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Documents disponibles écrits par cet auteur (9)
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Article
Fernando Ballejo, Auteur ; Sergio A. Lambertucci, Auteur ; Ana Trejo, Auteur ; Luciano J. M. De Santis, AuteurAnimals that share resources tend to use different foraging strategies in order to decrease potential competition. Scavenging birds using the same nutritional resources can segregate into different space and time scales. However, it has been sug[...]
Article
Sergio A. Lambertucci, Auteur ; Jose Antonio Donazar, Auteur ; Antonio Delgado Huertas, Auteur ; Begona Jimenez, Auteur ; Monica Saez, Auteur ; Jose Antonio Sanchez-Zapata, Auteur ; Fernando Hiraldo, AuteurLead poisoning is not a new threat for wild birds, but it is now playing an important role in shaping raptor populations. Studies have been focused mainly on Europe. North-America, and Japan, but little is known about the situation in South-Amer[...]
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Guillermo Blanco, Auteur ; Luis M. Bautista, Auteur ; Damaso Hornero-Mendez, Auteur ; Sergio A. Lambertucci, Auteur ; Guillermo Wiemeyer, Auteur ; Jose A. Sanchez-Zapata, Auteur ; Fernando Hiraldo, Auteur ; Jose A. Donazar, AuteurBecause large species ingest proportionally less food than small ones, it may be predicted that they should incorporate relatively fewer carotenoids to a proportionally equal volume of blood. However, some species may increase their levels of ci[...]
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Sergio A. Lambertucci, Auteur ; Pablo A. E. Alarcon, Auteur ; Fernando Hiraldo, Auteur ; Jose A. Sanchez-Zapata, Auteur ; Guillermo Blanco, Auteur ; Jose A. Donazar, AuteurCurrent changes in the environment and increases in threats to wildlife have prompted the need for a better understanding of species' conservation requirements. Strategies for the conservation of large-sized animal species with large home ranges[...]
Article
Sergio A. Lambertucci, Auteur ; Orlando A. Mastrantuoni, AuteurThe breeding behavior of Andean Condors (Vultur gryphus) is known primarily from observations of captive pairs. This species is the only sexually dimorphic one in its family (Cathartidae), permitting comparison of the parental care provided by e[...]
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Sergio A. Lambertucci, Auteur ; Adriana Ruggiero, AuteurCliff outcrops are structural components of the environment that can maintain a large variety of wildlife; however, they are still rather overlooked in conservation planning. We evaluate whether cliffs used by the Andean condor (Vultur gryphus) [...]
Article
Karina L. Speziale, Auteur ; Sergio A. Lambertucci, Auteur ; Ola Olsson, AuteurHuman disturbance can be a severe problem for some animal species. Behavioural ecology theory predicts that sensitivity to mortality risks, and thereby to disturbance, will be related to life-history characteristics. Long-lived species with low [...]
Article
Sergio A. Lambertucci, Auteur ; N. Luis Jacome, Auteur ; Ana Trejo, AuteurAndean Condors (Vultur gryphus) are endangered in the northern portion of their South American range, but populations are larger further south. However, throughout their range, little is known about current population sizes and dynamics. Andean [...]
Article
Maricel Graña Grilli, Auteur ; Sergio A. Lambertucci, Auteur ; Jean-François Therrien, Auteur ; Keith L. Bildstein, AuteurBoth wing size and wing shape affect the flight abilities of birds. Intra and inter-specific studies have revealed a pattern where high aspect ratio and low wing loading favour migratory behaviour. This, however, have not been studied in soaring[...]
