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Article
Miguel A. Rendon, Auteur ; Adelheid Studer-Thiersch, Auteur ; Christian Wenker, Auteur ; Juan A. Amat, AuteurWe used measurements of tarsus length during the development of captive Greater Flamingo chicks (Phoenicopterus roseus) of known age to determine growth curves and derive functions to predict age. We analysed data from 40- to 196-day-old males a[...]
Article
Abdennour Boucheker, Auteur ; Riad Nedjah, Auteur ; Mouloud Boulkhssaim, Auteur ; Christophe Germain, Auteur ; Araceli Garrido, Auteur ; Miguel Angel Rendón, Auteur ; Juan A. Amat, Auteur ; Manuel Rendón-Martos, Auteur ; Roger Prodon, Auteur ; Arnaud Béchet, Auteur ; Boudjema Samraoui, AuteurLas variaciones en la calidad del hábitat en el espacio y el tiempo llevan a las aves a rastrear estos cambios para optimizar su estado físico. Investigamos los movimientos entre colonias de los flamencos comunes Phoenicopterus roseus entre colo[...]
Article
Breeding biology of the Northern Pintail Anas acuta at the edge of its southwestern Palearctic range
Fernando Ibañez, Auteur ; Juan Calderón, Auteur ; Juan A. Amat, AuteurDans Wildfowl (73 2023)One of the most southern breeding sites of the Northern Pintail Anas acuta in the SW Palearctic is in the Guadalquivir marshes (southwest Spain), part of which includes Doñana National Park. Breeding was recorded in 45.7% out of 46 years and was[...]
Article
Gema L. Batanero, Auteur ; Andy J. Green, Auteur ; Juan A. Amat, Auteur ; Marion Vittecoq, Auteur ; Curtis A. Suttle, Auteur ; Isabel Reche, AuteurCoastal wetlands are valuable aquatic ecosystems with high biological productivity, which provide services such as a reduction in nitrogen loading into coastal waters and storage of organic carbon acting as carbon dioxide sinks. The predicted ri[...]
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Maria Cecilia Chiale, Auteur ; Miguel A. Rendon, Auteur ; Sophie Labaude, Auteur ; Anne-Sophie Deville, Auteur ; Juan Garrido-Fernandez, Auteur ; Antonio Pérez-Gálvez, Auteur ; Araceli Garrido, Auteur ; Manuel Rendón-Martos, Auteur ; Arnaud Béchet, Auteur ; Juan A. Amat, AuteurGreater flamingos use cosmetic coloration by spreading uropygial secretions pigmented with carotenoids over their feathers, which makes the plumage redder. Because flamingos inhabit open environments that receive direct solar radiation during da[...]
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Mark A.F. Gillingham, Auteur ; Fabrizio Borghesi, Auteur ; B. Karina Montero, Auteur ; Francesca Migani, Auteur ; Arnaud Béchet, Auteur ; Manuel Rendón-Martos, Auteur ; Juan A. Amat, Auteur ; Enrico Dinelli, Auteur ; Simone Sommer, AuteurElevated concentrations of trace elements represent a major concern to wetland ecosystems, since river estuaries are geochemical endpoints that accumulate pollution. Although the negative impact of environmental exposure of highly toxic elements[...]
Article
Jesus Gomez, Auteur ; Gustavo Linan-Cembrano, Auteur ; Macarena Castro, Auteur ; Alejandro Perez-Hurtado, Auteur ; Cristina Ramo, Auteur ; Juan A. Amat, AuteurQuantifying the pigment content in avian eggshells is important for the validation of hypotheses on the functionality of eggshell coloration. The few studies that have analysed whether eggshell coloration and spottiness are related to pigment co[...]
Article
Juan A. Amat, Auteur ; Araceli Garrido, Auteur ; Francesca Portavia, Auteur ; Manuel Rendón-Martos, Auteur ; Antonio Pérez-Gálvez, Auteur ; Juan Garrido-Fernandez, Auteur ; Jesus Gomez, Auteur ; Arnaud Béchet, Auteur ; Miguel A. Rendon, AuteurColourful plumage is typical of males in species with conventional sex roles, in which females care for offspring and males compete for females, as well as in many monogamous species in which both sexes care for offspring. Reversed sexual dichro[...]
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Mark A. F. Gillingham, Auteur ; Arnaud Béchet, Auteur ; Alexandre Courtiol, Auteur ; Manuel Rendón-Martos, Auteur ; Juan A. Amat, Auteur ; Boudjema Samraoui, Auteur ; Ortaç Onmuş, Auteur ; Simone Sommer, Auteur ; Frank Cézilly, AuteurSelective pressure from pathogens is thought to shape the allelic diversity of major histocompatibility complex (MHC) genes in vertebrates. In particular, both local adaptation to pathogens and gene flow are thought to explain a large part of th[...]
Article
Fabrizio Borghesi, Auteur ; Enrico Dinelli, Auteur ; Francesca Migani, Auteur ; Arnaud Béchet, Auteur ; Manuel Rendón-Martos, Auteur ; Juan A. Amat, Auteur ; Simone Sommer, Auteur ; Mark A. F. Gillingham, Auteur ; Matthew Davey, AuteurCet article traite de la façon d'analyser la bioaccumulation d'éléments trace dans les plumes d'oiseaux en tenant compte de la contamination par la pollution externe à partir d'échantillons de sédiments. La méthode a été utilisée pour estimer la[...]
