Arctic chronobiology and physiology

Publications

Popular science articles of our research

Endurance physiology in Huskys (in Norwegian)

European research council funded hibernation project (in Norwegian)

Peer-reviewed articles

2023

Lean FZX, Cox R, Madslien K, Spiro S, Nymo IH, Bröjer C, Neimanis A, Lawson B, Holmes P, Man C, Folkow LP, Gough J, Ackroyd S, Evans L, Wrigglesworth E, Grimholt U, McElhinney L, Brookes SM, Delahay RJ, Núñez. Tissue distribution of angiotensin-converting enzyme 2 (ACE2) receptor in wild animals with a focus on artiodactyls, mustelids and phocids. One Health 16: 100492 https://doi.org/10.1016/j.onehlt.2023.100492
Davidson RK, Fæste CK, Uhlig S, Tukun F-L, Lian H, Solvang HA, Thorvaldsen R, Folkow LP, Romano JS, Kilvær MV, Holmgren KE, Nymo IH (2023) Pharmakcokinetics of a long-acting subcutaneous eprinomectin injection in semi-domesticated reindeer (rangifer tarandus tarandus) – a pilot study. Environ Toxicol Pharmacol 97: 104041 https://doi.org/10.1016/j.etap.2022.104041
Nymo IH, Siebert U, Baechlein C, Postel A, Breines EM, Lydersen C, Kovacs KM, Tryland M (2023) Pathogens exposure in white whales (Delphinapterus leucas) in Svalbard, Norway. Pathogens12:58. https://doi.org/10.3390/pathogens12010058
Duarte V, Gaetano P, Striberny A, Hazlerigg D, Jørgensen EH, Fuentes J, Campinho MA (2023) Modulation of intestinal growth and differentiation by photoperiod and dietary treatment during smoltification in Atlantic salmon (Salmo salar, L.) Aquaculture 566: 739164 https://doi.org/10.1016/j.aquaculture.2022.739164
Flekkøy EG, Folkow LP, Kjelstrup S, Mason MJ, Wilhelmsen Ø (2023) Thermal modeling of the respiratory turbinates in arctic and subtropical seals. J Therm Biol 112: 103402 https://doi.org/101016/j.jthermbio.2022.103402
Tryland M, Romano JS, Nymo IH, Mørk T, Þórarinsdóttir R, Breines EM, Li H, Cunha CW, Thórisson SG (2023) A screening for virus infections among wild Eurasian tundra reindeer (Rangifer tarandus tarandus) in Iceland, 2017-2019. Viruses, 15: 317 https://doi.org/10.3390/v15020317
Gaetano P, Duarte V, Striberny A, Hazlerigg D, Jørgensen EH, Campinho MA, Fuentes J (2023) Photoperiod and dietary treatment in freshwater modulate the short-term intestinal response to seawater in Atlantic salmon (Salmo salar). Aquaculture 568: 739316 https://doi.org/10.1016/j.aquaculture.2023.739316

2022

Blix AS, Folkow LP, Mercer JB (2022) The history of thermal physiology in Norway. Ch. 12 in: Blatteis CM, Taylor NAS, Mitchell D (eds) Thermal History – A Worldwide History, Perspectives in Physiology. The American Physiological Society, Springer, New York, pp.569-596, https://doi.org/10.1007/978-1-0716-2362-6_12
Dell KJ, Blix AS (2022) The Norwegian philosopher Peter Wessel Zapffe (1899-1990) and the book of Job. Trans R Norw Soc Sci Lett 2022(1), 5-25
Geβner C, Krüger A, Folkow LP, Fehrle W, Mikkelsen B, Burmester T (2022) Transcriptomes suggest that pinniped and cetacean brains have a high capacity for aerobic metabolism while reducing energy-intensive processes such as synaptic transmission. Front Mol Neurosci 15: Article 877349 https://doi.org/10.3389/fnmol.2022.877349
Hamilton CD, Lydersen C, Aars J, Acquarone M, Atwood T, Baylis A, Biuw M, Boltunov AN, Born EW, Boveng P, Brown TM, Cameron M, Citta J, Crawford J, Dietz R, Elias J, Ferguson SH, Fisk A, Folkow LP, Frost KJ, Glazov DM, Granquist SM, Gryba R, Harwood L, Haug T, Heide-Jørgenssen MP, Hussey NE, Kalinek J, Laidre KL, Liovka DI, London JM, Loseto LL, MacPhee S, Marcoux M, Matthews CJD, Nilssen K, Nordøy ES, O’Corry-Crowe G, Øien N, Olsen MT, Quakenbush L, Rosing-Asvid A, Semenova V, Shelden KE, Shpak OV, Stenson G, Storrie L, Sveegaard S, Teilmann J, Ugarte F, Von Duyke AL, Watt C, Wiig Ø, Wilson, RR, Yurkowski DJ, Kovacs KM (2022) Marine mammal hotspots across the circumpolar Arctic. Diversity and Distribution 00:1-25 https://doi.org/10.1111/ddi.13543
Hansen KK, Turi I, Sundset MA, Mathiesen SD (2022) Bridging traditional and scientific knowledge on reindeer meat smoking – a pilot study. Int J Circumpol. Health 81: 2073056 https://doi.org/10.1080/22423982.2022.2073056
Sundset MA, Sandvoll R (2022) Academic development through a collective approach – introducing peer observation of teaching in a multidisciplinary faculty. Nordic Journal of STEM Education, 6(1): 16-27 https://doi.org/10.5324/njsteme.v16i1.4260
Grecian WJ, Stenson GB, Biuw M, Boehme L, Folkow LP, Goulet PJ, Jonsen ID, Malde A, Nordøy ES, Rosing-Asvid A, Smout S (2022) Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator. R. Soc. Open Sci. 9: 211042 https://doi.org/10.1098/rsos.211042

2021

Gundappa MK, To T-H, Grønvold L, Martin SAM, Lien S, Geist J, Hazlerigg D, Sandve SR, Macqueen DJ (2021) Genome-wide reconstruction of rediploidization following autopolyploidization across one hundred million years of salmonid evolution. Mol Biol Evol https://doi.org/10.1093/molbev/msab310
Blix AS (2021) Biografi over Theodor Christian Brun Frølich (29. September 1870 – 14. August 1947). Årbok 2020 fra Det Kongelige Norske Videnskabers Selskab, 65-70
Eerkes-Medrano D, Aldridge D, Blix AS (2021) North Atlantic minke whale (Balaenoptera acutorostrata) feeding habits and migrations evaluated by stable isotope analysis of baleen. Ecology and Evolution 11(22):16344-16353 https://doi.org/10.1002/ece3.8224
Marmol-Guijarro AC, Folkow LP, Codd JR (2021) The influence of snow properties on speed and gait in the Svalbard rock ptarmigan (Lagopus muta hyperborea). Integrative Organismal Biology 3(1):obab021.doi: 10.1093/iob/obab021. eCollection 2021. https://doi.org/10.1093/iob/obab021
Wege M, Bornemann H, Blix AS, Nordøy ES, Biddle L, Bester MN (2021) Distribution and habitat suitability of Ross seals in warming ocean. Front Mar Sci 8:659430 https://doi.org/10.3389/fmars.2021.659430
Marmol-Guijarro A, Nudds R, Folkow LP, Lees J, Codd JR (2021) Does posture explain the kinematic differences in a grounded running gait between male and female Svalbard rock ptarmigan (Lagopus muta hyperborea) moving on snow? Polar Biol https://doi.org/10.1007/s00300-021-02872-x
Ebling FJP, Fletcher J, Hazlerigg DG (2021) Gerald Lincoln: A man for all seasons. J Endocrinol 00:e12968, https://doi.org/10.1111/jne.12968
van Rosmalen L, van Dalum J, Appenroth D, Roodenrijs RTM, de Wit L, Hazlerigg DG, Hut RA (2021) Mechanisms of temperature modulation in mammalian seasonal timing. The FASEB Journal, 35:e21605 https://doi.org.10.1096/fj.202100162R
Appenroth D, Wagner GC, Hazlerigg DG, West AC (2021) Evidence for circadian-based photoperiodic timekeeping in Svalbard ptarmigan, the northernmost resident bird. Current Biol 31:1-8 https://doi.org/10.1016/j.cub.2021.04.009
West AC, Mizoro Y, Wood SH, Ince LM, Iversen M, Jørgensen EH, Nome T, Sandve SR, Martin SAM, Loudon ASI, Hazlerigg DG (2021) Immunologic profiling of the Atlantic salmon gill by single nuclei transcriptomics. Frontiers in Immunology 12:669889 https://doi.org/10.3389/fimmu.2021.669889
Appenroth D, Nord A, Hazlerigg DG, Wagner GC (2021) Body temperature and activity rhythms under different photoperiods in high Arctic Svalbard ptarmigan (Lagopus muta hyperborea). Front Physiol 12:633866 https://doi.org/10.3389/fphys.2021.633866
Pinzone M, Nordøy ES, Eppe G, Malherbe C, Das K, Collard F (2021) First record of plastic debris in the stomach of a hooded seal pup from the Greenland Sea. Marine Pollution Bulletin 167:112350 https://dx.doi.org/10.1016/j.marpolbul.2021.112350
Ushida K, Kock R, Sundset MA (2021) Special issue: wildlife microbiology. Microorganisms 9, 1968. https://doi.org/10.3390/microorganisms9091968
Poto MP, Elvevoll EO, Sundset MA, Eilertsen K-E, Morel M, Jensen I-J (2021) Suggestions for a systematic regulatory approach to ocean plastics. Foods, 10, 2197. https://doi.org/10.3390/foods10092197
Iversen M, Mulugeta T, West AC, Jørgensen EH, Martin SAM, Sandve SR, Hazlerigg D (2021) Photoperiod-dependent developmental reprogramming of the transcriptional response to seawater entry in Atlantic salmon (Salmo salar). G3 journal 11:jkab072 https://doi.org/10.1093/g3journal/jkab072
Markussen FAF, Melum VJ, Bothorel B, Hazlerigg DG, Simmoneaux V, Wood S (2021) A refined method to monitor arousal from hibernation in the European hamster. BMC Veterinary Research (2021) 17:14 https://doi.org/10.10.1186/s12917-020-02723-7
Striberny A, Lauritzen DE, Fuentes J, Campinho MA, Gaetano P, Duarte V, Hazlerigg DG, Jørgensen EH (2021) More than one way to smoltify a salmon? Effects of dietary and light treatment on smolt development and seawater growth performance in Atlantic salmon. Aquaculture 532:736044 https://doi.org/10.1016/j.aquaculture.2020.736044
Hamilton CD, Lydersen C, Aars J, Biuw M, Boltunov AN, Born EW, Dietz R, Folkow LP, Glazov DM, Haug T, Heide-Jørgenssen MP, Kettemer LE, Laidre KL, Øien N, Nordøy ES, Rikardsen AH, Rosing-Asvid A, Semenova V, Shpak OV, Sveegaard S, Ugarte F, Wiig Ø, Kovacs KM (2021) Marine mammal hotspots in the Greenland and Barents Seas. Mar Ecol Prog Ser 659: 3-28https://doi.org/10.3354/meps13584
Wood SH (2021) The Pars Tuberalis and seasonal timing. In (eds: Ebling FJP, Piggins HD) Neuroendocrine Clocks and Calendars, Ch. 2, Masterclass in Neuroendocrinology 10, Springer Nature Switzerland AG, Cham, pp. 33-54 ISBN 978-3-030-55642-6 https://doi.org/10.1007/978-3-030-55643-3
West AC, Hazlerigg DH, Greier G (2021) Calendar timing in Teleost fish. In (eds: Ebling FJP, Piggins HD) Neuroendocrine Clocks and Calendars, Ch. 7, Masterclass in Neuroendocrinology 10, Springer Nature Switzerland AG, Cham, pp. 143-162 ISBN 978-3-030-55642-6 https://doi.org/10.1007/978-3-030-55643-3

2020

Blix AS (2020) A possible cause of Sudden Infant Death Syndrome. Medical Hypotheses 136:109520 https://doi.org/10.1016/j.mehy.2019.109520
Krüger A, Fabrizius A, Mikkelsen B, Siebert U, Folkow LP, Burmester T (2020) Transcriptome analysis reveals a high aerobic capacity in the whale brain. Comp Biochem Physiol A 240:110593 https://doi.org/10.1016/j.cbpa.2019.110593
van Dalum J, Melum VJ, Wood SH, Hazlerigg DG (2020) Maternal photoperiodic programming: melatonin and seasonal synchronization before birth. Frontiers in Endocrinology 10:Article 901 https://doi.org/10.3389/fendo.2019.00901
Mason MJ, Wenger LMD, Hammer Ø, Blix AS (2020) Structure and function of respiratory turbinates in phocid seals. Polar Biol 43:157-173 https://doi.org/10.1007/s00300-019-02618
Hindell MA, Reisinger RR, Ropert-Coudert Y, Hückstädt LA, Trathan PN, Bornemann H, Charrassin J-B, Chown SL, Costa DP, Danis B, Lea M-A, Thompson D, Torres LG, Van de Putte AP, Alderman R, Andrews-Goff V, Arthur B, Ballard G, Bengtson J, Bester MN, Blix AS, Boehme L, Bost C-A, Boveng P, Cleeland J, Constantine R, Corney S, Crawford RJM, Dalla Rosa L, de Bruyn PJN, Delord K, Descamps S, Double M, Emmerson L, Fedak M, Friedlaender A, Gales N, Goebel ME, Goetz KT, Guinet C, Goldsworthy SD, Harcourt R, Hinke JT, Jerosch K, Kato A, Kerry KR, Kirkwood R, Kooyman GL, Kovacs KM, Lawton K, Lowther AD, Lydersen C, Lyver PO’B, Makhado AB, Márquez MEI, McDonald BI, McMahon CR, Muelbert M, Nachtsheim D, Nicholls KW, Nordøy ES, Olmastroni S, Phillips RA, Pistorius P, Plötz J, Pütz K, Ratcliffe N, Ryan PG, Santos M, Southwell C, Staniland I, Takahashi A, Tarroux A, Trivelpiece W, Wakefield E, Weimerskirch H, Wienecke B, Xavier JC, Wotherspoon S, Jonsen ID, Raymond B (2020) Tracking of marine predators to protect Southern Ocean ecosystems. Nature https://doi.org/10.1038/s41586-020-2126-y
Ropert-Coudert Y, Van de Putte AP, Reisinger RR, Bornemann H, Charrassin J-B, Costa DP, Danis B, Hückstädt LA, Jonsen ID, Lea M-A, Thompson D, Torres LG, Trathan PN, Wotherspoon S, Ainley DG, Alderman R, Andrews-Goff V, Arthur B, Ballard G, Bengtson J, Bester MN, Blix AS, Boehme L, Bost C-A, Boveng P, Cleeland J, Constantine R, Crawford RJM, Dalla Rosa L, de Bruyn PJN, Delord K, Descamps S, Double M, Emmerson L, Fedak M, Friedlaender A, Gales N, Goebel ME, Goetz KT, Guinet C, Goldsworthy SD, Harcourt R, Hinke JT, Jerosch K, Kato A, Kerry KR, Kirkwood R, Kooyman GL, Kovacs KM, Lawton K, Lowther AD, Lydersen C, Lyver PO’B, Makhado AB, Márquez MEI, McDonald BI, McMahon CR, Muelbert M, Nachtsheim D, Nicholls KW, Nordøy ES, Olmastroni S, Phillips RA, Pistorius P, Plötz J, Pütz K, Ratcliffe N, Ryan PG, Santos M, Southwell C, Staniland I, Takahashi A, Tarroux A, Trivelpiece W, Wakefield E, Weimerskirch H, Wienecke B, Xavier JC,Raymond B Hindell MA (2020) The retrospective analysis of Antarctic tracking data project. Scientific Data 7:94 (11pp) https://doi.org/10.1038/s41597-020-0406-x
Marmol-Guijarro A, Nudds R, Folkow L, Codd J (2020) Examining the accuracy of trackways for predicting gait selection and speed of locomotion. Frontiers in Zoology 17:17 https://doi.org/10.1186/s12983-020-00363-z
Nord A, Hegemann A, Folkow LP (2020) Reduced immune responsiveness contributes to winter energy conservation in an Arctic bird. J Exp Biol 223: jeb219287 https://doi.org/10.1242/jeb.219287
Solberg SBB, Kjelstrup S, Manganelli E, Kizilova N, Casado Barroso IL, Acquarone M, Folkow LP (2020) Energy efficiency of respiration in mature and newborn reindeer. J Comp Physiol B 190(4), 509-520 https://doi.org/10.1007/s00360-020-01284-3
Lomet D, Druart X, Hazlerigg D, Beltramo M, Dardentes H (2020) Circuit-level analysis identifies target genes of sex steroids in ewe seasonal breeding. Mol Cell Endocrinol 512: 110825 https://doi.org/10.1016/j.mce.2020.110825
Sáenz de Miera C, Beymer M, Routledge K, Król E, Selman C, Hazlerigg DG, Simonneaux V (2020) Photoperiodic regulation in a wild-derived mouse strain. J Exp Biol 223: jeb217687 https://doi.org/10.1242/jeb.217687
Iversen M, Mulugeta T, Blikeng BG, West AC, Jørgensen EH, Sandven SR, Hazlerigg D (2020) RNA profiling identifies novel, photoperiod-history dependent makers associated with enhanced saltwater performance in juvenile Atlantic salmon. PLoS ONE 15(4): e0227496 https://doi.org/10.1371/journal.pone.0227496
Tyler NJC, Gregorini P, Parker KL, Hazlerigg DG (2020) Animal responses to environmental variation: physiological mechanisms in ecological models of performance in deer (Cervidae). Animal Production Science https://doi.org/10.1071/AN19418
Appenroth D, Melum VJ, West AC, Dardentes H, Hazlerigg DG, Wagner GC (2020) Photoperiodic induction without light-mediated circadian entrainment in a high-Arctic resident bird. J Exp Biol 223, jeb220699 https://doi.org/10.1242/jeb220699
Wood SH, Hindle MM, Mizoro Y, Cheng Y, Saer BRC, Miedzinska K, Christian HC, Begley N, McNeilly J, Meddle SL, Burt DW, Loudon ASI (2020) Circadian clock mechanism driving mammalian photoperiodism. Nature Communications 11:4291 https://doi.org/10.1038/s41467-020-18061-z
West AC, Iversen M, Jørgensen EH, Sandve SR, Hazlerigg DG, Wood SH (2020) Diversified regulation of circadian clock gene expression following whole genome duplication. PLoS Genetics16:e1009097 https://doi.org/10.1371/journal.pgen.1009097
Gessner C, Stillger MN, Mölders N, Fabrizius A, Folkow LP, Burmester T (2020) Cell culture experiments reveal that high S100B and clusterin levels may convey hypoxia-tolerance to the hooded seal (Cystophora cristata) brain. Neuroscience 451: 226-239 https://doi.org/10.1016/j.neuroscience.2020.09.039
Acquarone M, Salgado-Flores A, Sundset MA (2020) The bacterial microbiome in the small intestine of hooded seals (Cystophora cristata). Microorganisms 8:1664 https://doi.org/10.3390/microorganisms8111664
van Rosmalen L, van Dalum J, Hazlerigg DG, Hut RA (2020) Gonads or body? Differences in gonadal and somatic photoperiodic growth response in two vole species. J Exp Biol 223, jeb230987 https://doi.org/10.1242/jeb230987
de la Vega C, Mahaffey C, Tuerena RE, Yurkowski DJ, Ferguson SH, Stenson GB, Nordøy ES, Haug T, Biuw M, Smout S, Hopkins J, Tagliabue A, Jeffreys RM (2020) Arctic seals as tracers of environmental and ecological change. Limnol Oceanogr Lett https://doi.org/10.1002/lol2.10176
Blix AS (2020) Peter Jul Melleby in memoriam. Polarboken 2019 – 2020. Oslo, Norsk Polarklubb, pp. 138-140.
Blix AS (2020) Livet på ishavet. Polarboken 2019-2020. Oslo, Norsk Polarklubb, pp. 50-54.
Blix AS (2020) M/S Polstjerna fra Moen – Norges fineste selfangstskute. Sønderled og Risør Historielag Årbok 2020, pp. 5-12.

