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Robisson P. (1992). Vocalizations in Aptenodytes penguins: application of the two-voice theory. Auk, 109(3), 654–658.
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Hannah Joy Kriesell, Céline Le Bohec, Alexander F. Cerwenka, Moritz Hertel, Jean-Patrice Robin, Bernhard Ruthensteiner, Manfred Gahr, Thierry Aubin, Daniel Normen Düring. (2020). Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production (Vol. 17). Bachelor's thesis, , .
Abstract: The astonishing variety of sounds that birds can produce has been the subject of many studies aiming to identify the underlying anatomical and physical mechanisms of sound production. An interesting feature of some bird vocalisations is the simultaneous production of two different frequencies. While most work has been focusing on songbirds, much less is known about dual-sound production in non-passerines, although their sound production organ, the syrinx, would technically allow many of them to produce “two voices”. Here, we focus on the king penguin, a colonial seabird whose calls consist of two fundamental frequency bands and their respective harmonics. The calls are produced during courtship and for partner and offspring reunions and encode the birds’ identity. We dissected, μCT-scanned and analysed the vocal tracts of six adult king penguins from Possession Island, Crozet Archipelago.
Programme: 119,137
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Charrier I., Mathevon N. & Jouventin P. (2003). Vocal signature recognition of mothers by fur seal pups. Animal behaviour, 65, 543–550.
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Mandish A., Massari A., Faraldi G., Pisano E., Vacchi M. & Hureau J.C. (1996). Vitellogenin immunoreactivity in the oocytes of the Antarctic fish Trematomus bernachii..
Abstract: Conference of European Comparative Endocrinologists, Rouen, Annales d'Endocrinologie
Programme: 281
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Mandich A., Massari A., Faraldi G., Pisano E., Vacchi M. & Hureau J.C. (1996). Vitellogenin immunoreactivity in the oocytes of the Antarctic fish Trematomus bernacchii. Ann. Endocrinol. (Paris), 57, 69.
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Berger, A., F. Jouanne, R. Hassani, and T. Villemin. (2008). Viscosity contrast between lower crust and upper mantle in Northern Iceland constrained by postrifting relaxation. Geophysical journal international, in press.
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Dedouit Fabrice, Géraut Annie, Baranov Vladimir, Ludes Bertrand, Rougé Daniel, Telmon Norbert, Crubézy Eric, . (2010). Virtual and macroscopical studies of mummies--differences or complementarity? Report of a natural frozen Siberian mummy.
. Forensic Sci. Int., 200(1-3), e7–e13.
Abstract: Since 2004, a multidisciplinary Franco-Russian expedition discovered in the Sakha Republic (Yakutiya) more than 60 tombs preserved by the permafrost. In July 2006, an exceptionally well-preserved mummy was unearthed. The coffin, burial furniture and clothes suggested a shaman's tomb. Multislice computed tomography (MSCT) was performed before autopsy with forensic and anthropological aims. Forensic study aimed to detect any lesions and determine the manner of death. Anthropological study aimed to determine the mummy's gender, age at death, morphological affinity, stature and body mass. She was female and virginity status was assessed. The radiological and forensic conclusions were compared. Imaging confirmed most autopsy findings, suggesting that death followed disseminated infection. MSCT could not formally exclude a traumatic death because close examination of the skin was difficult, but was superior to conventional autopsy in diagnosis of infectious lesions of the left sacroiliac joint and one pelvic lesion. Autopsy detected a post-infectious spinal lesion, misinterpreted on MSCT as a Schmorl's node. However, most conclusions of virtual and conventional anthropological studies agreed. Age at death was estimated around 19 years old. The morphology of the mummy was mongoloid. MSCT identified the craniometric characteristics as similar to those of the Buryat population. The deceased's stature was 146 cm and estimated body mass was 49 kg. MSCT demonstrated its great potential and complementarity with conventional autopsy and anthropological techniques in the study of this natural female mummy buried in 1728.
Programme: 1038
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Gerday C. (1997). Vie aux températures extrêmes. Probio-revue, 4, 283–296.
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Thiebot JB, Raclot T, Poupart T, RopertCoudert Y, Takahashi A. (2015). Video loggers suggest that Adélie penguins (sometimes) eat jellyfish. 2nd World Seabird Conference, Cape Town, South Africa, 26-30/10/2015.
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Lescarmontier L, Legrésy B, Coleman R, Perosanz F, Mayet C, Testut L, . (2012). Vibrations of Mertz Glacier ice tongue, East Antarctica
. Journal of Glaciology, 58(210), 665–676.
Abstract: At the time of its calving in February 2010, Mertz Glacier, East Antarctica, was characterized by a 145 km long, 35 km wide floating tongue. In this paper, we use GPS data from the Collaborative Research into Antarctic Calving and Iceberg Evolution (CRAC-ICE) 2007/08 and 2009/10 field seasons to investigate the dynamics of Mertz Glacier. Two months of data were collected at the end of the 2007/08 field season from two kinematic GPS stations situated on each side of the main rift of the glacier tongue and from rock stations located around the ice tongue during 2008/09. Using Precise Point Positioning with integer ambiguity fixing, we observe that the two GPS stations recorded vibrations of the ice tongue with several dominant periods. We compare these results with a simple elastic model of the ice tongue and find that the natural vibration frequencies are similar to those observed. This information provides a better understanding of their possible effects on rift propagation and hence on the glacier calving processes.
Programme: 688;1050
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