Article
Juan A. Amat, Auteur ; Nico Varo, Auteur ; Marta I. Sanchez, Auteur ; Andy J. Green, Auteur ; Cristina Ramo, AuteurWe tested if Black-necked Grebe, a species in which both sexes undertake moult-migration, have an unbiased sex ratio at a moulting site in Europe, as previously found in North America and as was expected for a species with biparental care. For t[...]
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Nico Varo, Auteur ; Juan A. Amat, Auteur
Article
Miguel A. Rendon, Auteur ; Araceli Garrido, Auteur ; Manuel Rendón-Martos, Auteur ; Juan A. Amat, Auteur
Article
Juan A. Amat, Auteur ; Andy J. Green, Auteur ; Nico Varo, Auteur
Article
Juan A. Amat, Auteur ; Miguel A. Rendon, Auteur ; Manuel Rendón-Martos, Auteur ; Araceli Garrido, Auteur ; Jose M. Ramirez, AuteurConnectivity among habitat patches has mainly been studied in relation to species-specific behaviours. However, the movements of animals among patches may have different functions, and tolerance to gaps between habitat patches may vary between t[...]
Article
Miguel A. Rendon, Auteur ; Araceli Garrido, Auteur ; Manuel Rendón-Martos, Auteur ; Jose M. Ramirez, Auteur ; Juan A. Amat, AuteurIn sexually dimorphic species, the parental effort of the smaller sex may be reduced due to competitive exclusion in the feeding areas by the larger sex or physiological constraints. However, to determine gender effects on provisioning patterns,[...]
Article
Nico Varo, Auteur ; Andy J. Green, Auteur ; Marta I. Sanchez, Auteur ; Cristina Ramo, Auteur ; Jesus Gomez, Auteur ; Juan A. Amat, AuteurWe examined how availability of brine shrimps, Artemia parthenogenetica, influenced temporal aspects of foraging behaviour and population dynamics of moulting black-necked grebes, Podiceps nigricollis, from late August to early December in four [...]
Article
Abdennour Boucheker, Auteur ; Boudjema Samraoui, Auteur ; Roger Prodon, Auteur ; Juan A. Amat, Auteur ; Manuel Rendón-Martos, Auteur ; Nicola Baccetti, Auteur ; Francesc Vidal i Esquerre, Auteur ; Sergio Nissardi, Auteur ; Ozge Balkiz, Auteur ; Christophe Germain, Auteur ; Mouloud Boulkhssaim, Auteur ; Arnaud Béchet, AuteurIn the Mediterranean basin, Greater Flamingos Phoenicopterus roseus constitute a metapopulation with natal and breeding dispersal among colonies. However, the rate of exchange between European and North African colonies remains poorly known. In [...]
Article
Miguel A. Rendon, Auteur ; Araceli Garrido, Auteur ; Jose C. Guerrero, Auteur ; Manuel Rendón-Martos, Auteur ; Juan A. Amat, AuteurAfter being fed by their parents, Greater Flamingo chicks store food in their crops, which protrude outwards. We allocated the crop profiles of chicks to four categories to assess the relationship between body mass and crop profile variation, an[...]
Article
Nico Varo, Auteur ; Juan A. Amat, AuteurRed-knobbed coot, Fulica cristata, was formerly distributed across several countries in the south-west Palaearctic. Remnant populations are now located in Morocco and Spain. In the latter, the red-knobbed coot is considered critically endangered[...]
Article
Juan A. Amat, Auteur ; José A. Masero, AuteurWe tested whether belly-soaking (i.e. wetting of ventral plumage) in incubating Kentish Plovers Charadrius alexandrinus in a hot environment serves to cool overheated eggs, or whether belly-soaking would mainly serve for adult thermoregulation, [...]
Article
Miguel A. Rendon, Auteur ; Manuel Rendón-Martos, Auteur ; Araceli Garrido, Auteur ; Juan A. Amat, AuteurCapital breeding refers to a strategy in which birds use body stores for egg formation, whereas income breeders obtain all resources for egg formation at breeding sites. Capital breeding should occur more in large-bodied species because the rela[...]
Article
Anthony D. Fox, Auteur ; Cristina Ramo, Auteur ; Nico Varo, Auteur ; Marta I. Sanchez, Auteur ; Juan A. Amat, Auteur ; Andy J. Green, AuteurFrom August to December, thousands of Black-necked Grebes Podiceps nigricollis concentrate during the flightless moult period in salt ponds in the Odiel Marshes, southern Spain, where they feed on the brine shrimp Artemia parthenogenetica. We pr[...]
Article
Juan A. Amat, Auteur
Article
Oezge Balkiz, Auteur ; Uygar Ozesmi, Auteur ; Roger Pradel, Auteur ; Christophe Germain, Auteur ; Mehmet Siki, Auteur ; Juan A. Amat, Auteur ; Manuel Rendón-Martos, Auteur ; Nicola Baccetti, Auteur ; Arnaud Béchet, AuteurMetapopulation conservation should rely on a flyway approach aiming at assessing the spatial range of metapopulations by estimating the level of exchanges among local populations. In the western Mediterranean, Greater Flamingos have been shown t[...]
Article
Jesus Gomez, Auteur ; Ana I. Pereira, Auteur ; Alejandro Perez-Hurtado, Auteur ; Macarena Castro, Auteur ; Cristina Ramo, Auteur ; Juan A. Amat, AuteurIn ground-nesting birds egg colour and appearance may have evolved due to opposite selection pressures. Pigmentation and spottiness make the eggs darker and have been suggested to improve camouflage. However darker and more spotted eggs may reac[...]
