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Pflugers Archiv : European Journal of Physiology|November 25, 2003
Melatonin reduces noradrenaline-induced vasoconstriction in the uterine artery of pregnant hooded seals (Cystophora cristata)Karl-Arne Stokkan, Jo Jorem AarsethJournal of Pineal Research|August 23, 2003
Quantitative differences in the pineal ultrastructure of perinatal and adult harp (Phoca groenlandica) and hooded seals (Cystophora cristata)Jo Jorem Aarseth, Karl-Arne StokkanThe Journal of Experimental Biology|September 3, 2017
Waiting for the Sun: the circannual programme of reindeer is delayed by the recurrence of rhythmical melatonin secretion after the arctic nightDavid Hazlerigg, Arnoldus Schytte Blix, Karl-Arne StokkanThe Journal of Experimental Biology|December 25, 2012
The metabolic cost of incline locomotion in the Svalbard rock ptarmigan (Lagopus muta hyperborea): the effects of incline grade and seasonal fluctuations in body massJohn Lees, Lars Folkow, Karl-Arne Stokkan, et al.Physiology & Behavior|August 15, 2002
Food-anticipatory activity and liver per1-luc activity in diabetic transgenic ratsAlec J Davidson, Karl-Arne Stokkan, Shin Yamazaki, et al.Plos One|December 3, 2010
Reduced metabolic cost of locomotion in Svalbard rock ptarmigan (Lagopus muta hyperborea) during winterJohn Lees, Robert Nudds, Karl-Arne Stokkan, et al.Proceedings. Biological Sciences|August 19, 2011
Understanding sex differences in the cost of terrestrial locomotionJohn J Lees, Robert L Nudds, Lars P Folkow, et al.Current Biology : CB|March 16, 2010
A circadian clock is not required in an arctic mammalWeiqun Lu, Qing-Jun Meng, Nicholas J C Tyler, et al.Journal of Pineal Research|September 7, 2007
Adaptations for life in the Arctic: evidence that melatonin rhythms in reindeer are not driven by a circadian oscillator but remain acutely sensitive to environmental photoperiodKarl-Arne Stokkan, Bob E H van Oort, Nicholas J C Tyler, et al.Biology Open|May 13, 2015
The eyes of the deep diving hooded seal (Cystophora cristata) enhance sensitivity to ultraviolet lightChris Hogg, Magella Neveu, Lars Folkow, et al.Pageof 2