2019

Węgrzyn MH, Wietrzyk-Pełka P, Galanty A, Cykowska-Marzencka B, Sundset MA (2019) Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus). Polar Research 38, 3375 https://dx.doi.org/10.33265/polar.v38.3375.
Salgado-Flores A, Tveit AT, Wright A-D, Pope PB, Sundset MA (2019) Characterization of the cecum microbiome from wild and captiverock ptarmigans indigenous to Arctic Norway. PLoS ONE 14(3):e0213503 https://doi.org/10.1371/journal.pone.0213503.
Alvira-Iraizoz F, Nordøy ES (2019) Evidence of seawater drinking in fasting subadult hooded seals (Cystophora cristata). J Anim Behav Biometeorol 7:52-59 doi.org/10.31893/2318-1265jabb.v7n2p52-59
Dardente H, Wood S, Ebling F, Sáenz de Miera (2019) An integrated view of mammalian seasonal endocrinology. J Endocrinol 31:e12729 https://doi.org/10.1111/jne.12729.
Pasquali V, Calizza E, Setini A, Hazlerigg D, Christoffersen KS (2019) Preliminary observations on the effect of light and temperature on the hatching success and rate of Lepidurus arcticus eggs. Ethology, Ecology & Evolution https://doi.org/10.1080/03949370.2019.1609093.
Nord A, Folkow LP (2019) Ambient temperature effects on stress-induced hyperthermia in Svalbard ptarmigan. Biology Open 8:bio043497 https://doi.org/10.1242/bio.043497
Striberny A, Jørgensen EH, Klopp C, Magnanou E (2019) Arctic charr brain transcriptome strongly affected by summer seasonal growth but only subtly by feed deprivation. BMC Genomics 20:529 https://doi.org/10.1186/s12864-019-5874-z
Hazlerigg DG, Tyler NT (2019) Activity patterns in mammals: Circadian dominance challenged. PLoS Biology 17(7):e3000360 https://doi.org/10.1371/journal.pbio.3000360
Marmol-Guijarro A, Nudds R, Marrin J, Folkow LP, Codd J (2019) Terrestrial locomotion of the Svalbard rock ptarmigan: comparing field and laboratory treadmill studies. Scientific Reports 9:11451 https://doi.org/10.1038/s41598-019-47989-6
Dardente H, Lomet D, Chesneau D, Pellicer-Rubio M-T, Hazlerigg D (2019) Discontinuity in the molecular neuroendocrine response to increasing daylengths in the Ile-de-France ewes: Is transient Dio2 induction a key feature of circannual timing? J Neuroendocrinol 2019:e12775 https://doi.org/10.1111/jne.12775
Denker E, Ebbesson LO, Hazlerigg DG, Macqueeen DJ (2019) Phylogenetic reclassification of vertebrate melatonin receptors to include Mel1d. G3: Genes Genomes Genetics 9(10):3225-3238 https://doi.org/10.1534/g3.119.400170
Blévin P, Aars J, Andersen M, Blanchet M-A, Hanssen L, Herzke D, Jeffreys RM, Nordøy ES, Pinzone M, de la Vega C, Routti H (2019) Pelagic vs coastal – key drivers of pollutant levels in Barents Sea polar bears with contrasted space-use strategies. Environ Sci Technol https://doi.org/10.1021/acs.est.9b04626
Nymo IH, Davidson RK, Gilhuus M, Holmgren K, Mørk T, Lian H, Thorvaldsen R, Solvang HA, Folkow L, Tryland M (2019) Egglederbetennelse hos Svalbardryper i fangenskap. Norsk Veterinærtidsskrift 131(7):444-445
Bradley MM, Perra M, Ahlstrøm Ø, Jenssen BM, Jørgensen EH, Fuglei E, Muir DCG, Sonne C (2019) Mandibular shape in farmed Arctic foxes (Vulpes lagopus) exposed to persistent organic pollutants. Sci Tot Environ 646:1063-1068

2018

Nord A, Folkow LP (2018) Seasonal variation in the thermal responses to changing environmental temperature in the world’s northernmost land bird. J Exp Biol doi:10.1242/jeb.171124
Lomet D, Piégu B, Wood SH, Dardentes H (2018) Anti-angiogenic VEGFAxxxb transcripts are not expressed in the medio-basal hypothalamus of the seasonal sheep. PLoS ONE 13(5): e 0197123 https://doi.org/10.1371/journal.pone.0197123
West AC, Wood SH (2018) Seasonal physiology: making the future a thing of the past. Curr Opin Physiol 5: 1-8 https://doi.org/10.1016/j.cophys.2018.04.006
Gauthier PT, Evenset A, Christensen GN, Jørgensen EH, Vijayan MM (2018) Lifelong exposure to PCBs in the remote Norwegian Arctic disrupts the plasma stress metabolome in arctic charr. Environ Sci Technol 52: 868-876. doi:10.1021/acs.est.7b05272
Sonne C, Andersen-Ranberg E, Rajala EL, Agerholm JS, Bonefeld-Jørgensen E, Desforges J-P, Eulaers I, Jenssen BM, Koch A, Rosing-Asvid A, Siebert U, Tryland M, Mulvad G, Härkönen T, Acquarone M, Nordøy ES, Dietz R, Magnusson U (2018) Seroprevalence for Brucella spp. In the Baltic ringed seal (Phoca hispida) and East Greenland harp (Pagophilus groenlandicus) and hooded (Cystophora cristata) seals. Veterinary Immunology and Immunopathology 198: 14-18. https://doi.org/10.106/j.vetimm.2018.02.005
Blix AS (2018) Adaptations to deep and prolonged diving in phocid seals. J Exp Biol 221:jeb182972 https://doi.org/10.1242/jeb.182972
Blanchet M-A, Acquarone M, Biuw M, Larsen R, Nordøy ES, Folkow LP (2018) A life after research? First release of harp seals (Pagophilus groenlandicus) after temporary captivity for scientific purposes. Aquatic Mammals 44(4): 343-356 https://doi.org/10.1578/AM.44.4.2018.343
Hazlerigg D, Lomet D, Lincoln G, Dardentes H (2018) Neuroendocrine correlates of the critical day length response in the Soay sheep. J Neuroendocrin 2018;e12631 https://doi.rog/10.1111/jne.12631
Andersen-Ranberg EU, Barnes CJ, Rasmussen L, Salgado-Flores A, Grøndahl C, Mosbacher JB, Hansen AJ, Sundset MA, Schmidt NM, Sonne C (2018) A comparative study on the faecal bacterial community and potential zoonotic bacteria of muskoxen (Ovibos moschatus) in northeast Greenland, northwest Greenland and Norway. Microorganisms 6, 76; https://doi.org/10.3390/microorganisms6030076
Strand JET, Hazlerigg D, Jørgensen EH (2018) Photoperiod revisited: is there a critical day length for triggering a complete parr-smolt transformation in Atlantic salmon Salmo salar) J Fish Biol 93: 440-448 https://doi.org/10.1111/jfb.13760
Hansen KK, Sundset MA, Folkow LP, Nilsen M, Mathiesen SD (2018) Enteric methane emissions are lower from reindeer fed lichens compared to a concentrate feed. Polar Research 37:1, 1505396, https://www.tandfonline.com/doi/full/10.1080/17518369.2018.1505396
Wood SH (2018) How can a binary switch within pars tuberalis control seasonal timing of reproduction? J Endocrinol 239: R13-R25 https://doi.org/10.1530/JOE-18-0177

2017

Hoff MLM, Fabrizius A, Czech-Damal NU, Folkow LP, Burmester T (2017) Transcriptome analysis identifies key metabolic changes in the hooded seal (Cystophora cristata) brain in response to hypoxia and reoxygenation. PLoS ONE 12(1):e0169366. doi:10.1371/journal.pone.0169366
Folkow LP, Blix AS (2017) On the importance of understanding physiology when estimating energetics in cetaceans. Biology Open 6: 306-308
Striberny A, Jørgensen EH (2017) Feedback from Arctic charr: Feed flavor stimulation and re-feeding after feed deprivation stimulates genes encoding both orexigenic and anorexigenic neuropeptides. Gen Comp Endocrinol 246:71-80.
Lorgen M, Jorgensen EH, Jordan WC, Martin SAM, Hazlerigg DG (2017) NFAT5 genes are part of the osmotic regulatory system in Atlantic salmon (Salmo salar). Marine Genomics 31: 25-31. https://doi.org/10.1016/j.margen.2016.06.004
Jørgensen EH, Haatuft A, Puvanendran V, Mortensen A (2017) Effects of reduced water exchange rate and oxygen saturation on growth and stress indicators of juvenile lumpfish (Cyclopterus lumpus L.) in aquaculture. Aquaculture 474: 26-33. http://dx.doi.org/10.1016//j.aquaculture.2017.03.019
Jørgensen EH, Maule AG, Evenset A, Christensen G, Bytningsvik J, Frantzen M, Nikiforov V, Faught E, Vijayan MM (2017) Biomarker response and hypothalamus-pituitary-interrenal axia functioning in Arctic charr from Bjørnøya (74°30’N), Norway, with high levels of organohalogenated compounds. Aquat Toxicol 187: 64-71. http://dx.doi.org/10.1016/j.aquatox.2017.03.017
Moghadam HK, Johnsen H, Robinson N, Andersen Ø, Jørgensen EH, Johnsen HK, Bæhr V, Tveiten H (2017) Impact of early life stress on the methylome and transcriptome of Atlantic salmon. Scientific Reports 7:5023 http://dx.doi.org/10.1038/s41598-017-05222-2
Sáenz de Miera C, Bothorel B, Jaeger C, Simonneaux V, Hazlerigg D (2017) Maternal photoperiod programs hypothalamic thyroid status via the fetal pituitary gland. Proc Natl Acad Sci USA 114: 8408-8413 www.pnas.org/cgi/doi/10.1073/pnas.1702943114
Desforges J-P, Levin M, Jasperse L, De Guise S, Eulaers I, Letcher RJ, Acquarone M, Nordoy E, Folkow L, Jensen TH, Grondahl C, Bertelsen MF, St Leger J, Almunia J, Sonne C, Dietz R (2017) Effects of polar bear and killer whale derived contaminant cocktails on marine mammal immunity. Environ Sci Technol 51; 11431-11439, http://dx.doi.org/10.1021/acs.est.7b03532
Lomet D, Cognié J, Chesneau D, Dubois E, Hazlerigg D, Dardente H (2017) The impact of thyroid hormone in seasonal breeding has a restricted transcriptional signature. Cell Mol Life Sci DOI 10.1007/s00018-017-2667-x
Hau M, Dominoni D, Casagrande S, Buck CL, Wagner G, Hazlerigg D, Greives T, Hut RA (2017) Timing as a sexually selected trait: the right mate at the right moment. Phil Trans R Soc B 372: 20160249. http://dx.doi.org/10.1098/rstb.2016.0249
Hazlerigg D, Blix AS, Stokkan K-A (2017) Waiting for the sun: the circannual programme of reindeer is delayed by the recurrence of rhythmical melatonin secretion after the arctic night. J Exp Biol 220: 3869-3872 doi:10.1242/jeb.163741
Philip AM, Jørgensen EH, Maule AG, Vijayan MM (2018) Extended fasting does not affect the liver innate immune response in rainbow trout. Developmental and Comparative Immunology 79: 67-74 https://doi.org/10.1016/j.dci.2017.10.009
Rogstad T, Sonne C, Villanger GD, Ahlstrøm Ø, Fuglei E, Muir DCG, Jørgensen E, Jenssen BM (2017) Concentrations of vitamin A, E, thyroid and testosterone hormones in blood plasma and tissues from emaciated adult male Arctic foxes (Vulpes lagopus) dietary exposed to persistent organic pollutants (POPs). Environ Res 154: 284-290.
Nordøy ES, Lager AR, Schots PC (2017) Seasonal changes in background levels of deuterium and oxygen-18 prove water drinking by harp seals, which affects the use of the doubly labelled water method. J Exp Biol 220: 4450-4455.
Allern M, Sundset MA, Sandvoll R (2017) Peer observation of teaching as motivation for educational development – from teaching as private enterprise to a collective approach. 2nd EuroSoTL conference, June 8-9 2017, Lund, Sweden, 5 pp.
Blix AS (2017) Arktisk Forening Tromsø 1947 – 2017. BokstavHuset AS, Tromsø ISBN 978-82-996604-1-9, 98 pp.
Blix AS (2017) Fra herregård til herreklubb: Søndre Tollbodgate 1 i Tromsø. ISBN 978-82-991656-1-7
Laws RM (2017) Large animals and wide horizons. Eds: Ian and Christine Parker and Arnoldus Schytte Blix, Janus Publishing Company LTD, Cambridge ISBN 978-1-85756-864-6

