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Keywords: Aptenodytes patagonicus
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Journal Articles
J Exp Biol (2019) 222 (20): jeb208900.
Published: 17 October 2019
... within a short period while fasting ashore. During molt, king penguins ( Aptenodytes patagonicus ) lose half of their initial body mass, most importantly their insulating subcutaneous fat and half of their pectoral muscle mass. The latter might challenge their capacity to generate and sustain...
Journal Articles
J Exp Biol (2013) 216 (8): 1491–1500.
Published: 15 April 2013
...Anna P. Nesterova; Jules Chiffard; Charline Couchoux; Francesco Bonadonna SUMMARY King penguins ( Aptenodytes patagonicus ) live in large and densely populated colonies, where navigation can be challenging because of the presence of many conspecifics that could obstruct locally available cues. Our...
Journal Articles
J Exp Biol (2009) 212 (17): 2824–2829.
Published: 01 September 2009
... (`the food intake hypothesis') by experimentally reducing foraging success of King Penguins ( Aptenodytes patagonicus ). Although CORT levels overall decreased during a foraging trip, CORT levels did not differ between experimental birds and controls. These results demonstrate that mass gain at sea...
Journal Articles
J Exp Biol (2009) 212 (2): 210–216.
Published: 15 January 2009
... orientation in King Penguin ( Aptenodytes patagonicus )chicks that live in a large and densely populated colony. The two main objectives were to determine whether chicks displaced to a novel location away from the colony (i) can orient towards the colony and return to their crèche and (ii) rely on visual...
Journal Articles
J Exp Biol (2004) 207 (22): 3917–3926.
Published: 15 October 2004
... ) 9 8 2004 © The Company of Biologists Limited 2004 2004 The study was undertaken at the French station on Possession Island(46°25′S, 51°45′E), Crozet Archipelago during two consecutive austral summers (1998–1999 and 1999–2000). King penguins Aptenodytes patagonicus Miller 1778 used...
Journal Articles
J Exp Biol (2004) 207 (15): 2715–2724.
Published: 01 July 2004
.... T., Furuse, M. and Okumura, J. ( 1995 ). Inhibition of food passage by omeprazole in the chicken. Eur. J. Pharmacol. 273 , 161 -165. Ménard, J.-J. ( 1998 ). Conséquences hormonales et métaboliques du stress de contention chez le manchot royal (Aptenodytes patagonicus) . Veterinary thesis...
Journal Articles
J Exp Biol (2002) 205 (24): 3793–3798.
Published: 15 December 2002
... with those to unmodified (natural) calls. King penguins Aptenodytes patagonicus (Miller 1778) were studied at Possession island, Crozet archipelago (46°25′S,51°45′E) from December 1995 to January 1996 and at Kerguelen Island(49°14′S, 70°33′E) in March 2000. Field studies were conducted in two...
Journal Articles
J Exp Biol (2002) 205 (17): 2745–2754.
Published: 01 September 2002
... of this study was to determine whether a decrease in non-esterified fatty acid (NEFA) release from adipose tissue could be a component of this signal. Lipolytic fluxes and primary triacylglycerol:fatty acid (TAG:FA) cycling were determined in vivo in breeding, fasting king penguins ( Aptenodytes patagonicus...
Journal Articles
J Exp Biol (2002) 205 (16): 2511–2517.
Published: 15 August 2002
... against V̇ O 2 for subsequent use of f H to estimate V̇ O 2 in free-ranging animals. * Author for correspondence (e-mail: p.j.butler@bham.ac.uk ) 20 5 2002 © The Company of Biologists Limited 2002 2002 heart rate oxygen consumption penguin Aptenodytes patagonicus exercise...
Journal Articles
J Exp Biol (2002) 205 (9): 1189–1197.
Published: 01 May 2002
... 2002 © The Company of Biologists Limited 2002 2002 king penguin Aptenodytes patagonicus Adélie penguin Pygoscelis adeliae buoyancy diving dive depth data logger acceleration biomechanics Penguins are outstanding breath-hold divers. Despite their small body mass,Adélie...
Journal Articles
J Exp Biol (2001) 204 (12): 2133–2144.
Published: 15 June 2001
... ( Aptenodytes patagonicus ) were exercised on a variable-speed treadmill. These birds were allocated to four groups according to their sex and whether or not they had been fasting. Linear regression equations were used to describe the relationship between heart rate and the rate of oxygen consumption for each...