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Auteur Jean-Louis Berthoud |
Documents disponibles écrits par cet auteur (3)
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Article
Regina Magaña Vázquez, Auteur ; Jean-Louis Berthoud, Auteur ; Anke Dinkel, Auteur ; Ute Mackenstedt, Auteur ; Friederike Woog, AuteurIsland ecosystems such as those in Madagascar host a highly endemic biodiversity which is strongly shaped by geology, habitat structure, altitude, and anthropogenic impact. These factors could further shape the prevalence and diversity of avian [...]Nouveauté
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Article
Simon Hinrichs, Auteur ; Jean-Louis Berthoud, Auteur ; Friederike Woog, AuteurGreylag Geese Anser anser usually nest on the ground, close to water. In Hamburg, northern Germany, a pair of urban Greylag Geese was first seen nesting on a roof terrace of a building, 25 m above ground level, in 2013. Since then, the number of[...]![]()
Article
Simone A. Ehret, Auteur ; Jean-Louis Berthoud, Auteur ; Friederike Woog, AuteurDans Wildfowl (70 2020)Geese vary their body mass throughout the annual cycle. Before energy-demanding processes such as migration, breeding and moult, they accumulate fat reserves, mainly in their abdomen. Females in particular may face a nutritional bottleneck durin[...]