2016

Jørgensen EH, Bernier NJ, Maule AG, Vijayan MM (2016) Effect of long-term fasting and a subsequent meal on mRNA abundance of hypothalamic appetite regulators, central and peripheral leptin expression and plasma leptin levels in rainbow trout. Peptides 86: 162-170. http://dx.doi.org/10.1016/j.peptides.2015.08.010
Blix AS (2016) Om Nansenmedaljen og andre Nansenmedaljer. Den Norske Videnskaps-Akademi Årbok 2015, pp. 289-295.
Tyler NJC, Stokkan K-A, Hogg CR, Nellemann C, Vistnes AI (2016) Cryptic impact: visual detection of corona light and avoidance of power lines by reindeer. Wildl Soc Bull 40:50-58 DOI: 10.1002/wsb.620
Blix AS (2016) On Roald Amundsen’s scientific achievements. Polar Research 35, 31319, http://dx.doi.org/10.3402/polar.v35.31319
Wohlert D, Kröger J, Witt M, Schmitt O, Wree A, Czech-Damal N, Siebert U, Folkow L, Hanke F (2016) A comparative morphometric analysis of three cranial nerves in two phocids: The hooded seal (Cystophora cristata) and the harbor seal (Phoca vitulina). Anat Rec 299:370-378. doi: 10.1002/ar.23298
Hoff MLM, Fabrizius A, Folkow LP, Burmester T (2016) An atypical distribution of lactate dehydrogenase isoenzymes in the hooded seal (Cystophora cristata) brain may reflect a biochemical adaptation to diving. J Comp Physiol B 186:373-386. doi: 10.1007/s00360-015-0956-y.
Blix AS (2016) Adaptations to polar life in mammals and birds. J Exp Biol 219: 1093-1105 doi:10.1242/jeb.120477
Tyler NJC, Jacobsen K-O, Blix AS (2016) Behavioural responses of moulting barnacle geese to experimental helicopter noise and a predator. Can J Wildl Biol Management 5:10-23
Salgado-Flores A, Hagen LH, Ishaq SL, Zamanzadeh M, Wright ADG, Pope PB, Sundset MA (2016) Rumen and cecum microbiomes in reindeer (Rangifer tarandus tarandus) are changed in response to a lichen diet and may affect enteric methane emissions. PLoS ONE 11(5): e0155213 doi:10.1371/journal.pone.0155213
Tyler N, Stokkan K-A, Nellemann C, Vistnes AI, Hogg CR (2016) Ultrafiolett synsevne og unnvikelse av kraftledninger hos rein. Villreinen 31:78-82
Blix AS, Kuttner S, Messelt EB (2016) Ascending aorta of hooded seals with particular emphasis on its vasa vasorum. Am J Physiol Regul Integr Comp Physiol 311:R144-R149.
Tyler NJC, Gregorini P, Forchhammer MC, Stokkan K-A, van Oort BEH, Hazlerigg DG (2016) Behavioral timing without clockwork: photoperiod-dependent trade-off between predation hazard and energy balance in an arctic ungulate. J Biol Rhythms 31:522-533 doi:10.1177/0748730416662778
Dardente H, Wyse CA, Lincoln GA, Wagner GC, Hazlerigg DG (2016) Effects of photoperiod extension on clock gene and neuropeptide RNA expression in the SCN of the Soay sheep. PLoS ONE 11(7): e0159201 doi:10.1371/journal.pone.0159201
Salgado-Flores A, Bockwoldt M, Hagen LH, Pope PB, Sundset MA (2016) First insight into the faecal microbiota of the high Arctic muskoxen (Ovibos moschatus). Microbial Genom doi: 10.1099/mgen.0.000066
Lorgen M, Jorgensen EH, Jordan WC, Martin SAM, Hazlerigg DG (2016) NFAT5 genes are part of the osmotic regulatory system in Atlantic salmon (Salmo salar). Mar Genomics, http://dx.doi.org/10.1016/j.margen.2016.06.004
Magnanelli E, Wilhelmsen Ø, Acquarone M, Folkow LP, Kjelstrup S (2016) The nasal geometry of the reindeer gives energy-efficient respiration. J Non-Equil Thermodyn 42:59-78, DOI: 10.1515/jnet-2016-0038
Fabrizius A, Hoff MLM, Engler G, Folkow LP, Burmester T (2016) When the brain goes diving: transcriptome analysis reveals a reduces aerobic energy metabolism and increased stress proteins in the seal brain. BMC Genomics 17:583 doi:10.1186/s12864-016-2892-y
Geiseler S, Larson J, Folkow LP (2016) Synaptic transmission despite severe hypoxia in hippocampal slices of the deep-diving hooded seal. Neurosci 334: 39-46. http://dx.doi.org/10.1016/j.neuroscience.2016.07.034
Gurarie E, Bengtson JL, Bester MN, Blix AS, Cameron M, Bornemann H, Nordøy ES, Plötz J, Steinhage D, Boveng P (2016) Distribution, density and abundance of Antarctic ice seals off Queen Maud Land and the eastern Weddell Sea. Polar Biol doi:10.1007/s00300-016-2029-4
Pasquali V, Gualtieri R, D’Alessandro G, Granberg M, Hazlerigg D, Cagnetti M, Leccese F (2016) Monitoring and analyzing of circadian and ultradian locomotor activity based on Raspberry-Pi. Electronics 5:58 doi:10.3390/electronics5030058
Schots PC, Bue ME, Nordøy ES (2016) Hooded seal (Cystophora cristata) pups ingest snow and seawater during their post-weaning fast. J Comp Physiol B 187: 493-502 DOI: 10.1007/s00360-016-1048-3

2015

Ishaq SL, Sundset MA, Crouse J, Wright ADG (2015) High-throughput DNA sequencing of the moose rumen from different geographical locations reveals a core ruminal methanogenic archaeal diversity and a differential ciliate protozoal diversity. Microbial Genomics DOI: 10.1099/mgen.0.000034
Blix AS (2015) Om en glemt slede fra en glemt ekspedisjon. Det Norske Videnskaps-Akademi. Årbok 2014. Det Norske Videnskapsakademi, Oslo, pp. 383-386
Blix A (2015) Richard Maitland Laws (1926-2014), CBE, FRS, ScD. Polar Res 34: 30182 http://dx.doi.org/10.3402/polar.v34.30182 (obituary)
Blix AS, Kvadsheim PH, Kholodova MV, Sokolov V, Messelt EB, Tyler NJC (2015) Superb winter fur insulation in the small Siberian musk deer (Moschus moschiferus). Rangifer 35: 53-60.
Stevenson TJ, Visser ME, Arnold W, Barrett P, Biello S, Dawson A, Denlinger DL, Dominoni D, Ebling FJ, Elton S, Evans N, Ferguson HM, Foster RG, Hau M, Haydon DT, Hazlerigg DG, Heideman P, Hopcraft JGC, Jonsson NN, Kronfeld-Schor N, Kumar V, Lincoln GA, MacLeod R, Martin SAM, Martinez-Bakker M, Nelson RJ, Reed T, Robinson JE, Rock D, Schwartz WJ, Steffan-Dewenter I, Tauber E, Thackeray SJ, Umstatter C, Yoshimura T, Helm B (2015) Disrupted seasonal biology impacts health, food security and ecosystems. Proc R Soc B 282: 20151453 http://dx.doi.org/10.1098/rspb.2015.1453
Striberny A, Ravuri CS, Jobling M, Jørgensen EH (2015) Seasonal differences in relative gene expression of putative central appetite regulators in Arctic charr (Salvelinus alpinus) do not reflect its annual feeding cycle. PLoS ONE 10(9): e0138857, p.1-13http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0138857
Hogg C, Neveu M, Folkow L, Stokkan K-A, Kam JH, Douglas RH, Jeffery G (2015) The eyes of the deep diving hooded seal (Cystophora cristata) enhance sensitivity to ultraviolet light. Biol Open 4(7): 812-818 doi:10.1242/bio.011304
Hazlerigg D, Simonneaux V (2015) Seasonal regulation of reproduction in mammals. In (eds: T. Plant & A. Zeleznik): Knobil and Neill’s Physiology of Reproduction (4th edition), ch. 34, pp. 1575-1604, Elsevier http://dx.doi.org/10.1016/B978-0-12-397175-3.00034-X
Geiseler SJ, Ludvigsen S, Folkow LP (2015) KATP-channels play a minor role in the protective hypoxic shut-down of cerebellar activity in eider ducks (Somateria mollissima). Neuroscience 284: 751-758
Lorgen M, Casadei E, Król E, Douglas A, Birnie MJ, Ebbesson LOE, Nilsen TO, Jordan WC, Jørgensen EH, Dardentes H, Hazlerigg DG, Martin SAM (2015) Functional divergence of type 2 deiodinase paralogs in the Atlantic salmon. Current Biology 25: 936–941 http://dx.doi.org/10.1016/j.cub.2015.01.074

2014

Falcón J, Coon SL, Besseau L, Cazaméa-Catalan D, Fuentès M, Magnanou E, Paulin C-H, Boeuf G, Sauzet S, Jørgensen EH, Mazan S, Wolf YI, Koonin EV, Steinbach PJ, Hyodo S, Klein DC (2014) Drastic neofunctionalization associated with evolution of the timezyme AANAT 500 Mya. Proc Natl Acad Sci USA 111:314-319.
Dardentes H, Hazlerigg DG, Ebling FJP (2014) Thyroid hormone and seasonal rhythmicity. Front Endocrinol 5: Article 19.
Glad T, Barboza P, Mackie RI, Wright A-DG, Brusetti L, Mathiesen SD, Sundset MA (2014) Dietary supplementation of usnic acid, an antimicrobial compound in lichens, does not affect rumen bacterial diversity or density in reindeer. Curr Microbiol 68:724-728 DOI 10.1007/s00284-014-0534-7.
Tyler N, Stokkan K-A, Hogg C, Nellemann C, Vistnes A-I, Jeffery G (2014) Ultraviolet vision and avoidance of power lines in birds and mammals. Conserv Biol 28:630-631 DOI: 10.1111/cobi.12262.
Bae S-E, Wright IK, Wyse C, Samson-Desvignes N, Le Blanc P, Laroche S, Hazlerigg DG, Johnston JD (2014) Regulation of pituitary MT1 melatonin receptor expression by gonadotrophin-releasing hormone (GnRH) and early growth response factor-1 (Egr-1): In vivo and in vitro studies. PLoS ONE 9(3): e90056.
Larson J, Drew KL, Folkow LP, Milton SL, Park TJ (2014) No oxygen? No problem! Intrinsic brain tolerance to hypoxia in vertebrates. J Exp Biol 217:1024-1039.
Acquarone M, Born EW, Griffiths D, Knutsen LØ, Wiig Ø, Gjertz I (2014) Evaluation of etorphine reversed by diprenorphine for the immobilization of free-ranging Atlantic walrus (Odobenus rosmarus rosmarus L). NAMMCO Sci Publ 9:345-360-370 (DOI: http://dx.doi.org/10.7557/3.2944)
Griffiths D, Born EW, Acquarone M (2014) Prolonged chemical restraint of walrus (Odobenus rosmarus) with etorphine supplemented with medetomidine. NAMMCO Sci Publ 9:361- (DOI: http://dx.doi.org/10.7557/3.3015)
Blanchet M-A, Acquarone M, Siebert S (2014) Arktische Robben und Eisbären – Auswirkungen von Klimaerwärmung und Ressourcennutzung. Ch. 3.9: In (eds: J.L. Lozán, H. Graßl, D. Piepenburg, D. Notz) Warnsignal Klima: Die Polarregionen. Verlag Wissenschaftligche Auswertungen (ISBN 3980966860), pp. 183-191.
Philip AM, Jørgensen EH, Maule AG, Vijayan MM (2014) Tissue-specific molecular immune response to lipopolysaccharide challenge in emaciated anadromous Arctic charr. Dev Comp Immunol 45:133-140.
Josefsen T, Sundset MA (2014) Fôring og fôringsbetingede sjukdommer hos rein. Norsk Veterinærtidsskrift 126:162-171.
Rose KA, Tickle PG, Lees JJ, Stokkan K-A, Codd JR (2014) Neither season nor sex affects the cost of terrestrial locomotion in a circumpolar diving duck: the common eider (Somateria mollissima). Polar Biol 37:879-889.
Lees JJ, Folkow LP, Nudds RL, Codd JR (2014) The effect of season and sex upon the morphology and material properties of keratin in the Svalbard rock ptarmigan (Lagopus muta hyperborea). J Thermal Biol 44: 126–130 http://dx.doi.org/10.1016/j.jtherbio.2014.01.002
Lees JJ, Folkow LP, Codd JR, Nudds RL (2014) Seasonal differences in jump performance in the Svalbard rock ptarmigan (Lagopus muta hyperborea). Biology Open 3(4):233-239 https://doi.org/10.1242/bio.20147930
Tyler NJC, Jeffery G, Hogg CR, Stokkan K-A (2014) Ultraviolet vision may enhance the ability of reindeer to discriminate plants in snow. Arctic 67:159-166
Czech-Damal NU, Geiseler SJ, Hoff MLM, Schliep R, Ramirez J-M, Folkow L, Burmester T (2014) The role of glycogen, glucose and lactate in neuronal activity during hypoxia in the hooded seal (Cystophora cristata) brain. Neuroscience 275: 374-383 http://dx.doi.org/10.1016/j.neuroscience.2014.06.024
Sáenz de Miera C, Monecke S, Bartzen-Sprauer J, Laran-Chich M-P, Pévet P, Hazlerigg DG, Simmoneaux V (2014) A circannual clock drives expression of genes central for seasonal reproduction. Current Biology 24: 1500-1506
Jørgensen EH, Johnsen HK (2014) Rhythmic life of the Arctic charr: Adaptations to life on the edge. Marine Genomics 14: 71-81
Vilches N, Spichiger C, Mendez N, Abarzua-Catalan L, Galdames HA, Hazlerigg DG, Richter HG, Torres-Farafn C (2014) Gestational chronodisruption impairs hippocampal expression of NMDA receptor subunits Grin1b/Grin3a and spatial memory in the adult offspring. PLoS ONE 9(3): e91313
Hazlerigg D (2014) Disrupted clocks make us fat: it ain’t necessarily so. Exp Physiol 99.9: 1179 (DOI: 10.1113/expphysiol.2014.081513)
Lincoln G, Hazlerigg D (2014) Stem cell regulation of circannual rhythms. In (eds. H. Numata, B. Helm): Annual, Lunar, and Tidal Clocks, Ch. 12, Springer Japan, pp. 227-245 DOI 10.1007/978-4-431-55261-1_12

2013

Blix AS, Folkow LP, Nordøy ES (2013) Changing the look on seals from pole to pole with satellite technology. In (eds: C. Verde and G. di Prisco): Adaptation and Evolution in Marine Environments, Volume 2, From Pole to Pole, Ch. 7, Springer-Verlag, Berlin Heidelberg. Doi: 10.1007/978-3-642-27349-0_7.
Sundset MA, Glad T, Nielsen K (2013) Terrestrial vertebrate animal metagenomics, non-domesticated Ursidae, bears. In (ed: K.E. Nelson): Encyclopedia of Metagenomics pp 1-5, http://link.springer.com/referenceworkentry/10.1007%2F978-1-4614-6418-1_107-3
Sundset MA, Salgado-Flores A, Wright A-DG, Pope PB (2013) The reindeer rumen microbiome. In (ed: K.E. Nelson): Encyclopedia of Metagenomics, pp 1-12, http://link.springer.com/referenceworkentry/10.1007/978-1-4614-6418-1_664-1
Lees J, Folkow L, Stokkan K-A, Codd J (2013) The metabolic cost of incline locomotion in the Svalbard rock ptarmigan (Lagopus muta hyperborea): the effects of incline grade and seasonal fluctuations in body mass. J Exp Biol 216:1355-1363.
Geiseler SJ, Blix AS, Burns JM, Folkow LP (2013) Rapid postnatal development of myoglobin from large liver iron stores in hooded seals. J Exp Biol 216:1793-1798.
Cazaméa-Catalan D, Magnanou E, Helland R, Besseau L, Boeuf G, Falcón J, Jørgensen EH (2013) Unique arylalkylamine N-acetyltransferase-2 polymorphism in salmonids and profound variations in thermal stability and catalytic efficiency conferred by two residues. J Exp Biol 216:1938-1948.
Jørgensen EH, Martinsen M, Strøm V, Hansen KER, Ravuri CS, Gong N, Jobling M (2013) Long-term fasting in the anadromous Arctic charr is associated with downregulation of metabolic enzyme activity and upregulation of leptin A1 and SOCS expression in the liver. J Exp Biol 216: 3222-3230.
Helgason LB, Wolkers H, Fuglei E, Ahlstrøm Ø, Muir D, Jørgensen EH (2013) Seasonal emaciation causes tissue redistribution and an increased potential for toxicity of lipophilic pollutants in farmed arctic fox (Vulpes lagopus). Env Tox Chem 32: 1784-1792.
Præsteng KE, Pope PB, Cann IKO, Mackie RI, Mathiesen SD, Folkow LP, Eijsink VGH, Sundset MA. (2013) Probiotic dosing of Ruminococcus flavevaciens affects rumen microbiome structure and function in reindeer. Microb Ecol 66: 840-849 DOI 10.1007/s00248-013-0279-z
Blix AS, Walløe L, Messelt EB (2013) On how whales avoid decompression sickness and why they sometimes strand. J Exp Biol 216: 3385-3387.
Stokkan KA, Folkow L, Dukes J, Neveu M, Hogg C, Siefken S, Dakin S, Jeffery G. (2013) Shifting mirrors: adaptive changes in retinal reflections to winter darkness in Arctic reindeer. Proc R Soc B 280: 20132451

