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Documents disponibles écrits par cet auteur (35)
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Article
Alejandro Onrubia, Auteur ; Carlos Torralvo, Auteur ; Virginia Morandini, Auteur ; Miguel Ferrer, AuteurRecently, (Ramirez and Muñoz, J Ornithol, 2024) rebutte to the study by (Onrubia et al., J Ornithol 165:747–757, 2024), about the presence of Rüppell’s Vulture in Europe, arguing specifically that data related to the autumn migration of vultures[...]
Article
Carlos A. Torralvo, Auteur ; Jorge García-Macía, Auteur ; Miguel Ferrer, Auteur ; Virginia Morandini, AuteurThe Osprey Pandion haliaetus is a large piscivorous raptor with a world-wide distribution. European populations are often long-distance migrators, overwintering in different regions of Africa and the Mediterranean basin. Until now, citizen scien[...]
Article
Jorge García-Macía, Auteur ; Carlos Torralvo, Auteur ; Alejandro Onrubia, Auteur ; Miguel Ferrer, Auteur ; Virginia Morandini, AuteurObservations of African vulture species (Gyps rueppelli and Gyps africanus) in Iberia have increased in recent years, probably anticipating a process of progressive colonization. Thus, it is fundamental to analyze the movement ecology of those s[...]
Article
Alejandro Onrubia, Auteur ; Carlos Torralvo, Auteur ; Virginia Morandini, Auteur ; Miguel Ferrer, AuteurThe Rüppell's Vulture, formerly restricted to a strictly African distribution, has recently been classified as a Critically Endangered species worldwide. However, in recent decades, observations of the species in Europe, particularly in the sout[...]
Article
Miguel Ferrer, Auteur ; Rhian Evans, Auteur ; Joanna Hedley, Auteur ; Simon Hollamby, Auteur ; Anna Meredith, Auteur ; Virginia Morandini, Auteur ; Owen Selly, Auteur ; Claire Smith, Auteur ; D. Philip Whitfield, AuteurStudies on normal concentration of blood constituents of free-living birds are not very common. An adequate knowledge of blood chemistry is greatly recommended for those projects involving research and management of populations as far as they ca[...]
Article
Ryan Baumbusch, Auteur ; Virginia Morandini, Auteur ; Vicente Urios, Auteur ; Miguel Ferrer, AuteurPhysiology can either be a product of or affect the behavior and ecology of individual animals. Blood plasma chemistry contains many components that are indicative of several aspects of a bird’s physiological state at the time of sampling. Plasm[...]
Article
Mahmood Kolnegari ; Greg J. Conway ; Ali Akbar Basiri ; Connor T. Panter ; Mandana Hazrati ; Maryam Shams Rafiee ; Miguel Ferrer ; James F. DwyerAvian electrocutions are a global conservation problem. Power outages associated with electrocutions are problematic for electric utilities focused on delivering reliable electric power. We used contextual data, photographs, line voltage, outage[...]
Article
Virginia Morandini, Auteur ; Enrique González, Auteur ; Keith Bildstein, Auteur ; Miguel Ferrer, AuteurThe Spanish Imperial Eagle (Aquila adalberti) disappeared from Africa as a breeding species in the 1960s coincident with a general decline of their populations in the Iberian Peninsula. Because of a combination of successful conservation actions[...]
Article
Virginia Morandini, Auteur ; Roberto Muriel, Auteur ; Ian Newton, Auteur ; Miguel Ferrer, AuteurWith recent increases in the numbers of reintroduction projects, it has become crucial to know the main factors that allow colonization of new areas and prevent the extinction of small and reintroduced populations. Dispersal is one of the most i[...]
Article
Virginia Morandini, Auteur ; Miguel Ferrer, Auteur ; Lynelle Perry, Auteur ; Marc Bechard, AuteurTo provide an easy and reliable work tool to identify the sex of Rockhopper Penguin (Eudyptes chrysocome) chicks, we weighed and measured
Article
Miguel Ferrer, Auteur ; Virginia Morandini, Auteur
Article
Miguel Ferrer, Auteur ; Virginia Morandini, AuteurWe investigated the distribution of juvenile dispersal distances of a territorial long-lived species with deferred maturity, the Spanish imperial eagle Aquila adalberti. Here we used a reintroduction program as an experimental approach to test p[...]
Article
Miguel Ferrer, Auteur ; Virginia Morandini, Auteur ; Lynelle Perry, Auteur ; Marc Bechard, AuteurCapsule: In Black-browed Albatrosses Thalassarche melanophris nutritional condition is correlated between parents and their offspring.Aims: To test resource allocation hypotheses analysing the relationship between parental and offspring nutritio[...]
Article
Michele Panuccio, Auteur ; Beatriz Martín, Auteur ; Michelangelo Morganti, Auteur ; Alejandro Onrubia, Auteur ; Miguel Ferrer, AuteurA growing body of work shows that climate change is the cause of a number of directional shifts in the spring phenology of migratory birds. However, changes in autumn phenology are well studied and their consistency across species, as well as th[...]
Article
Miguel Ferrer, Auteur ; Virginia Morandini, Auteur ; Ian Newton, AuteurWe report on an 11-year study of floater interference in a population of Spanish Imperial Eagles Aquila adalberti. We analysed changes over the years in the productivity of 15 territories to test predictions of two hypotheses of density-dependen[...]
Article
Miguel Ferrer, Auteur ; Virginia Morandini, Auteur ; Lynelle Perry, Auteur ; Marc Bechard, AuteurTo provide an easy and reliable work tool to identify the sex of individuals, adult Black-browed Albatrosses (Thalassarche melanophrys) (n = 31) were weighed and measured, and the sex determined using DNA analyses. Stepwise discriminant analysis[...]
