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Connue du milieu érudit des historiens, l’histoire romaine rejoint le grand public au XXe siècle sous diverses formes : cinéma, littérature, éducation et expositions. L’empereur Auguste est important dans cette histoire en transformant le monde romain. Né en 63 avant J.-C. et décédé en 14 après J.-C., Auguste devient le fondateur d’un nouveau régime politique, le Principat, remplaçant la République, et faisant d’Auguste le premier Empereur. Il marque ainsi l’histoire de l’Empire romain jusqu’à sa chute, et influencera encore vingt siècles plus tard tout le monde européen et occidental. En 1937, la Mostra Augustea della Romanità est une exposition italienne organisée sous le régime fasciste célébrant le caractère romain – la Romanità –, et voulant amalgamer Auguste à Mussolini. Cette exposition est analysée en comparaison avec deux autres expositions (Kaiser Augustus und die verlorene Republik, Berlin, 1988; et Augusto/Moi, Auguste, Empereur de Rome, Rome/Paris, 2013/2014). La recherche s’intéresse à la représentation muséale d’Auguste et à l’articulation des expositions relativement à l’historiographie évoluant à chaque exposition. Les catalogues d’exposition constituent la principale source sur les artéfacts exposés, les thèmes, les recherches et la mise en récit. Chaque exposition est remise dans son contexte et comparée à l’historiographie contemporaine, centrée sur des ouvrages marquants de leur époque. Ainsi, ces expositions sont teintées par leur époque, mais influencent à leur tour la culture historique populaire et le milieu académique contemporains et futurs. Le travail muséologique n’est pas seulement une vulgarisation du discours historique pour le grand public, mais aussi un travail participatif à l’historiographie., Known to the scholarly milieu of historians, Roman history reached the general public during the 20th century in various forms: cinema, literature, schools and museum exhibitions. The emperor Augustus is important in Roman history for his transformative role of the Roman world. Born in 63 BC and died in 14 AD, Augustus became the founder of a new political regime, the Principate, replacing the Roman Republic, and making Augustus the first Emperor. He thus marks the history of the Roman Empire until its fall, and will still influence the entire European and Western world twenty centuries later. In 1937, the Mostra Augustea della Romanità is an Italian exhibition organized under the fascist regime celebrating the “idea of Rome” – the Romanità –, and wanting to amalgamate Augustus with Mussolini. This exhibition is analyzed in comparison with two other exhibitions (Kaiser Augustus und die verlorene Republik, Berlin, 1988; and Augusto/Moi, Auguste, Empereur de Rome, Rome/Paris, 2013/2014). The research focuses on the museum representation of Augustus and on the relation of the historiography still evolving with each exhibition. The exhibition catalogs are the main source for exhibited artifacts, themes, research, and storytelling. Each exhibition is put in its context and compared to their contemporary historiography, centered on outstanding works of their time. Thus, these exhibitions are tinted by their time, but in turn influence contemporary and future popular historical culture and as for academia. Museological work is not only popularization of historical discourse for the general public, but also participatory work in historiography.

Coupling isotope values of feathers and satellite tracking of individuals have the potential to reveal multi-season linkages between wintering habitat, diet and carry-over effects on reproductive parameters in migrating birds. Snowy owls Bubo scandiacus have multiple wintering tactics as they can use both terrestrial and marine resources during the non-breeding season, but their nomadic behaviour complicates their study. We assessed if inter-individual variability in the diet inferred by feather isotopes could be explained by habitat use in winter as determined by satellite telemetry and examined possible carry-over effects on reproduction. Seventeen breeding female snowy owls were equipped with satellite transmitters and sampled for stable isotopes (δ13C and δ15N) in feathers. We found a positive relationship between the use of the coastal and marine environments in winter and the contribution of marine resources to the diet of snowy owls in the previous year based on feather analysis. The proportion of marine contribution to the winter diet was variable among individuals and showed a weak negative relationship to summer body mass but not with laying date or clutch size. Our integrated approach shows the usefulness of isotope analyses to infer habitat use and expand the temporal coverage of radio-tracking studies.