2012

Tryland M, Nymo IH, Nielsen O, Nordøy ES, Kovacs KM, Krafft BA, Thoresen SI, Åsbakk K, Osterrieder K, Roth SJ, Lydersen C, Godfroid J, Blix AS (2012) Serum chemistry and antibodies against pathogens in Antarctic fur seals, Weddell seals, crabeater seals, and Ross seals. J Wildl Dis 48:632-645
Pope PB, Mackenzie AK, Gregor I, Smith W, Sundset MA, McHardy AC, Morrison M, Eijsink VGH (2012) Metagenomics of the Svalbard reindeer rumen microbiome reveals abundance of polysaccharide utilization loci. PLoS ONE 7(6):e38571 1-10
Lees JJ, Nudds RL, Folkow LP, Stokkan K-A, Codd JR (2012) Understanding sex differences in the cost of terrestrial locomotion. Proc R Soc B 279:826-832
Lees JJ, Stokkan K-A, Folkow LP, Codd JR (2012) Locomotor development in the Svalbard rock ptarmigan (Lagopus muta hyperborea). Polar Biol 35:867-874
Blix AS (2012) Roald Amundsen: Forsker eller grobian? Nordisk Tidskrift 88:1-22
Frøiland E, Jobling M, Björnsson BT, Kling P, Ravuri CS, Jørgensen EH (2012) Seasonal appetite regulation in the anadromous Arctic charr: Evidence for a role of adiposity in the regulation of appetite but not for leptin in signalling adiposity. Gen Comp Endocrinol 178:330-337
Schneuer M, Flachsbarth S, Czech-Damal NU, Folkow LP, Siebert U, Burmester T (2012) Neuroglobin of seals and whales: Evidence for a divergent role in the diving brain. Neuroscience 223:35-44
Blix AS, Ness J, Lian H, Callaghan TV (2012) Experimental reduction of food quality is not compensated with increased food intake in high-arctic muskoxen (Ovibus moschatus). British J Nutr 108:1337-1340
Hallanger IG, Jørgensen EH, Fuglei E, Ahlstrøm Ø, Muir DCG, Jenssen BM (2012) Dietary contaminant exposure affects plasma testosterone, but not thyroid hormones, vitamin A, and vitamin E, in male juvenile arctic foxes (Vulpes lagopus). J Tox Envir Health Part A 75:1298-1313
Southwell C, Bengtson J, Bester M, Blix AS, Bornemann H, Boveng P, Cameron M, Forcada J, Laake J, Nordøy E, Plötz J, Rogers T, Southwell D, Steinhage D, Stewart BS, Trathan P (2012) A review of data on abundance, trends in the abundance, habitat use and diet of ice-breeding seals in the southern ocean. CCAMLR Science 18:48-73
Ince C, van Kuijen A-M, Milstein DMJ, Yürük K, Folkow LP, Fokkens WJ, Blix AS (2012) Why Rudolph’s nose is red: observational study. BMJ 2012;345:e8311, pp 1-6
Cazaméa-Catalan D, Magnanou E, Helland R, Vanegas G, Besseau L, Boeuf G, Paulin CH, Jørgensen EH, Falcón J (2012) Functional diversity of Teleost arylalkylamine N-acetyltransferase-2: is the timezyme evolution driven by habitat temperature? Mol Ecol 21:5027-5041

2011

Wareing K, Tickle PG, Stokkan K-A, Codd JR, Sellers WI (2011) The musculoskeletal anatomy of the reindeer (Rangifer tarandus): fore- and hindlimb. Polar Biol 10:1571-1578
Wiseman S, Jørgensen EH, Maule AG, Vijayan MM (2011) Contaminant loading in remote Arctic lakes affects cellular stress-related proteins expression in feral charr. Polar Biol 34:933-937
Blix AS, Walløe L, Folkow LP (2011) Regulation of brain temperature in winter-acclimatized reindeer under heat stress. J Exp Biol 214: 3850-3856
Blix AS (2011) The venous system of seals, with new ideas on the significance of the extradural intravertebral vein. J Exp Biol 214: 3507-3510
Nudds RL, Folkow LP, Lees JJ, Tickle PG, Stokkan K-A, Codd JR (2011) Evidence for energy savings from aerial running in Svalbard rock ptarmigan (Lagopus muta hyperborea). Proc R Soc B 278:2654-2661
Ramirez J-M, Folkow LP, Ludvigsen S, Ramirez PN, Blix AS (2011) Slow intrinsic oscillations in thick neocortical slices of hypoxia tolerant deep diving seals. Neuroscience 177:35-42
Hogg C, Neveu M, Stokkan K-A, Folkow L, Cottril P, Douglas R, Hunt D, Jeffery G (2011) Arctic reindeer extend their visual range into the ultraviolet. J Exp Biol 214:2014-2019
Blix AS, Ness J, Lian H (2011) Experience from 40 years of muskox (Ovibos moschatus) farming in Norway. Rangifer 31:1-6
Blix AS, Lian H, Ness J (2011) Immobilization of muskoxen (Ovibos moschatus) with etorphine and xylazine. Acta Vet Scand 53:42
Strand JET, Davidsen JG, Jørgensen EH, Rikardsen AH (2011) Seaward migrating Atlantic salmon smolt with low levels of gill Na+, K+ -ATPase activity; is sea entry delayed? Environ Biol Fish 90:317-321
Præsteng KE, Mackie RI, Cann IKO, Mathiesen SD, Sundset MA (2011) Development of a signature probe targeting the 16S-23S rRNA internal transcribed spacer of a ruminal Ruminococcus flavefaciens isolate from reindeer. Beneficial Microbes 2:47-55
Præsteng KE, Mackie RI, Cann IKO, Mathiesen SD, Sundset MA (2011) Variations in the16S-23S rRNA internal transcribed spacer of fibrolytic Butyriovibrio isolates from the reindeer rumen. Can J Microbiol 57:617-622

2010

Lu W, Meng QJ, Tyler N, Stokkan K-A, Loudon A (2010) A circadian clock is not required in an Arctic mammal. Curr Biol 20:533-537
Folkow LP, Nordøy ES, Blix AS (2010) Remarkable development of diving performance and migrations of hooded seals (Cystophora cristata) during their first year of life. Polar Biol 33:433-441.
Lees JJ, Nudds RL, Stokkan K-A, Folkow LP, Codd JR (2010) Reduced metabolic cost of locomotion in winter adapted Svalbard rock ptarmigan (Lagopus muta hyperborea). PLoS ONE 5(11):e15490 1-8
Aarseth JJ, Frøiland E, Jørgensen EH (2010) Melatonin implantation during spring and summer does not affect the seasonal rhythm of feeding in anadromous Arctic charr (Salvelinus alpinus). Polar Biol 33:379-388
Letcher RJ, Bustnes JO, Dietz R, Jenssen BM, Jørgensen EH, Sonne C, Verreault J, Vijayan MM, Gabrielsen GW (2010) Exposure and effects assessment of persistent organohalogen contaminants in arctic wildlife and fish. Sci Tot Envir 408:2995-3043
Frøiland E, Murashita K, Jørgensen EH, Kurokawa T (2010) Leptin and ghrelin in anadromous Arctic charr: Cloning and change in expressions during a seasonal feeding cycle. Gen Comp Endocrinol 165:136-143
Glad T, Kristiansen VF, Nielsen KM, Brusetti L, Wright A-DG, Sundset MA (2010) Ecological characterisation of the colonic microbiota in arctic and sub-arctic seals. Microb Ecol 60:320-330
Glad T, Bernhardsen P, Nielsen KM, Brusetti L, Andersen M, Aars J, Sundset MA Bacterial diversity in faeces from polar bear (Ursus maritimus) in arctic Svalbard. BMC Microbiology 10:10
Barboza PS, Bennett A, Lignot J-H, Mackie RI, McWhorter TJ, Secor SM, Skovgaard N, Sundset MA, Wang T (2010) Digestive challenges for vertebrate animals: microbial diversity, cardiorespiratory coupling, and dietary specialization. Physiol Biochem Zool 83:764-774
Kvadsheim PH, Sevaldsen EM, Folkow LP, Blix AS (2010) Behavioural and physiological responses of hooded seals (Cystophora cristata) to 1 to 7 kHz sonar signals. Aquat Mamm 36:239-247
Blix AS, Walløe L, Messelt EB, Folkow LP (2010) Selective brain cooling and its vascular basis in diving seals. J Exp Biol 213:2610-2616
Sundset MA, Barboza PS, Green TK, Folkow LP, Blix AS, Mathiesen SD (2010) Microbial degradation of usnic acid in the reindeer rumen. Naturwissenschaften 97:273-278
Folkow LP, Blix AS (2010) Air breathers under water: diving mammals and birds. In: Respiratory Physiology of Vertebrates. Life with and without oxygen (ed: Nilsson GE). Ch. 7, pp 222-264, Cambridge University Press, Cambridge
Schultner J, Welcker J, Speakman JR, Nordøy ES, Gabrielsen GW (2010) Application of the two-sample doubly labelled water method alters behaviour and affects estimates of energy expenditure in black-legged kittiwakes J Exp Biol 213:2958-2966

2009

Ludvigsen S, Folkow LP (2009) Differences in in vitro cerebellar neuronal responses to hypoxia in eider ducks, chicken and rats. J Comp Physiol A 195:1021-1030
Lestyk KC, Folkow LP, Blix AS, Hammill MO, Burns JM (2009) Development of myoglobin concentration and acid buffering capacity in harp (Pagophilus groenlandicus) and hooded (Cystophora cristata) seals from birth to maturity. J Comp Physiol B 179:985-996
Sundset MA, Edwards JE, Cheng YF, Senosiain RS, Fraile MN, Northwood KS, Præsteng KE, Glad T, Mathiesen SD, Wright A-DG (2009) Molecular diversity of the rumen microbiome of Norwegian reindeer on natural summer pasture. Microb Ecol 57:335-348
Suzuki I, Naito Y, Folkow LP, Miyazaki N, Blix AS (2009) Validation of a device for accurate timing of feeding events in marine animals. Polar Biol 32:667-671
Mitz SA, Reuss S, Folkow LP, Blix AS, Ramirez J-R, Hankeln T, Burmester T (2009) When the brain goes diving: glial oxidative metabolism may confer hypoxia tolerance to the seal brain. Neurosci 163:552-560

2008

Southwell CJ, Paxton CGM, Borchers DL, Boveng P, Nordøy ES, Blix AS, De La Mare WK (2008) Estimating population status under conditions of uncertainty: the Ross seal in East Antarctica. Antarctic Sci 20:123-133

Sundset MA, Kohn A, Mathiesen SD, Præsteng K (2008) Eubacterium rangiferina, a novel usnic acid resistant bacterium from the reindeer rumen. Naturwissenschaften 95:741-749

Josefsen TD, Mørk T, Christensen E, Lian H, Folkow L (2008) Aspergillose hos ærfuglunger i kunstig oppdrett. Norsk Veterinærtidsskrift 120:164 165

Nordøy ES, Folkow LP, Potelov V, Prischemikhin V, Blix AS (2008) Seasonal distribution and dive behaviour of harp seals (Pagophilus groenlandicus) of the White Sea – Barents Sea stock. Polar Biol. 31:1119-1135.

Folkow LP, Ramirez J-M, Ludvigsen S, Ramirez N, Blix AS (2008) Remarkable neuronal hypoxia tolerance in the deep-diving adult hooded seal (Cystophora cristata). Neurosci Lett 446:147-150

Folkow LP (2008) Coping with oxygen shortage – physiological adaptations to hypoxia in the deep-diving hooded seal. Acta Physiol 193 (Suppl. 664):74

Silverin B, Wingfield J, Stokkan, K-A, Massa R, Järvinen A, Andersson N-Å, Lambrechts M, Sorace A, Blomqvist D (2008) Ambient temperature effects on photo induced gonadal cycles and hormonal secretion patterns in great tits from three different breeding latitudes. Horm Behav 54:60-68

Zoetendal EG, Smith AH, Sundset MA, Mackie RI (2008) The BaeSR two-component regulatory system mediates resistance to condensed tannins in Escherichia coli. Appl Envir Microbiol 74:535-539

2007

Blix AS (2007) Minnetale over direktør dr.philos. Tore Gjelsvik. Det Norske Videnskaps-Akademi. Årbok 2006. Det Norske Videnskapsakademi, Oslo, pp. 114-122

Blix AS and Nordøy ES (2007) Ross seal (Ommatophoca rossii) annual distribution, diving behaviour, breeding and moulting, off Queen Maud Land, Antarctica. Polar Biol 30:1449-1458

Burns JM, Lestyk KC, Folkow LP, Hammil MO and Blix AS (2007) Size and distribution of oxygen stores in harp and hooded seals from birth to maturity. J Comp Physiol B 177:687-700

How OJ and Nordøy ES (2007) Seawater drinking restores water balance in dehydrated harp seals. J Comp Physiol B, 177:535-542

van Oort BEH, Tyler NJC, Gerkema MP, Folkow LP and Stokkan K-A (2007) Where clocks are redundant: weak circadian mechanisms in reindeer living under polar photic conditions. Naturwissenschaften 94:183-194

Ramirez J-M, Folkow LP and Blix AS (2007) Hypoxia tolerance in mammals and birds: From the wilderness to the clinic. Ann Rev Physiol 69:113-143

Tyler NJC, Sundset MA, Strøm KB, Sara MN, Reinert E, Oskal N, Nellemann C, McCarthy JJ, Mathiesen SD, Martello ML, Magga OH, Hovelsrud GK, Hanssen-Bauer I, Eira NI and Corell RW (2007) Saami reindeer pastoralism under climate change: Applying a generalized framework for vulnerability studies to a sub-arctic-social-ecological system. Glob Envir Change 17:196-206

Stokkan K-A, van Oort BEH, Tyler NJC and Loudon, ASI (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 photoperiod. J Pineal Res 43:289-293

Sundset MA, Cann IKO, Mathiesen SD, Præsteng KE and Mackie RI (2007) Novel rumen bacterial diversity in two geographically separated sub-species of reindeer. Microbial Ecol 54:424-438

2006

Fuglesteg, B.N., Haga ØE, Folkow LP, Fuglei E, Blix AS. 2006. Seasonal variations in basal metabolic rate, lower critical temperature and responses to temporary starvation in the arctic fox (Alopex lagopus) from Svalbard. Polar Biol 29: 308-319

2005

Van Oort BEH, Tyler NJC, Gerkema MP, Folkow L, Blix AS and Stokkan KA (2005) Circadian organization in reindeer. Nature 438:1095-1096

Mathiesen SD, Mackie RI, Aschfalk A, Ringø E and Sundset MA (2005) Microbial ecology of the gastrointestinal tract in reindeer – changes through season. In: Microbial Ecology of the Growing Animal; Biology of the Growing Animals Volume III. W Holzapfel and P Naughton (eds) pp 73-100. Elsevier Press, Oxford

Kvadsheim PH, Folkow LP and Blix AS (2005) Inhibition of shivering in hypothermic seals during diving. Am J Physiol 289:R326-R331

Tryland M, Klein J, Nordøy ES and Blix AS (2005) Isolation and partial characterization of parapoxvirus isolated from a skin lesion of a Weddell seal. Virus Res 108:83-87

2004

Henden T, Aasum E, Folkow L, Mjøs OD, Lathrop DA and Larsen TS (2004) Endogenous glycogen prevents Ca2+ overload and hypercontracture in harp seal myocardial cells during simulated ischemia. J Mol Cell Cardiol 37:43-50

Stokkan KA, Van Oort BEH and Tyler NJC (2004) Biological rhythms in reindeer. J Anim Feed Sci 13:715-716

Van Oort BEH, Tyler NJC, Storeheier PV and Stokkan KA (2004) The performance and validation of data logger for long-term determination of activity in free-ranging reindeer, Rangifer tarandus L. App Anim Behav Sci 89:299-308

Vester HI, Folkow LP and Blix AS (2004) Click sounds produced by cod (Gadus morhua). J Acoust Soc Am 115:914-919

Folkow LP, Nordøy ES and Blix AS (2004) Distribution and diving behaviour of harp seals (Phagophilus groenlandicus) from the Greenland Sea stock. Polar Biol 27:281-298

Stokkan K-A and Aarseth JJ (2004) Melatonin reduces noradrenaline-induced vasoconstriction in the uterine artery of pregnant hooded seals (Cystophora cristata). Eur J Physiol 447:405-407

2003

Mackie RI, Aminov RI, Hu W, Klieve AV, Ouwerkerk D, Sundset MA and Kamagata Y (2003) Ecology of uncultivated osscillospira species in the rumen of cattle, sheep, and reindeer as assessed by microscopy and molecular approaches. Appl Environ Microbiol 69:6808-6815

