José A. Masero, AuteurNatural and anthropogenic Iberian wetlands in southern Europe are well known for supporting large numbers of migratory Palaearctic waterbirds each winter. However, information on the geographical origin of dabbling ducks overwintering in these w[...]![]()
Article
Manuel Parejo, Auteur ; Juan G. Navedo, Auteur ; Jorge S. Gutiérrez, Auteur ; José M. Abad-Gómez, Auteur ; Auxiliadora Villegas, Auteur ; Casimiro Corbacho, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; José A. Masero, AuteurNatural and anthropogenic Iberian wetlands in southern Europe are well known for supporting large numbers of migratory Palaearctic waterbirds each winter. However, information on the geographical origin of dabbling ducks overwintering in these w[...]![]()
Article
Juan G. Navedo, Auteur ; Steffen Hahn, Auteur ; Manuel Parejo, Auteur ; José M. Abad-Gómez, Auteur ; Jorge S. Gutiérrez, Auteur ; Auxiliadora Villegas, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; José A. Masero, AuteurWaterbirds can reallocate a considerable amount of nutrients within agricultural fields and between agriculture sites and wetlands. However their effects on biogeochemical cycles have rarely been quantified. We estimated bird numbers, diet (from[...]![]()
Article
Erick González-Medina, Auteur ; José Alfredo Castillo-Guerrero, Auteur ; Francisco Santiago-Quesada, Auteur ; Auxiliadora Villegas, Auteur ; José A. Masero, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; Guillermo Fernández, AuteurParental care in long-lived bird species involves a trade-off between the benefits of increasing the effort expended on current offspring and the costs that this represents for future reproductive output. Under regimes of high environmental vari[...]![]()
Article
Ricardo J. Lopes, Auteur ; José A. Alves, Auteur ; Jennifer A. Gill, Auteur ; Tomas G. Gunnarsson, Auteur ; Jos C. E. W. Hooijmeijer, Auteur ; Pedro M. Lourenço, Auteur ; José A. Masero, Auteur ; Theunis Piersma, Auteur ; Peter M. Potts, Auteur ; Bruno Rabacal, Auteur ; Sandra Reis, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; Francisco Santiago-Quesada, Auteur ; Auxiliadora Villegas, AuteurResolving the migratory connectivity (identifying non-breeding grounds) of migrating bird populations that are morphologically similar is crucial for an understanding of their population dynamics and ultimately their conservation. Such is the ca[...]![]()
Article
Noelia Albano, Auteur ; José A. Masero, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; Auxiliadora Villegas, Auteur ; Francisco Santiago-Quesada, AuteurDespite the extensive literature on energy assimilation efficiency in birds, only a few studies have dealt specifically with offspring, and to our knowledge there is no information on macronutrient assimilation efficiencies during the growth per[...]![]()
Article
Juan G. Navedo, Auteur ; José A. Masero, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; José M. Abad-Gómez, Auteur ; Jorge S. Gutiérrez, Auteur ; Esther G. Sanson, Auteur ; Auxiliadora Villegas, Auteur ; Emilio Costillo, Auteur ; Casimiro Corbacho, Auteur ; Ricardo Moran, AuteurMany migratory waterbird populations are in decline and loss of natural wetlands is one of the main causes. However, some species may respond positively to artificial wetland recreation. In Extremadura (south-west Europe), several large reservoi[...]![]()
Article
José A. Masero, Auteur ; Francisco Santiago-Quesada, Auteur ; Juan M. Sánchez-Guzmán, Auteur ; Auxiliadora Villegas, Auteur ; José M. Abad-Gómez, Auteur ; Ricardo J. Lopes, Auteur ; Vitor Encarnacao, Auteur ; Casimiro Corbacho, Auteur ; Ricardo Moran, AuteurRice fields provide functional wetlands for declining shorebirds and other waterbirds around the world, but fundamental aspects of their stopover ecology in rice fields remain unknown. We estimated the length of stay of Black-tailed Godwits Limo[...]![]()
Article
Jorge S. Gutiérrez, Auteur ; José A. Masero, Auteur ; José M. Abad-Gómez, Auteur ; Auxiliadora Villegas, Auteur ; Juan M. Sánchez-Guzmán, AuteurInvestment in immunity is commonly viewed as an energetically costly activity in birds. Although several studies have focused on the energy cost of mounting an immune response and its concomitant physiological trade-offs, nothing is known about [...]![]()
Article
José M. Abad-Gómez, Auteur ; José A. Masero, Auteur ; Auxiliadora Villegas, Auteur ; Noelia Albano, Auteur ; Jorge S. Gutiérrez, Auteur ; Juan M. Sánchez-Guzmán, AuteurThere is a growing body of evidence that maternal antibodies transferred to offspring have potential implications in the evolutionary ecology of birds. This transfer of maternal antibodies is a potentially flexible mechanism of non-genetic inher[...]![]()
Article
Auxiliadora Villegas, Auteur ; José A. Masero, Auteur ; Casimiro Corbacho, Auteur ; Jorge S. Gutiérrez, Auteur ; Noelia Albano, Auteur ; Juan M. Sánchez-Guzmán, AuteurEnvironmental conditions during early development may differentially affect male and female offspring, and the effects of this sex-environment interaction in chick performance may be exaggerated under harsh conditions. In birds, most of the curr[...]



