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Article
Maud Poisbleau, Auteur ; Laurent Demongin, Auteur ; Loic A. Hardouin, Auteur ; David Carslake, Auteur ; Marcel Eens, Auteur ; Petra Quillfeldt, AuteurWe analysed the vocalisation behaviour of Rockhopper Penguin chicks Eudyptes chrysocome during hatching. Hatching vocalisation rates (in number per minute) were not consistently influenced by ambient air temperature. They did not differ between [...]
Article
Maud Poisbleau, Auteur ; Laurent Demongin, Auteur ; Ian J. Strange, Auteur ; Marcel Eens, Auteur ; Petra Quillfeldt, AuteurCrested penguins (genus Eudyptes) present a unique reversed egg-size dimorphism and hatching asynchrony, with the larger second-laid egg (B-egg) hatching before the smaller first-laid egg (A-egg). Both a higher water vapour conductance and paren[...]
Article
Matthieu Guillemain, Auteur ; Maud Poisbleau, Auteur ; Leopold Denonfoux, Auteur ; Michel Lepley, Auteur ; Coraline Moreau, Auteur ; Gregoire Massez, Auteur ; Gilles Leray, Auteur ; Alain Caizergues, Auteur ; Céline Arzel, Auteur ; David Rodrigues, Auteur ; Hervé Fritz, AuteurCapsule Nasal saddles have no negative consequences apart from, under some circumstances, a potential bias in social relationships. Aims To test the effect of nasal saddles on Teal Anas crecca, Wigeon A. penelope, Mallard A. platyrhynchos and Pi[...]
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Maud Poisbleau, Auteur ; Hervé Fritz, Auteur ; Stephanie Dano, Auteur ; Marcel M. Lambrechts, AuteurFor long-term monogamous species, it may be important to have demographic, morphological, physiological and/or behavioural compatibility within pairs. We used field data on wild populations of Dark-bellied Brent Geese, a species showing extreme [...]
Article
Nina Dehnhard, Auteur ; Maud Poisbleau, Auteur ; Laurent Demongin, Auteur ; Petra Quillfeldt, AuteurSouthern Rockhopper Penguins (Eudyptes chrysocome chrysocome) have a strongly synchronised breeding cycle with a fixed pattern of nest attendance for males and females. We studied leucocyte profiles and the development of granulocyte/lymphocyte [...]
Article
Dominance relationships in Dark-bellied Brent Geese Branta bernicla bernicla at spring staging areas
Maud Poisbleau, Auteur ; Diane Desmonts, Auteur ; Hervé Fritz, AuteurSpring staging is an important period influencing reproductive success for migratory birds. During this period, female geese must accumulate reserves for subsequent migration, egg laying and incubation. They may increase feeding opportunities by[...]
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Nina Dehnhard, Auteur ; Maud Poisbleau, Auteur ; Laurent Demongin, Auteur ; Katrin Ludynia, Auteur ; Petra Quillfeldt, AuteurJuvenile survival is an important demographic parameter. Southern Rockhopper Penguins Eudyptes chrysocome have undergone a dramatic population decline in the past century across their distribution, but the demographic processes are poorly unders[...]
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Maud Poisbleau, Auteur ; Noel Guillon, Auteur ; Hervé Fritz, AuteurDominant and subordinate individuals in a group may benefit from the stability of the social dominance organisation, avoiding excessive waste of time and energy in aggressive interactions and reducing injury risks. Nevertheless, the likely evolu[...]
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Laurent Demongin, Auteur ; Maud Poisbleau, Auteur ; Georgina Strange, Auteur ; Ian J. Strange, Auteur
Article
Maud Poisbleau, Auteur ; Laurent Demongin, Auteur ; Hendrika J. van Noordwijk, Auteur ; Ian J. Strange, Auteur ; Petra Quillfeldt, AuteurFollowing recent phylogenetic work, Rockhopper Penguins were suggested to consist of two or three species. For the Southern Rockhopper Penguin Eudyptes c. chrysocome, sexual dimorphism has not been studied in detail, and only a few previous stud[...]
Article
Maud Poisbleau, Auteur ; Matthieu Guillemain, Auteur ; Laurent Demongin, Auteur ; David Carslake, Auteur ; Joan David, AuteurJuveniles of many birds establish dominance hierarchies within family social units, only to leave and compete to acquire dominance status in new social groups. Little is known about the role of sex, body mass, size or experience during the duckl[...]