Aarseth JJ and Stokkan K-A (2003) Quantitative differences in the pineal ultrastructure of perinatal and adult harp (Phoca groenlandica) and hooded seals (Chystophora cristata). J Pineal Res 35:188-195

Aarseth JJ, Van’t Hof TJ and Stokkan K-A (2003) Melatonin is rhythmic in newborn seals exposed to continuous light. J Comp Physiol B 173:37-42

Storeheier PV, Sehested J, Diernæs L, Sundset MA and Mathiesen SD (2003) Effects of seasonal changes in food quality and food intake on the transport of sodium and butyrate across ruminal epithelium of reindeer. J Comp Physiol B 173: 391-399

Storeheier PV, Mathiesen SD and Sundset MA (2003) Estimating faecal output in reindeer during winter. Livestock Prod Sci 84:23-30

Storeheier PV, Sundset MA, Van Oort BEH, and Mathiesen SDM (2003) Food intake of free-ranging reindeer in winter. J Agric Sci 141:93-101

2002

Aschfalk A, Folkow L, Rud H, and Denzin N (2002) Apparent seroprevalence of salmonella spp. in harp seals in the Greenland Sea as determined by enzyme-linked immunosorbent assay. Vet Res Comm 26:523-530

Storeheier PV, Mathiesen SD, Tyler NJC, Schjelderup I and Olsen MA (2002) Utilization of nitrogen- and mineral-rich vascular forage plants by reindeer in winter. J Agric Sci 139:151-160

Kvadsheim PH and Aarseth JJ (2002) Thermal function of phocid seal fur. Mar Mamm Sci 18:952-962

Storeheier PV, Mathiesen SD, Tyler NJC and Olsen MA (2002) Nutritive value of terricolous lichens for reindeer in winter. Lichenologist 34:247-257

Nordøy ES and Thoresen SI (2002) Reference values for serum biochemical parameters in free-ranging harp seals. Vet Clin Pathol 31:98-105

Olsen MA, Myklebust R, Kaino T, Elbrønd VS and Mathiesen SD (2002) The gastrointestinal tract of Adelie penguins - morphology and function. Polar Biol 25:641-649

Lydersen C, Wolkers H, Severinsen T, Kleivane L, Nordøy ES and Skaare JU (2002) Blood is a poor substrate foor monitoring pollution burdens in phocid seals. Sci Total Environ 292:193-203

Davidson AJ, Stokkan K-A, Yamazaki S and Menaker M (2002) Food-anticipatory activity and liver per1-luc activity in diabetic transgenic rats. Physiol Behav 76:21-26

Reierth E and Stokkan K-A (2002) Biological Rhythms in Arctic Animals. In: “Biological Rhythms”. V Kumar (ed) pp 216-223. Narosa Publ House, New Delhi

2001

Heide-Jørgensen MP, Nordøy ES, Øien N, Folkow L, Kleivane L, Blix AS, Jensen MV and Laidre KL (2001) Satellite tracking of minke whales (Balaenoptera acutorostrata) off the coast of northern Norway. J Cetacean Res Manage 3:175-178

Fyhn M, Gabrielsen GW, Nordøy ES, Moe B, Langseth I and Bech C (2001) Individual variation in field metabolic rate of Kittiwakes (Rissa Tridactyla) during the chick-rearing period. Physiol Biochem Zool 74:343-355

Eilertsen SM, Schjelderup I, Dryden GMcL and Mathiesen SD (2001) High protein pastures in spring - effects on body composition in reindeer. Rangifer 21:13-19

Aarseth JJ, Nordøy ES and Stokkan KA (2001) Melatonin potentiates the vasoconstrictive effect of noradrenaline in renal artery from newborn hooded seals (Cystophora cristata) and harp seals (Phoca groenlandica). J Comp Physiol B 171:491-496

Stokkan K-A, Yamazaki S, Tei H, Sakaki Y and Menaker M (2001) Entrainment of the circadian clock in the liver by feeding. Science 291:490-493

Storeheier PV and Nordøy ES (2001) Physiological effects of seawater intake in adult harp seals in early phase I of fasting. Comp Biochem Physiol A 128:307-315

2000

Skalstad I and Nordøy ES (2000) Experimental evidence of seawater drinking in juvenile hooded (Cystophora cristata) and harp seals (Phoca groenlandica). J Comp Physiol B 170:395-401

Folkow LP, Haug T, Nilssen KT and Nordøy ES (2000) Estimated food consumption of minke whales Balaenoptera acutorostrata in Northeast Atlantic waters in 1992-1995. NAMMCO Sci Pub 2:65-80

Nilssen KT, Pedersen O-P, Folkow LP and Haug T (2000) Food consumption estimates of Barents Sea harp seals. NAMMCO Sci Pub 2:9-27

Boily P, Kvadsheim PH and Folkow LP (2000) Cutaneous heat flux models do not reliably predict metabolic rates of marine mammals. J theor Biol 207:317-323

Van Oort BEH, Tyler NJC, Reiert E and Stokkan K-A (2000) Biological rhythms in Arctic vertebrates. Rangifer 20:99-112

Stenfors L-E, Sade J, Helleström S, Anniko M and Folkow LP (2000) Exostoses and cavernous venous formation in the external auditory canal of the hooded seal as a functional physiological organ. Acta Otolaryngol 120:940-943

Mesteig K, Tyler NJC and Blix AS (2000) Seasonal changes in heart rate and food intake in reindeer (Rangifer tarandus tarandus). Acta Physiol Scand 170:145-151

Odasz-Albrigtsen AM, Tømmervik H and Murphy P (2000) Decreased photosynthetic efficiency in plant species exposed to multiple airborne pollutants along the Russian-Norwegian border. Can J Bot 78:1021-1033

Aas-Hansen Ø, Folkow LP and Blix AS (2000) Panting in reindeer (Rangifer tarandus). Am J Physiol 279:R1190-R1195

Blix AS, Folkow LP and Sørlie DG (2000) Simulations of the effect of currently used grenade harpoons for the killing of whales using a pig-model. Acta Vet Scand 41:237-242

Mathiesen SD, Vader MA, Rædergård VB, Sørmo W, Haga ØE, Tyler NJC and Hofman RR (2000) Functional anatomy of the omasum in high arctic Svalbard reindeer (Rangifer tarandus platyrhynchus) and Norwegian reindeer (Rangifer tarandus tarandus). Acta Vet Scand. 41:25-40

Mathiesen SD, Sørmo W, Haga ØE, Norberg HJ, Utsi THA, Mathiesen SD and Tyler NJC (2000) The oral anatomy of Arctic ruminants: coping with seasonal changes. J Zool (Lond) 251:119-128

Mathiesen SD, Haga ØE, Kaino T, Tyler NJC (2000) Diet composition, rumen papillation and maintenance of carcass mass in female Norwegian reindeer (Rangifer tarandus tarandus) in winter. J Zool (Lond) 251.129-138

Olsen MA, Blix AS, Utsi THA, Mathiesen SD (2000) Chitinolytic bacteria in the minke whale forestomach. Can J Microbiol 46:85-94

Nordgarden U, Folkow LP, Walløe L, Blix AS (2000) On the direction and velocity of blood flow in the extradural intravertebral vein of harp seals (Phoca groenlandica) during simulated diving. Acta Physiol Scand 168:271-276

Eilertsen SM, Schjelderup I, Mathiesen SD (2000) Plant quality and harvest in old meadows grazed by reindeer in spring. J Sci Food Agric 80:329-334

1999

Mathiesen SD Rædergård VB, Vader MA, Haga ØE, Norberg HJ, Sørmo W (1999) Salivary glands in Svalbard reindeer (Rangifer tarandus platyrhynchus) and in Norwegian reindeer (Rangifer tarandus tarandus). Rangifer 19:25-32

Mathiesen SD, Utsi THA, Sørmo W (1999) Forage chemistry and digestive system in reindeer (Rangifer tarandus tarandus) in northern Norway and South Georgia. Rangifer 19:91-101

Aarseth JJ, Nordøy ES, Blix AS (1999) The effect of body fat on basal metabolic rate in adult harp seals (Phoca groenlandica) Comp Biochem Physiol A 124:69-72

Lincoln GA, Tyler NJC (1999) Role of oestradiol in the regulation of the seasonal antler cycle in female reindeer, Rangifer tarandus. J Reprod Fertil 115:167-174

Sørmo W, Haga ØE, Gaare R, Langvatn R, Mathiesen SD (1999) Forage chemistry and fermentation chambers in Svalbard reindeer (Rangifer tarandus platyrhynchus). J Zool 247:247-256

Wasteson Y, Arnemo JM, Klungseth B, Vold L, Mathiesen SD, Olsen MA, Derocher AE (1999) Analysis of facecal samples from wild animals for verocytotozin producing Escherichia coli and E coli 0157. Vet Rec:646-647

Odden Å, Folkow LP, Caputa M, Hotvedt R, Blix AS (1999) Brain cooling in diving seals. Acta Physiol Scand 166:77-78

Cabanac AJ, Messelt EB, Folkow LP, Blix AS (1999) The structure and blood-storing function of the spleen of the hooded seal (Cystophora cristata). J Zool 248:75-81

Folkow LP, Blix AS (1999) Diving behaviour of hooded seals (Cystophora cristata) in the Greenland and Norwegian Seals. Polar Biol 22:61-74

Eilertsen SM, Schjelderup I, Mathiesen SD (1999) Utilization of old meadow by reindeer in spring in northern Norway. Rangifer 19:3-11

Reierth E, Van’T Hof TJ, Stokkan KA (1999) Seasonal and daily variations in plasma melatonin in the high-arctic Svalbard ptarmigan (Lagopus mutus hyperboreus) J Biol Rhythms 14:314-319

1998

Tøien Ø, Mercer JM (1998) Thermogenic responses to body cooling during fever induced by Staphylococcus aureus cell walls in rabbits. J Comp Physiol B.168:73-80

Bøkenes L, Mercer JB (1998) A morphometric study of the salt gland in freshwater- and saltwater-adapted eider ducks (Somateria mollissima). J Exp Zool 280:395-402

Moen R, Olsen MA, Haga ØE, Aagnes Utsi TH, Mathiesen SD (1998) Digestion of timothy silage and hay in reindeer. Rangifer 18:35-45

Sørmo W, Haga ØE, Mathiesen SD (1998) Cellulolysis in the fermentation chambers in Svalbard reindeer. Rangifer 18:47-50

Mårtensson P-E, Nordøy ES, Messelt EB, Blix AS (1998) Gut length, food transit time and diving habit in phocid seals. Polar Biol 20:213-217

Caputa M, Folkow L, Blix AS (1998) Rapid brain cooling in diving ducks. Am J Physiol. 275:R363-R371

Reierth E, Stokkan KA (1998) Dual entrainment by light and food in the Svalbard ptarmigan (Lagpus mutus hyperboreus). J Biol Rhythms 13:393-402

Cabanac A, Folkow LP, Blix AS (1998) Effects of adrenergic and cholinergic drugs on splenic arteries and veins from hooded seals (Cystophora cristata). Comp Biochem Physiol A 120:277-281

Olsen MA, Mathiesen SD (1998) The bacterial population adherent to plant particles in the rumen of reindeer fed lichen, timothy hay or silage. Rangifer 18:55-64

Lohman S, Folkow LP, Østerud B, Sager G (1998) Changes in fibrinolytic activity in diving grey seals. Comp Biochem Physiol 120:693-698

Reierth E, Stokkan KA (1998) Activity rhythm in High Arctic Svalbard ptarmigan (Lagopus mutus hyperboreus). Can J Zool 76:2031-2039

1997

Tøien Ø, Mercer JB (1997) Can an unexpected depressed thermogenic response to body cooling during fever be explained by thermosensitivity changes? Ann NY Acad Sci 813:491-496

Cabanac A, Folkow LP, Blix AS (1997) Volume capacity and contraction control of the seal spleen. J Appl Physiol 82:1989-1994

Dietz MW, Van Mourik S, Tøien Ø, Koolmees PA, Monique HG, Tersteeg-Zijderveld MHG (1997) Participation of breast and leg muscles in shivering thermogenesis in young turkeys and guinea fowl. J Comp Physiol B 167:451-460

Josefsen TD, Aagnes TH, Mathiesen SD (1997) Influence of diet on the occurrence of intraepithelial microabscesses and foreign bodies in ruminal mucosa of reindeer calves (Rangifer tarandus tarandus). J Vet Med 44:249-257

Sørmo W, Haga ØE, White RG, Mathiesen SD (1997) Comparative aspects of volatile fatty acid production in the rumen and distal fermentation chamber in Svalbard reindeer. Rangifer 17:81-95

Olsen MA, Aagnes TH, Mathiesen SD (1997) The effect of timothy silage on the bacterial population in rumen fluid of reindeer (Rangifer tarandus tarandus) from natural summer and winter pasture. FEMS Microbiol Ecol 24:127-136

Gotaas G, Milne E, Haggarty P, Tyler NJC (1997) Use of feces to estimate isotopic abundance in doubly labeled water studies in reindeer in summer and winter. Am J Physiol 273:R1451-R1456

Ranheim B, Horsberg TE, Nymoen U, Søli NE, Tyler NJC, Arnemo JM (1997) Reversal of medetomidine-induced sedation in reindeer (Rangifer tarandus) with atipamezole increases the medetomidine concentration in plasma. J Vet Pharmacol Therap 20:350-354

Kvadsheim PH, Folkow LP (1997) Blubber and flipper heat transfer in harp seals. Acta Physiol Scand 161:385-395

1996

Olsen MA, Mathiesen SD (1996) Production rates of volatile fatty acids in the minke whale (Balenoptera acutorostrata) forestomach. Br J Nutr 75:21-31

Olsen MA, Nilssen KT, Mathiessen SD (1996) Gross anatomy of the gastrointestinal system of harp seals (Phoca groenlandica). J Zool 238:581-589

Folkow LP, Mårtensson P-E, Blix AS (1996) Annual distribution of hooded seals (Cystophora cristata) in the Greenland and Norwegian Seas. Polar Biol 179-189

Kvadsheim PH, Folkow LP, Blix AS (1996) Thermal conductivity of minke whale blubber. J Therm Biol 21:123-128

Aagnes TH, Blix AS, Mathiesen SD (1996) Food intake, digestibility and rumen fermentation in reindeer fed baled timothy silage in summer and winter. J Agric Sci 127:517-523

Mårtensson P-E, Gotaas AR, Nordøy ES, Blix AS (1996) Seasonal changes in energy density of prey of Northeast Atlantic seals and whales. Mar Mamm Sci 12(4):635-640

Tøien Ø, Mercer JB (1996) Thermosensitivity is reduced during fever induced by Staphylococcus aureus cell walls in rabbits. Eur J Physiol 432:66-74

Aagnes TH, Mathiesen SD (1996) Gross anatomy of the gastrointestinal tract in reindeer, free-living and fed baled silage in summer and winter. Rangifer 16:31-40

Josefsen TD, Aagnes TH, Mathiesen SD (1996) Influence of diet on the morphology of the ruminal papillae in reindeer calves (Rangifer tarandus tarandus L.). Rangifer 16:119-128

Kvadsheim PH, Gotaas ARL, Folkow LP, Blix AS (1996) An experimental validation of heat loss models for marine mammals. J Theor Biol 184:15-23

1995

Blix AS, Folkow LP (1995) Daily energy expenditure in free living minke whales. Acta Physiol Scand 153:61-66

Aagnes TH, Sørmo W, Mathiesen SD (1995) Ruminal microbial digestion in free-living, in captive lichen-fed, and starved reindeer (Rangifer tarandus tarandus) in winter. Appl Environ Microbiol 583-591

Oehme M, Schlabach M, Hummert K, Luckas B, Nordøy ES (1995) Determination of levels of polychlorinated dibenzo-p-dioxins, dibenzofurans, biphenyls and pesticides in harp seals from the Greenland sea. Sci Total Environ 162:75-91

Aagnes TH, Mathiesen SD (1995) Round baled grass silage as food for reindeer in winter. Rangifer 15:27-35

Nordøy ES, Folkow LP, Blix AS (1995) Distribution and diving behaviour of crabeater seals (Lobodon carcinophagus) off Queen Maud Land. Polar Biol 15:261-268

Tøien Ø, Mercer JB (1995) Effect of total body core cooling during poly I:C-induced fever in rabbits. Am J Physiol 268:R1257-R1265

Tøien Ø, Mercer JB (1995) Poly I:C-induced fever elevates threshold for shivering but reduces thermosensitivity in rabbits. Am J Physiol 268:R1266-R1272

Stokkan K-A, Vaughan MK, Reiter RJ, Folkow LP, Mårtensson P-E, Sager G, Lydersen C, Blix AS (1995) Pineal and thyroid functions in newborn seals. Gen Comp Endocrinol 98:321-331