Article
Micah N. Scholerl, Auteur ; Beatriz Martín, Auteur ; Miguel Ferrer, Auteur ; Alejandro Onrubia, Auteur ; Marc J. Bechard, Auteur ; Greg S. Kaltenecker, Auteur ; Jay D. Carlisle, AuteurWhile alteration of the migratory habits of birds is widely regarded as one of the most evident ecological effects of climate change, studies reporting shifts in migration phenology for long-lived, long-distance migrants have been few. Using tim[...]
Article
Robert A. Miller, Auteur ; Alejandro Onrubia, Auteur ; Beatriz Martín, Auteur ; Gregory S. Kaltenecker, Auteur ; Jay D. Carlisle, Auteur ; Marc J. Bechard, Auteur ; Miguel Ferrer, AuteurMigration is a significant event in the annual cycle of many avian species. During migration birds face many challenges, including unfamiliar foraging and refuge habitats, resulting in a much higher rate of mortality during migration than during[...]
Article
Miguel Ferrer, Auteur ; Virginia Morandini, Auteur ; Ian Newton, AuteurWe report on an 11-year study of floater interference in a population of Spanish Imperial Eagles Aquila adalberti. We analysed changes over the years in the productivity of 15 territories to test predictions of two hypotheses of density-dependen[...]
Article
Ugo Mellone, Auteur ; Beatriz Yanez, Auteur ; Ruben Liminana, Auteur ; A.-Roman Munoz, Auteur ; Diego Pavon, Auteur ; J.-Miguel Gonzalez, Auteur ; Vicente Urios, Auteur ; Miguel Ferrer, AuteurCapsule Immature Short-toed Snake Eagles hatched in Spain leave their Sahelian wintering grounds to spend the summer in northern Africa.
Article
Roberto Muriel, Auteur ; Eva Casado, Auteur ; Daniel Schmidt, Auteur ; Cecilia P. Calabuig, Auteur ; Miguel Ferrer, AuteurCapsule Discriminant functions based on morphometric variables provide a reliable method for sex identification of free-living and hacked young Ospreys. Aims To describe an easy, accurate and low-cost method for sex determination of fully grown [...]
Article
Roberto Muriel, Auteur ; Eva Casado, Auteur ; Daniel Schmidt, Auteur ; Cecilia P. Calabuig, Auteur ; Miguel Ferrer, AuteurCapsule Discriminant functions based on morphometric variables provide a reliable method for sex identification of free-living and hacked young Ospreys. Aims To describe an easy, accurate and low-cost method for sex determination of fully grown [...]
Article
Javier Balbontin, Auteur ; Miguel Ferrer, AuteurDans Bird Study (56 2009)Capsule Juvenile non-breeding males and females explored surrounding areas, returned to breeding areas, and settled in temporary settlement areas. Aims To describe movement patterns of juvenile Bonelli's Eagles during the transient phase of disp[...]
Article
Álvaro Soutullo, Auteur ; Vicente Urios, Auteur ; Miguel Ferrer, Auteur ; Santiago G. Penarrubia, AuteurCapsule The area explored increased throughout the year and tended to be much larger for females than males. Aims To explore how the process of juvenile dispersal unfolds spatially and temporally, and compare the size of the areas explored by th[...]
Article
Vincenzo Penteriani, Auteur ; Carlos Alonso-Alvarez, Auteur ; Maria del Mar Delgado, Auteur ; Fabrizio Sergio, Auteur ; Miguel Ferrer, AuteurThe application of modern spectrometry to the study of avian colour variability has revealed ignored patterns of colour variation such as male-biased sexual dichromatism and seasonal variability in the plumage. However, the variation in the achr[...]
Article
Diego Pavon, Auteur ; Ruben Liminana, Auteur ; Vicente Urios, Auteur ; Alejandro Izquierdo, Auteur ; Beatriz Yanez, Auteur ; Miguel Ferrer, Auteur ; Alejandro de la Vega, AuteurThis study provides the first description of autumn migration routes of juvenile Short-toed Eagles Circaetus gallicus tagged in southeastern Spain. Three nestlings were tagged with Argos/GPS satellite transmitters, of which two reached their win[...]
Article
Jesus Hernandez-Pliego, Auteur ; Manuela de Lucas, Auteur ; Antonio-Roman Munoz, Auteur ; Miguel Ferrer, AuteurTo study the potential impact of wind turbines and associated structures on Montagu's harriers Circus pygargus, we located 111 nests over five years (18-28 nests per year) and compared their distances to several features (natural and anthropogen[...]
Article
Roberto Muriel, Auteur ; Daniel Schmidt, Auteur ; Cecilia P. Calabuig, Auteur ; Juan Patino-Martinez, Auteur ; Miguel Ferrer, AuteurWe assessed the normal values for 15 blood plasma biochemistry parameters and three indices of body condition (IBCs) in free-living Osprey (Pandion haliaetus) nestlings in Brandenburg (Germany). Values were compared with those of other raptors, [...]
Article
Manuela de Lucas, Auteur ; Miguel Ferrer, Auteur ; Marc J. Bechard, Auteur ; Antonio R. Munoz, AuteurWind is increasingly being used as a renewable energy source around the world. Avian mortality is one of the negative impacts of wind energy and a new technique that reduces avian collision rates is necessary. Using the most frequently-killed sp[...]
Article
Roberto Muriel, Auteur ; Virginia Morandini, Auteur ; Miguel Ferrer, Auteur ; Javier Balbontin, AuteurReintroductions have been increasingly used for species restoration and it seems that this conservation tool is going to be more used in the future. Consequently a better knowledge of consequences of this kind of management is needed. Several au[...]