Stokkan KA (1995) Pineal functions in newborn seals. In: Blix AS, Walløe L, Ulltang Ø (eds) Whales, seals, fish and man. Elsevier, Amsterdam, pp 377-382

Mathiesen SD, Aagnes TH, Sørmo W, Nordøy ES, Blix AS, Olsen MA (1995) Digestive physiology of minke whales. In: Blix AS, Walløe L, Ulltang Ø (eds) Whales, seals, fish and man. Elsevier, Amsterdam, pp 351-359

Nordøy ES, Mårtensson P-E, Lager AR, Folkow LP, Blix AS (1995) Food consumption of the Northeast Atlantic stock of harp seals. In: Blix AS, Walløe L, Ulltang Ø (eds) Whales, seals, fish and man. Elsevier, Amsterdam, pp 255-260

Nordøy ES, Folkow LP, Mårtensson P-E, Blix AS (1995) Food requirements of Northeast Atlantic minke whales. In: Blix AS, Walløe L, Ulltang Ø (eds) Whales, seals, fish and man. Elsevier, Amsterdam, pp 307-317

Bøkenes L, Mercer JB (1995) Salt gland function in the common eider duck (Somateria mollissima). J Comp Phys B 165:255-267

Stokkan K-A, Lindgård K, Reierth E (1995) Photoperiodic and ambient temperature control of the annual body mass cycle in Svalbard ptarmigan. J Comp Phys B 165:359-365

Elsner R, Øyasæter S, Saugstad OD, Blix AS (1995) Seal adaptations for long dives: recent studies of ischemia and oxygen radicals. In: Blix AS, Walløe L, Ulltang Ø (eds) Whales, seals, fish and man. Elsevier, Amsterdam, pp 371-376

Folkow LP, Blix AS (1995) Distribution and diving behaviour of hooded seals. In: Blix AS, Walløe L, Ulltang Ø (eds) Whales, seals, fish and man. Elsevier, Amsterdam, pp 193-202

Lindgård K, Näslund S, Stokkan KA (1995) Annual changes in body mass in captive Svalbard ptarmigan: role of changes in locomotor activity and food intake. J Comp Physiol B 165:445-449

Olsen MA, Aagnes TH, Mathiesen SD (1995) Failure of cellulolysis in rumen of reindeer fed timothy silage. Rangifer 15:79-86

Gotaas G, Tyler NJC (1995) Faeces is a reliable source of body water for measuring tritium in reindeer in summer and in winter. Rangifer 15:63-70

Nordøy ES (1995) Do minke whales (Balenoptera acutorostrata) digest wax esters? Br J Nutr 74:712-722

Nordøy ES (1995) Gastroliths in the harp seal Phoca groenlandica. Polar Res 14(3):335-338

Moe RA, Bakken M, Haga Ø, Smith A (1995) Techniques for surgical implantation of radio transmitters in the silver fox (Vulpes vulpes). J Zoo Wildl Med 26:422-429

1994

Stokkan KA, Reiter RJ (1994) Melatonin rhythms in Arctic urban residents. J Pineal Res 16:33-36

Lincoln GA, Tyler NJC (1994) Role of gonadal hormones in the regulation of the seasonal antler cycle in female reindeer, Rangifer tarandus. J Reprod Fertil 101:129-138

Skog EB, Folkow LP (1994) Nasal heat and water exchange is not an effector mechanism for water balance regulation in grey seals. Acta Physiol Scand 151:233-240

Aagnes TH, Mathiessen SD (1994) Food and snow intake, body mass and rumen function in reindeer fed lichen and subsequently starved for 4 days. Rangifer 14:33-38

Mårtensson PE, Nordøy ES, Blix AS (1994) Digestibility of crustaceans and capelin in harp seals (Phoca groenlandica). Mar Mamm Sci 10:325-331

Lager AR, Nordøy ES, Blix AS (1994) Seasonal changes in food intake of harp seals (Phoca groenlandica) at 69oN. Mar Mamm Sci 10:332-341

Olsen MA, Nordøy ES, Blix AS, Mathiesen SD (1994) Functional anatomy of gastrointestinal system of Northeastern Atlantic minke whales (Balaenoptera acutorostrata). J Zool 234, 55-74

Sørmo W, Aagnes TH, Olsen MA, Mathiesen SD (1994) The bacteriology of the small intestinal mucosa of free-living reindeer. Rangifer 14:65-78

Nilssen KJ, Mathiesen SD, Blix AS (1994) Metabolic rate and plasma T3 in ad lib. fed and starved muskoxen. Rangifer 14:79-81

Kvadsheim PH, Folkow LP, Blix AS (1994) A new device for measurement of the thermal conductivity of fur and blubber. J Therm Biol 19:431-435

Stokkan KA, Tyler NJC, Reiter RJ (1994) The pineal gland signals autumn to reindeer (Rangifer tarandus tarandus) exposed to the continuous daylight of the Arctic summer. Can J Zool 72:904-909

Mårtensson P-E, Nordøy ES, Blix AS (1994) Digestibility of krill (Euphausia superba and Thysanoessa sp.) in minke whales (Balaenoptera acutorostrata) and crabeater seals (Lobodon carcinophagus). Br J Nutrit 72:713-716

Olsen MA, Aagnes TH, Mathiesen SD (1994) Digestion of herring by indigenous bacteria in the minke whale forestomach. Appl Environ Micobiol 60:4445-4455

1993

Cunningham AA, Tyler NJC (1993) Cholangioma in a Svalbard reindeer (Rangifer tarandus platyrhynchus) Vet Rec 132:112-113

Pond MC, Mattacks CA, Colby RH, Tyler NJC (1993) The anatomy, chemical composition and maximum glycolytic capacity of adipose tissue in wild Svalbard reindeer (Rangifer tarandus platyrhynchus) in winter. J Zool 229:17-40

Cheng K-J, McAllister TA, Mathiesen SD, Blix AS, Orpin CG, Costeron JW (1993) Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer. Can J Microbiol 39:101-108

Tøien Ø (1993) Dynamics of heat transfer to cold eggs in incubating bantam hens and black grouse. J Comp Phsyiol B 163:182-188

Silverin B, Massa R, Stokkan KA (1993) Photoperiodic adaptation to breeding at different latitudes in great tits. Gen Comp Endocrinol 90:14-22

Mercer JB, Hammel HT (1993) The shivering response during cross-circulation in the common eider duck (Somateria mollisima). Acta Physiol Scand 148:327-334

Sørmo W, Mathiesen SD (1993) Bacteria in the small intestine of lichen-fed Norwegian reindeer (Rangifer tarandus tarandus) Lett Appl Microbiol 16:170-172

Nordøy ES, Sørmo W, Blix AS (1993) In vitro digestibility of different prey species of minke whales (Balaenoptera acutorostrata) Br J Nutrit 70:485-489

Nordøy ES, Aakvaag A, Larsen TS (1993) Metabolic adaptations to fasting in harp seal pups. Physiol Zool 66:926-945

Tøien Ø (1993) Control of shivering and heart rate in incubating bantam hens upon sudden exposure to cold eggs. Acta Physiol Scand 149:205-214

Tyler NJC, Jonassen M (1993) Reindeer herding in Norway. A salute to world deer farming. In: Woodhouse I (ed) Proc 1st World Deer Congr, Deer Farmers Assoc. Wellington, N.Z. pp. 51-56

Kuhnen G, Mercer JB (1993) Selective brain cooling in resting and exercising Norwegian reindeer (Rangifer tarandus tarandus). Acta Physiol Scand 147:281-288

Stuen S, Krogsrud J, Hyllseth B, Tyler NJC (1993) Serosurvey of three virus infections in reindeer in northern Norway and Svalbard. Rangifer 13:215-220

1992

Henden T, Stokkan KA, Reiter RJ, Nonaka KO, Lerchl A, Jones DJ (1992) Age-associated reduction in pineal beta-adrenergic receptor density is prevented by life-long food restriction in rats. Biol Signals 1:34-39

Mercer JB (1992) The shivering response in animals and man. Arct Med Res 50 (Suppl6):18-22

Johnsen HK, Helle KB, Lundberg JM, Hökfelt T, Folkow LP (1992) Distribution and vasomotor effects of neuropeptides in angular oculi and facial veins of reindeer. Comp Biochem Physiol 1010A:269-276

Blix AS, Letfer JW (1992) Noise and vibration in artificial polar bear dens as related to selected petroleum exploration and developmental activities. Arctic 45:20-24

Nordøy ES, Stijfhoorn DE, Råheim A, Blix AS (1992) Water flux and early signs of entrance into phase III of fasting in grey seal pups. Acta Physiol Scand 144:477-482

Bergland HP, Mercer JB (1992) The effect of rate of cooling, time of day and light regime on the shivering response in rabbits. Acta Physiol Scand 145:413-421

Folkow LP, Blix AS (1992) Metabolic rates of minke whales (Balaenoptera acutorostrata) in cold water. Acta Physiol Scand 146:141-150

Stokkan KA (1992) Energetics and adaptations to cold in ptarmigan in winter. Ornis Scand 23:355-370

Lindgård K, Stokkan KA, LeMaho Y, Groscolas (1992) Protein utilization during starvation in fat and lean Svalbard ptarmigan (Lagopus mutus hyperboreus). J Comp Physiol B 162:607-613

Folkow LP (1992) Adrenergic vasomotor responses in nasal mucosa of hooded seals. Am J Physiol 263:R1291-R1297

1991

Stokkan KA, Reiter RJ, Nonaka KO, Lerchl A, Yu BP, Vaughan MK (1991) Food restriction retards aging of the pineal gland. Brain Res 545:66-72

Stokkan KA, Nonaka KO, Lerchl A, Vaughan MK, Reiter RJ (1991) Low temperatures stimulates pineal activity in Syrian hamster. J Pineal Res 10:43-48

Lerchl A, Reiter RJ, Howes KA, Nonaka KO, Stokkan KA (1991) Evidence that extremely low frequency Ca2+-cyclotron resonance depresses pineal melatonin synthesis in vitro. Neurosci Lett 124:213-215

Nordøy ES, Blix AS (1991) Glucose and ketone body turnover in fasting grey seal pups. Acta Physiol Scand 141:565-571

Tyler NJC (1991) Short-term behavioural responses of Svalbard reindeer (Rangifer tarandus platyrhynchus) to direct provocation by a snowmobile. Biol Conserv 56:179-194

Tyler NJC (1991) Effects of age and reproductive status on fat and muscle reserves in female Svalbard reindeer in autumn. In: Brown RD (ed) The Biology of Deer. Springer-Verlag, New York, pp 233-237

Lincoln GA, Tyler NJC (1991) Antler growth in male and female reindeer calves occurs in the absence of the Gonads. In: Brown ED (ed) The Biology of Deer. Springer-Verlag, New York, pp 493-498

Mercer JB (1991) The shivering response in animals and man. Arct Med Res 50 (Suppl 6):18-22

Folkow LP, Blix AS (1991) Norwegian whale sighting and acoustic surveys in the Atlantic Ocean during the winter of 1989/90. Rep. int. Whal. Commn. 41: 531-538.

1990

Nordøy ES, Ingebretsen OJ, Blix AS (1990) Depressed metabolism and low protein catabolism in fasting grey seal pups. Acta Physiol Scand 139:361-369

Tyler NJC, Hotvedt R, Blix AS, Sørensen DR (1990) Immobilization of Norwegian reindeer (Rangifer tarandus tarandus) and Svalbard reindeer (R. t. platyhunchus) with Medetomidine and Medetomedine-Ketamine and reversal of immobilization with Atipamezole. Acta Vet Scand 31:479-488

Stokkan KA, Sharp PJ (1990) Seasonal breeding in high-arctic ptarmigan. In: Wada M (ed) Endocrinology of Birds: Molecular to Behavioral. Japan Sci Soc Press, Tokyo/Springer-Verlag Berlin, pp 251-258

Moens U, Wold I, Mathiesen SD, Jørgensen T (1990) Parapoxvirus papillomatosis in the muskoxen (Ovibos moschatus): genetical differences between the virus causing new outbreak in vaccinated herd, the vaccine virus and a local Orf virus. Acta Vet Scand 31:17-25

Brix O, Bårdgard A, Mathiesen SD, Tyler NJC, Nuutinen M, Condo SG, Giardina B (1990) Oxygen transport in the blood of arctic mammals: adaptation to local heterothermia. J Comp Physiol B 159:655-660

Johnsen HK, Nilssen KJ, Rognmo A, Blix AS (1990) Reindeer breathe less and save water in cold. Rangifer Special Issue No.3: 243-247

Tyler NJC, Blix AS (1990) Survival strategies in arctic ungulates. Rangifer Special Issue No.3: 211-230

Folkow LP, Blix AS (1990) Passive acoustic censusing of cetaceans. Can passive acoustics be employed to study distribution and migration of northeast Atlantic minke whales? North Atlantic Studies 2(1-2):79-81.

1989

Mortensen A, Blix AS (1989) Seasonal changes in energy intake, energy expenditure, and digestibility in captive Svalbard rock ptarmigan and Norwegian willow ptarmigan. Ornis Scand 20:22-28

Mercer JB, Hammel HT (1989) Total calorimetry and temperature regulation in the nine-banded armadillo. Acta Physiol Scand 135:579-589

Blix AS (1989) Arctic resignation: winter dormancy without hypothermia. In: Malan A and Canguilhem (eds) Living in the cold, 2nd Int Symp, John Libbey, London, pp 117-119

Folkow LP, Blix AS (1989) Thermoregulatory control of expired air temperature in diving harp seals. Am J Physiol 257:R306-R310

Lindgård K, Stokkan KA (1989) Daylength control of food intake and body weight in Svalbard ptarmigan Lagopus mutus hyperboreus. Ornis Scand 20:176-180

Mercer JB (1989) The shivering response in common eider ducks. In: Bech C and Reinertsen RE (eds) Physiology of cold adaptation in birds. Plenum press. pp 17-26

Giardina B, Condo SG, El-Sherbini S, Mathiesen S, Tyler N, Nuutinen M, Bårdgard, Brix O (1989) Arctic life adaptation-I. The function of reindeer hemoglobin. Comp Biochem Physiol 94B:129-133

Brix O, Bårdgard A, Mathiesen S, El-Sherbini S, Saverio GC, Biardina B (1989) Arctic life adaptation-II. The function of musk ox (Ovibos muschatos) hemoglobin. Comp Biochem Physiol 94B:135-138

Tyler NJC, Øritsland A (1989) Why don't Svalbard reindeer migrate? Hol Ecol 12:369-376

Callaghan TV, Carlsson BÅ, Tyler NJC (1989) Historical records of climate-related growth in Cassiope tetragona from the Arctic. J Ecol 77:823-837

1988

Jørgensen E, Blix AS (1988) Energy conservation by restricted body cooling in cold-exposed Willow Ptarmigan chicks? Ornis Scand 19:17-20

Orpin CG (1988) Genetic approaches to the improvement of lignocellulose degradation in the rumen. In: Aubert JP, Beguin P, and MilletJ (eds) Biochemistry and genetics of cellulose degradation. Academic Press, pp 171-179

Nordøy ES, Blix AS (1988) Sources of error in estimating food requirements of seals. Polar Rec 24:62-64

Stokkan K-A, Sharp PJ, Dunn IC, Lea RW (1988) Endochrine changes in photostimulated willow ptarmigan (Lagopus lagopus lagopus) and Svalbard ptarmigan (Lagopus mutus hyperboreus). Gen Comp Endocrinol 70:169-177

Johnsen HK, Folkow LP (1988) Vascular control of brain cooling in reindeer. Am J Physiol 254:R730-R739

Blix AS (1988) Cardiovascular responses to diving. Acta Physiol Scand 133 (Suppl 571):61-68

Orpin CG, Andersen JM (1988) The animal environment. In: Lynch JM and Hobbie JE (eds) Microorganisms in action: Concepts and applications in microbial ecology. Blackwell UK, pp 163-192

Folkow LP, Blix AS, Eide TJ (1988) Anatomical and functional aspects of the nasal mucosal and opthalmic retia of phocid seals. J Zool 216:417-436

Orpin CG (1988) Nutrition and biochemistry of anaerobic chytridiomycetes. BioSystems 21:365-370

Orpin CG, Hazlewood GP, Mann SP (1988) Possibilities of the Use of Recombinant-DNA techniques with Rumen Microorganisms. Animal Feed Sci Technol 21:161-174

Stokkan K-A, Blix AS (1988) Survival strategies in the Svalbard Rock ptarmigan. In: Ouellet H (ed) Acta XIX Congr Int Ornithol. Univ Ottawa Press, Ottawa. pp 2500-2506

Stokkan K-A (1988) Seasonal termination of reproduction in ptarmigan. In: Ouellet H (ed) Acta XIX Congr Int Ornithol. Univ Ottawa Press, Ottawa. pp 641-645

Munn EA, Orpin CG, Greenwood CA (1988) The ultrastructure and possible relationships of four obligate anaerobic chytridiomycete fungi from the rumen of sheep. BioSystems 22:67-81

Dehority BA, Orpin CG (1988) Development of, and natural fluctuations in, rumen microbial populations. In: Hobson PN (ed.) The rumen microbial ecosystem. Elsevier Appl Sci Publ, London, pp 151-183

Orpin CG and Joblin KN (1988) The rumen anaerobic fungi. In: Hobson PN (ed.) The rumen microbial ecosystem. Elsevier Appl Sci Publ, London, pp 129-150

1987

Mathiesen SD, Orpin CG, Greenwood Y, Blix AS (1987) Seasonal changes in the cecal microflora of the high-arctic Svalbard reindeer (Rangifer tarandus platyrhynchus). Appl Environ Microbiol 53:114-118

Williams AG, Orpin CG (1987) Polysaccharide-degrading enzymes formed by three species of anaerobic rumen fungi grown on a range of carbohydrate substrates. Can J Microbiol 33:418-426

Williams AG, Orpin CG (1987) Glycoside hydrolase enzymes present in the zoospore and vegetative growth stages of the rumen fungi Neocallimastix patriciarum Piromonas communis, and an unidentified isolate, grown on a range of carbohydrates. Can J Microbiol 33:427-434

Blix AS (1987) Diving responses: fact or fiction. NIPS 2:64-66

Mercer JB, Simon E (1987) Appropriate and inappropriate hypothalamic cold thermosensitivity in willow ptarmigan. Acta Physiol Scand 131:73-80

Johnsen HK, Blix AS, Mercer JB, Bolz K-D (1987) Selective cooling of the brain in reindeer. Am J Physiol 253:R848-R853

Folkow L, Blix AS (1987) Nasal heat and water exchange in gray seals. Am J Physiol 253:R883-R889

Dickson DPE, Meagher A, Nilssen K, Borch Johnsen B (1987) Seasonal variation in the form of iron in the liver of Spitsbergen reindeer - a mossbauer spectroscopic study. Biochim Biophys Acta 924:442-446

Borch Johnsen B, Nilssen K (1987) Seasonal overload in Svalbard reindeer liver J Nutrition 117:2072-2078

Tyler NJC (1987) Fertility in female reindeer: the effects of nutrition and growth. Rangifer 7:37-41

Lentfer JW, Galster WA (1987) Mercury in polar bears from Alaska. J Wildl Dis 23:338-341

1986

Mortensen A, Blix AS (1986) Seasonal changes in resting metabolic rate and mass-specific conductance in Svalbard ptarmigan, Norwegian rock ptarmigan and Norwegian willow ptarmigan. Ornis Scand 17:8-13. 1986

Stokkan KA, Mortensen A, Blix AS (1986) Food intake, feeding rhythm, and body mass regulation in Svalbard rock ptarmigan. Am J Physiol 251:R264-R267

Stokkan KA, Sharp PJ, Unander S (1986) The annual breeding cycle of the high arctic Svalbard ptarmigan (Lagopus mutus hyperboreus). Gen Comp Endocrinol 61:446-451

Blix AS (1986) Diving bradycardia - fact or fiction? In: Brubakk AO, Kanwisher JW, Sundnes G (eds) Diving in animals and man. Tapir Publishers, Trondheim, pp. 205-228

Folkow LP, Mercer JB (1986) Partition of heat loss in resting and exercising winter- and summer-insulated reindeer. Am J Physiol 251:R32-R40

Kiessling K-H, Kiessling A, Nilssen K, Andersson LL (1986) Histochemical and enzymatic differences in skeletal muscle from Svalbard reindeer during the summer and winter. Rangifer 6:2-7

Orpin CG, Mathiesen SD (1986) Microcetus lappu gen. nov., sp.nov.: New species of ciliated protozoon from the bovine Rumen. Appl Environ Microbiol 52:527-530

1985

Gabrielsen GW, Smith EA (1985) Physiological responses associated with feigned death in the American opossum. Acta Physiol Scand 123:393-398

Stokkan KA, Harvey H, Klandorf, Unander S, Blix SA (1985) Endocrine changes associated with fat deposition and mobilization in Svalbard ptarmigan (Lagopus mutus hyperboreus). Gen Comp Endocrinol 58:76-80

Mortensen A, Nordøy ES, Blix AS (1985) Seasonal changes in the body composition of the Norwegian rock ptarmigan Lagopus mutus. Ornis Scand 16:25-28

Mortensen A, Blix AS (1985) Seasonal changes in the effects of starvation on metabolic rate and regulation of body weight in Svalbard ptarmigan. Ornis Scand 16:20-24

Larsen T, Nilsson NÖ, Blix AS (1985) Effects of prolonged food restriction on some aspects of lipid metabolism in Norwegian and Svalbard reindeer. Acta Physiol Scand 124:173-180

Nilssen KJ, Bye K, Sundsfjord JA, Blix AS (1985) Seasonal changes in T3, FT4 and cortisol in free-ranging Svalbard reindeer (Rangifer tarandus platyrhynchus). Gen Comp Endocrinol 59:210-213

Mathiesen SD, Jørgensen T, Traavik T, Blix AS (1985) On contagious exthyma and its treatment in muskoxen (Ovibos moschatus). Acta Vet Scand 26:120-126

Jørgensen E, Blix AS (1985) Effects of climate and nutrition on growth and survival of Willow ptarmigan chicks. Ornis Scand 16:99-107

Blix AS (1985) Diving response of mammals and birds. In: Rey L (ed) Arctic Underwater Operations. Graham & Trotman, London, pp 73-80

Mercer JB, Johnsen HK, Mathiesen SD, Blix AS (1985) An intra ruminal heat exchanger for use in large conscious animals. Rangifer 5:10-14

Parker H (1985) Compensatory reproduction through renesting in willow ptarmigan. J Wildl Manage 49:599-604

Larsen TS, Blix AS (1985) Seasonal changes in total body water; body composition and water turnover in reindeer. Rangifer 5:2-9

Larsen TS, Nilsson NÖ, Blix AS (1985) Seasonal changes in lipogenesis and lipolysis in isolated adipocytes from Svalbard and Norwegian reindeer. Acta Physiol Scand 123:97-104

Mercer JB, Johnsen HK, Blix AS, Hotvedt R (1985) Central control of expired air temperature and other thermoregulatory effectors in reindeer. Am J Physiol 248:R679-R685

Gabrielsen GW, Blix AS, Ursin H (1985) Orienting and freezing responses in incubating ptarmigan hens. Physiol Behav 34:925-934

Johnsen HK, Rognmo A, Nilssen KJ, Blix AS (1985) Seasonal changes in the relative importance of different avenues of heat loss in resting and running reindeer. Acta Physiol Scand 123:73-79

Gabrielsen GW (1985) Free and forced diving in ducks: habituation of the initial dive response. Acta Physiol Scand 123:67-72

Larsen TS, Lagerkrantz H, Riemersma RA, Blix AS (1985) Seasonal changes in blood lipids, adrenaline, noradrenaline, glucose and insulin in Norwegian reindeer. Acta Physiol Scand 124:53-59

Larsen TS, Nilssen KJ (1985) On the hormonal regulation of lipolysis in isolated reindeer adipocytes. Acta Physiol Scand 125:547-552

Orpin CG, Matiesen SD, Greenwood Y, Blix AS (1985) Seasonal changes in the ruminal microflora of the high-arctic Svalbard reindeer (Rangifer tarandus platyrhynchus). Appl Environ Microbiol 50:144-151

Hanssen I, Utne F (1985) Spring phenology, egg quality and chick production in Willow Grouse (Lagopus l. lagopus) in northern Norway. Cinclus 8:77-81

Parker H (1985) Breeding performance and aspects of habital selection in sub-arctic hooded crows (Corvus corone cornix). Cinclus 8:100-105

Parker H (1985) Effect of culling on population size in hooded crows Corvus corone cornix. Ornis Scand 16:299-304

Larsen TS, Nilsson NÖ, Belfrage P (1985) Seasonal changes in hormone-sensitive lipase activity in adipose tissue from Norwegian and Svalbard reindeer. Acta Physiol Scand 125:735-738

Pedersen HC, Steen JB (1985) Parental care and chick production in a fluctuating population of willow ptarmigan. Ornis Scand 16:270-276

Elsner R, Millard RW, Kjekshus JK, White F, Blix AS, Kemper WS (1985) Coronary blood flow and myocardial segment dimensions during simulated dives in seals. Am J Physiol 249:H1119-H1126

Unander S, Mortensen A, Elvebakk A (1985) Seasonal changes in crop content of the Svalbard ptarmigan Lagopus mutus hyperboreus. Polar Res 3:239-245

Markussen KA, Rognmo, Blix AS (1985) Some aspects of thermoregulation in newborn reindeer calves (Rangifer tarandus tarandus). Acta Physiol Scand 123:215-220

Nordøy ES, Blix AS (1985) Energy sources in fasting grey seal pups evaluated with computer tomography. Am J Physiol 249:R471-R476

Larsen TS, Blix AS, Nilssen KJ, Belfrage P (1985) Mechanisms involved in fat mobilization during winter in reindeer. Acta Physiol Scand 124 (Suppl):542

Johnsen HK, Blix AS, Jørgensen L, Mercer JB (1985) Vascular basis for regulation of nasal heat exchange in reindeer. Am J Physiol 249:R617-R623

Stokkan KA, Sharp PJ, Moss R (1985) Seasonal breeding in grouse and ptarmigan. In: Lofts B, Holmes WN (eds) Current Trends in Comparative Endocrinology. Hong Kong Univ Press, Hong Kong, pp 711-714

1984

Blix AS, Elsner R, Kjekshus JK (1984) How seals avoid myocardial infarction when they should have got it. Eur Surg Res 16 (suppl 2):22-27

Mortensen A (1984) Importance of microbial nitrogen metabolism in the ceca of birds. In: Kling MJ, Reddy CA (eds) Current perspectives in microbial ecology. Am Soc Microbiol, pp 273-278

Stokkan KA, Sharp PJ (1984) The development of photorefractoriness in castrated willow ptarmigan (Lagopus lagopus lagopus). Gen Comp Endocrinol 54:402-408

Nilssen KJ, Johnsen HK, Rognmo A, Blix AS (1984) Heart rate and energy expenditure in resting and running Svalbard and Norwegian reindeer. Am J Physiol 246:R963-R967

Mathiesen SD, Orpin CG, Blix AS (1984) Rumen microbial adaptation to fiber digestion in Svalbard reindeer. Can J Anim Sci 64 (Suppl):261-262

Gaudernack G, Halvorsen O, Skorping A, Stokkan KA (1984) Humoral immunity and output of first-stage larvae of Elaphostrongylus rangiferi (Nematoda, Metastrongyloidea) by infected reindeer, Rangifer tarandus tarandus. J Helminthol 58:13-18

Gjerstad KO, Hanssen I (1984) Experimental lead poisoning in willow ptarmigan. J Wildl Manage 48:1018-1022

Hanssen I, Grammeltvedt R, Hellemann A-L (1984) Effects of different diets on viability, and gut morphology and bacteriology in captive willow ptarmigan chicks (Lagopus l. lagopus) Acta Vet Scand 25:67-75

Mortensen A, Tindall A (1984) The role of urea in nitrogen excretion and caecal nitrogen metabolism in willow ptarmigan. J Comp Physiol B 155:71-74

Nilssen KJ, Sundsfjord JA, Blix AS (1984) Regulation of metabolic rate in Svalbard and Norwegian reindeer. Am J Physiol 247:R837-R841

Parker H (1984) Effect of corvid removal on reproduction of willow ptarmigan and black grouse. J Wildl Manage 48:1197-1205

Blix SA, Grav HJ, Markussen KA, White RG (1984) Modes of thermal protection in newborn muskoxen (Ovibos moschatus). Acta Physiol Scand 122:443-453

Pedersen HC (1984) Territory size, mating status, and individual survival of males in a fluctuating population of willow Ptarmigan. Ornis Scand 15:197-203

Nilssen KJ, Mathiesen SD, Solberg E, Blix AS (1984) Use of progesterone for diagnosis of pregnancy in muskoxen. Biol Pap Univ Alaska 4:186

Mathiesen SD, Rognmo, Blix AS (1984) A test of the usefulness of a commercially available mill "waste product" (AB-84) as feed for starving reindeer. Rangifer 4:28-34

1983

Blix AS, Folkow B (1983) Cardiovascular adjustments to diving in mammals and birds. In: Shepherd JT, Abboud FM (eds) Handbook of Physiology – the cardiovascular system III. Am Physiol Soc, Bethesda, pp 917-945

Blix AS, Johnsen HK (1983) Aspects of nasal heat exchange in resting reindeer. J Physiol 340:445-454

Blix AS, Elsner R, Kjekshus JK (1983) Cardiac output and its distribution through capillaries and A-V shunts in diving seals. Acta Physiol Scand 118:109-116

Larsen TS, Nilsson NÖ, Blix AS (1983) Effects of volatile fatty acids and ketone bodies on lipolysis in isolated adipocytes from Norwegian reindeer (Rangifer tarandus). Acta Physiol Scand 117:451-455

Lentfer JW (1983) Alaskan polar bear movements from mark and recovery. Arctic 36:282-288

Reimers E, Ringberg T (1983) Seasonal changes in body weights of Svalbard reindeer from birth to maturity. Acta Zool Fenn 175:69-72

Blix AS, Elsner R, Franklin D, Hol R, Kjekshus JK, Millard R (1983) Regulation of coronary blood flow and myocardial metabolism in the diving seal. In: Refsum H, Jynge P, Mjøs OD (eds) Myocardial ischaemia and protection. Churchill Linvingstone, London, pp 152-156

Blix AS, Johnsen HK, Mercer JB (1983) On nasal heat exchanges and the structural basis for its regulation in reindeer. J Physiol (Lond) 343:108P-109P

Mortensen A, Unander S, Kolstad M, Blix AS (1983) Seasonal changes in body composition and crop content of Spitzbergen ptarmigan Lagopus mutus hyperboreus. Ornis Scand 14:144-148

Rognmo A, Markussen KA, Jacobsen E, Grav HJ, Blix AS (1983) Effects of improved nutrition in pregnant reindeer in milk quality, calf birth weight, growth and mortality. Rangifer 3:10-18

Blix AS, Fay FH, Ronald K (1983) On testicular cooling in phocid seals. Polar Res 1:231-233

Blix AS Johnsen HK, Mercer JB (1983) Central control of thermal balance in Norwegian reindeer. J Physiol 343:109-110

Blom A, Sjaastad ØV, Jacobsen E (1983) Plasma levels of progesterone and oestradiol-17 in reindeer (Rangifer tarandus tarandus) during pregnancy. Acta Vet Scand 24:287-297

Nilssen KJ, Hove K, Jorde R (1983) Insulin and gastric inhibitory polypeptide secretion in young milk-fed and adult goats. Am J Physiol 244:E209-E215

1982

Stokkan KA, Sharp PJ, Moss R (1982) Development of photorefractoriness in willow ptarmigan (Lagopus lagopus lagopus) and red grouse (Lagopus lagopus scoticus) exposed to different photoperiods. Gen Comp Endocrinol 46:281-287

Hanssen I (1982) Clostridium perfringens type A toxins in relation to nephritis and uric acid diathesis in captive willow ptarmigan (Lagopus l. lagopus). Acta Vet Scand 23:466-467

Hanssen I (1982) Effect of natural feed, antibiotics, tannin, diphenyliodonium- chloride and salicylic acid supplement on plasma uric acid concentration in captive willow ptarmigan (Lagopus l. lagopus). Acta Vet Scand 23:468-470

Hanssen I, Ness J (1982) Chick nutrition and mortality in captive willow ptarmigan (Lagopus l. lagopus). Acta Vet Scand.23:456-465

Hanssen I (1982) Nephritis and uric acid diathesis in captive willow ptarmigan (Lagopus l. lagopus). Effect of feed protein concentration and grass meal admixture. Acta Vet Scand 23:446-455

Kjekshus JK, Blix AS, Elsner R, Hol R, Amundsen E (1982) Myocardial blood flow and metabolism in the diving seal. Am J Physiol 242:R97-R104

Klanndorf H, Stokkan KA, Sharp PJ (1982) Plasma thyroxine and triiodothyronine levels during the development of photorefractoriness in willow ptarmigan (Lagopus lagopus lagopus) exposed to different photoperiods. Gen Comp Endocrinol 47:64-69

Ringberg T, Aakvag A (1982) The diagnosis of early pregnancy and missed abortion in European and Svalbard reindeer (Rangifer tarandus tarandus and Rangifer tarandus platyrhynchus). Rangifer 2:26-30

Hanssen I, Ness J, Steen JB (1982) Parental nutrition and chick production in captive willow ptarmigan (Lagopus l. lagopus). Acta Vet Scand 23:528-538

Hanssen I (1982) Yersinia pseudotuberculosis infection in captive black grouse (Tetrao lyrurus) and willow ptarmigan (Lagopus l. lagopus). Acta Vet Scand 23:622-623

Hanssen I (1982) Nutrition of tetraonids in captivity. J World Pheasant Ass VII, pp???

Reimers E, Ringberg T, Sørumsgård R (1982) Body composition of Svalbard reindeer. Can J Zool 60:1812-1821

Carey FG, Kanwisher JW, Brazier O, Gabrielsen GW, Casey JC, Pratt Jr HL (1982) Temperature and activities of a white shark (Carcarodon carcharias). Copeia 2:245-260

1981

Kanwisher J, Gabrielsen GW, Kanwisher N (1981) Free and forced diving in birds. Science 211:717-719

Kjekshus JK, Blix AS, Elsner R, Millard R, Hol R (1981) The multifactorial approach to myocardial salvage. The experience from diving seals. Acta Med Scand Suppl 651, 210:49-56

Mortensen A, Tindall AR (1981) Caecal decomposition of uric acid in captive and free ranging willow ptarmigan (Lagopus lagopus). Acta Physiol Scand 111:129-133

Mortensen A, Tindall AR (1981) On caecal synthesis and absorption of amino acids and their importance for nitrogen recycling in willow ptarmigan (Lagopus lagopus lagopus). Acta Physiol Scand 113:465-469

Myhre G, Ursin H, Hanssen I (1981) Corticosterone and body temperature during acquisition of social hierarchy in the captive willow ptarmigan (Lagopus l. lagopus). Z Tierpsychol 57:123-130

Parker H (1981) Duration of fertility in willow ptarmigan hens after separation from the cock. Ornis Scand 12:186-187

Parker H (1981) Renesting biology of Norwegian willow ptarmigan. J Wildl Manage 45:858-864

Ringberg TM, White RG, Holleman DF, Luick JR (1981) Prediction of carcass composition in reindeer (Rangifer tarandus tarandus L.) by use of selected indicator bones and muscles. Can J Zool 59:583-588

Ringberg TM, White RG, Holleman DF, Luick JR (1981) Body growth and carcass composition of lean reindeer (Rangifer tarandus tarandus L.) from birth to sexual maturity. Can J Zool 59:1040-1044

Steen JB, Parker H (1981) The egg-"numerostat". A new concept in the regulation of clutch size. Ornis Scand 12:109-110

Larsen T, Myhre K, Vik-Mo H, Mjøs OD (1981) Adipose tissue perfusion and fatty acid release in exercising rats. Acta Physiol Scand 113:111-116

Grøndalen T, Hanssen I (1981) Effekt av store doser vitamin C på osteochondrose hos gris (Effects of large doses of vitamine C on osteochondrosis in pigs [in Norw]). Nord vet Med 33:423-426

1980

Ringberg T, Nilssen K, Strøm E (1980) Do Svalbard reindeer use their subcutaneous fat as insulation? Proc 2nd Int Reindeer/Caribou Symp, Røros, Norway 1979, pp 392-395

Stokkan KA, Sharp PJ (1980) Seasonal changes in the concentrations of plasma luteinizing hormone and testosterone in willow ptarmigan (Lagopus lagopus lagopus) with observations on the effects of permanent short days. Gen Comp Endocrinol 40:109-115

Allen HM (1980) The response of willow grouse chicks to auditory stimuli. 3. Recognition of the incubating hen's voice. Behav Processes 5:39-43

Stokkan KA, Sharp PJ (1980) The roles of day length and the testes in the regulation of plasma LH levels in photosensitive and phtorefractory willow ptarmigan (Lagopus lagopus lagopus). Gen Comp Endocrinol 41:520-526

Stokkan KA, Sharp PJ (1980) The development of photorefractoriness in willow ptarmigan (Lagopus lagopus lagopus) after the suppression of photoinduced LH release with implants of testosterone. Gen Comp Endocrinol 41:527-530

Parker H, Hanssen I (1980) Detrimental effects of cecal defecation in winter roosting willow ptarmigan. Wilson Bull 92:252-253

Myhre G (1980) Social status, external signals and colonic temperature in the captive willow grouse, Lagopus lagopus lagopus. Ornis Scand 11:77-80

Moss G, Hanssen I (1980) Grouse nutrition. Nutr Abstr Rev B 50:555-567

Stokkan KA, Hove K, Carr WR (1980) Plasma concentrations of testosterone and luteinizing hormone in rutting reindeer bulls (Rangifer tarandus). Can J Zool 58:2081-2083

Nilssen KJ, Ringberg T (1980) Seasonal changes in body weight, food intake and thyroxine in free ranging and captive Svalbard reindeer. Proc 2nd Int Reindeer/Caribou Symp, Røros, Norway 1979, pp 329-332

Ringberg T, Reimers E, Søumsgaard R (1980) Growth and seasonal change in organ weights and carcass composition in Svalbard reindeer. Proc 2nd Int Reindeer/Caribou Symp, Røros, Norway 1979, pp 333-340

Blix AS (1980) Temperature regulation and climatic influence on mortality in newborn arctic mammals. Introductory lecture. Proc 2nd Int Reindeer/Caribou Symp, Røros, Norway 1979, pp 360-363

Stokkan KA, Steen JB (1980) Age determined feeding behaviour in willow ptarmigan chicks (Lagopus lagopus lagopus). Ornis Scand 11:75-76

1979

Stokkan K-A (1979) Testosterone and daylength-dependent development of comb size and breeding plumage of male willow ptarmigan (Lagopus lagopus lagopus). Auk 96:106-115

Allen HM (1979) The response of willow grouse chicks to auditory stimuli. 2. Synthesized brooding calls attract machine-incubated chicks. Behav Processes 4:23-33

Blix AS, Grav HJ, Ronald K (1979) Some aspects of temperature regulation in newborn harp seal pups. Am J Physiol 236:Rl88-Rl97

Blix AS, Miller LK, Keyes MC, Grav HJ, Elsner R (1979) Newborn northern fur seals (Callhorhinus ursinus) - do they suffer from cold? Am J Physiol 236:R322-R327

Grav HJ, Blix AS (1979) A source of nonshivering thermogenesis in fur seal skeletal muscle. Science 204:87-89

Blix AS, Steen JB (1979) Temperature regulation in newborn polar homeotherms. Physiol Rev 59:285-303

Aulie A, Grav HJ (1979) Effect of cold acclimation on the oxidative capacity of skeletal muscles and liver in young bantam chicks. Comp Biochem Physiol 62A:335-338

Pedersen HC, Steen JB (1979) Behavioural thermoregulation in willow ptarmigan chicks. Ornis Scand 10:17-21

Myhre K, Steen JB (1979) Body temperature and aspects of behavioural temperature regulation in some neonate subarctic and arctic birds. Ornis Scand 10:1-9

Hanssen I (1979) A comparison of the microbiological conditions in the small intestine and caeca of wild and captive willow grouse (Lagopus lagopus lagopus). Acta Vet. Scand 20:365-371

Hanssen I (1979) Micromorphological studies on the small intestine and caeca in wild and captive willow grouse (Lagopus lagopus lagopus). Acta Vet Scand 20:351-364

Stokkan KA (1979) The effect of permanent short days and castration on plumage and comb growth in male willow ptarmigan (Lagopus lagopus lagopus). Auk 96:682-687

Myhre G, Ursin H (1979) Flight and defense behaviour in ptarmigan confronted by human observer. Z Tierpsychol 51:398-405

Gabrielsen G, Steen JB (1979) Tachycardia during egg-hypothermia in incubating ptarmigan (Lagopus lagopus). Acta Physiol Scand 107:273-277

Hanssen I, Grav HJ, Steen JB, Lysnes H (1979) Vitamin C deficiency in growing willow ptarmigan (Lagopus lagopus lagopus). J Nutr 109:2260-2276

Allen HM (1979) Auditory and visual cues in the initiation of willow grouse brooding periods. Astarte 12:27-30

Tindall AR (1979) The innervation of the hind gut of the domestic fowl. Br Poult Sci 20:473-480

1978

Grammeltvedt R (1978) Atrophy of a breast muscle with a single fibre type (M. pectoralis) in fasting willow grouse (Lagopus lagopus l.). J Exp Zool 205:195-204

Hove K, Steen JB (1978) Blood flow, calcium deposition and heat loss in reindeer antlers. Acta Physiol Scand 104:122-128

Myhre K (1978) Behavioural temperature regulation in neonate chick of bantam hen (Gallus domesticus). Poultry Sci 57:1369-1375

Allen HM, Stokkan KA, Stalsberg H (1978) Egg incubation by a willow grouse cock. Astarte 11:89-91

Allen HM, Ness J (1978) The fate of abnormal eggs in nests of captive willow grouse hens (Lagopus l. lagopus). Astarte 11:89-91

Grammeltvedt R, Steen JB (1978) Fat deposition in Spitzbergen ptarmigan (Lagopus mutus hyperboreus). Arctic 31:496-498

Mortensen A, Tindall A (1978) Uric acid metabolism in the caeca of grouse (Lagopus lagopus). J Physiol 284:159-l60

Ursin H, Blix AS, Rosseland S (1978) Subjects and the methods used in the field phase of the experiment. In: The psychobiology of stress: A study of coping men. Ursin H, Baade E, Levine S (eds) pp 23-33. Academic Press, New York

Halse K, Blix AS, Ellertsen B, Ursin H (1978) Development of performance and fear experience. In: The psychobiology of stress: A study of coping men. Ursin H, Baade E, Levine S (eds) pp 41-47. Academic Press, New York

Hansen KR, Stoa KF, Blix AS, Ursin H (1978) Urinary levels of epinephrine and norepinephrine in parachutist trainees. In: The psychobiology of stress: A study of coping men. Ursin H, Baade E, Levine S (eds) pp 63-74. Academic Press, New York

Strømme S, Wikeby P, Blix AS, Ursin H (1978) Additional heart rate. In: The psychobiology of stress: A study of coping men. Ursin H, Baade E, Levine S (eds) pp 83-89. Academic Press, New York

Hove K (1978) Insulin secretion in lactating cows: response to glucose infused intravenously in normal, ketonemic and starved animals. J Dairy Sci 61:1407-1413

Hove K, Halse K (1978) Absence of feeding-induced variations in plasma insulin in hypoglycaemic-ketonemic cows. Acta vet Scand 19:215-228

Hove K (1978) Maintenance of lactose secretion during acute insulin deficiency in lactating goats. Acta Physiol Scand 103:173-179

Hove K (1978) Effects of hyperinsulinemia on lactose secretion and glucose uptake by the goat mammary gland. Acta Physiol Scand 104:422-430

1977

Rødsæther MC, Olafsen J, Raa J, Myhre K, Steen JB (1977) Copper as an initiating factor of vibriosis (Vibrio anguillarum) in eel (Anguilla anguilla). J Fish Biol 10:17-21

Aulie A (1977) The effect of intermittent cold exposure on the thermoregulatory capacity of bantam chicks, Gallus domesticus. Comp Biochem Physiol 56A:545-549

Gjesdal Å (1977) Social rank, mating and egg fertilization in willow ptarmigan (Lagopus lagopus lagopus). Poultry Sci 56:41-44

Gjesdal Å (1977) External markers of social rank in willow ptarmigan. Condor 79:279-281

Allen HM (1977) Abnormal parental behaviour of captive male willow grouse (Lagopus l. lagopus). Ibis, 119, 199-201

Allen HM (1977) The response of willow grouse chicks to auditory stimuli. 1. Preference for hen grouse calls. Behav Processes 2:27-32

Gabrielsen G, Kanwisher J, Steen JB (1977) "Emotional" bradycardia: A telemetry study on incubating willow grouse (Lagopus lagopus). Acta Physiol Scand 100:255-257

Kjekshus JK, Blix AS (1977) How seals avoid myocardial infarction during diving. Scand J Clin Lab Invest 37:95-98

Allen HM, Parker H (1977) Willow ptarmigan remove broken eggs from the nest. Auk 94:612-613

Boggs C, Norris E, Steen JB (1977) Behavioural and physiological temperature regulation in young chicks of the willow grouse (Lagopus lagopus). Comp Biochem Physiol 58A:371-372

Allen HM, Boggs C, Norris E, Doering M (1977) Parental behaviour of captive willow grouse (Lagopus l. lagopus). Ornis Scand 8:175-183

Myhre K, Steen JB (1977) The effect of plasma proteins on the capillary permeability in the rete mirabile of the eel (Anguilla vulgaris L). Acta Physiol Scand 99:98-104

Sund T (1977) A mathematical model for counter-current multiplication in the swim-bladder. J Physiol 267:670-696

Steen JB, Sundt T (1977) Gas deposition by counter-current multiplication in the eel swim-bladder; experimental verification of a mathematical model. J Physiol 267:697-702

Myhre KJ, Steen JB (1977) The effect of plasma proteins on the capillary permeability in the rete mirabile of the eel (Anguilla vulgaris L). Acta Physiol Scand 99:98-104

1976

Aulie A (1976) The pectoral muscles and the development of thermoregulation in chicks of willow ptarmigan (Lagopus lagopus). Comp Biochem Physiol 53A:343-346

Aulie A (1976) The shivering pattern in an arctic (willow ptarmigan) and a tropical bird (bantam hen). Comp Biochem Physiol 53A:347-350

Blix AS, Kjekshus JK, Enge I, Bergan A (1976) Myocardial blood flow in the diving seal. Acta Physiol Scand 96:277-280

Messelt E, Blix AS (1976) The LDH of the frequently asphyxiated beaver (Castor fiber). Comp Biochem Physiol 53B:77-80

Tindall A (1976) Hind gut function in the grouse (Lagopus lagopus). Comp Biochem Physiol. 54B:145-147

Berg T, Steen JB (1976) Proteolytic activity in ptarmigan muscle. Comp Biochem Physiol 54B:145-147

Blix AS (1976) Metabolic consequences of submersion asphyxia in mammals and birds. Biochem Soc Symp 41:169-178

Bjarghov RE; Fjellheim P Hove K, Jacobsen E, Skjenneberg S, Try K (1976) Nutritional effects on serum enzymes and other blood constituents in reindeer calves (Rangifer tarandus tarandus). Comp Biochem Physiol 55A:187-193

Raa J, Moen P, Steen JB (1976) A nutrition dependent antimicrobial principle in tissue of willow ptarmigan (Lagopus lagopus). J Sci Fd Agric 37:773-776

Grav HJ, Blix AS (1976) Brown adipose tissue - a factor in the survival of harp seal pups. Can J Physiol Pharmacol 54:409-412

Hanssen I, Parker H (1976) Throat obstruction as a mortality factor among willow ptarmigan chicks. Wilson Bull 88:353

Aulie A, Steen JB (1976) Thermoregulation and muscular development in cold exposed willow ptarmigan chicks. (Lagopus lagopus l.). Comp Biochem Physiol 55A:291-293

Blix AS, Rettedal A, Stokkan K-A (1976) On the elicitation of the diving responses in ducks. Acta Physiol Scand 98:478-483

Tindall A (1976) Hind gut fermentation in the domestic fowl. Comp Biochem Physiol 53C:83-89

Myhre K, Steen JB, Stray-Pedersen S (1976) The effect of serotonin and transcapillary pressure in the rete mirabile of the eel (Anguilla vulgaris L.). Acta Physiol Scand 98:200-208

Strømme SB, Blix AS (1976) Indirect evidence for arterial chemoreceptor reflex facilitation by face immersion in man. Aviat Space Environ Med 47:597-599

1975

Hanssen I (1975) Listeriosis among willow grouse in captivity. Nord Vet Med 27:37-41

Aulie A, Moen P (1975) Metabolic thermoregulatory responses in eggs and chicks of willow ptarmigan. Comp Biochem Physiol 51A:605-609

Hanssen I (1975) Pulmonary phycomycosis in captive rock ptarmigan and willow ptarmigan chicks. Acta Vet Scand 16:134-136

Myrberget S, Norris C, Norris E (1975) Grit in Norwegian Lagopus spp. Norw J Zool 23:205-212

Blix AS, Grav HJ, Ronald K (1975) Brown adipose tissue and the significance of the venous plexuses in pinnipeds. Acta Physiol Scand 94:133-135

Norris E, Norris C, Steen JB (1975) Regulation and grinding ability of grit in the gizzard of Norwegian willow ptarmigan (Lagopus lagopus). Poultry Sci 54:1839-1843

Myhre K, Cabanac M, Myhre G (1975) Thermoregulatory behaviour and body temperatur in chicks of willow grouse (Lagopus lagopus lagopus). Poultry Sci 54:1174-1179

Blix AS, Messelt EB, Grav HJ (1975) Differential effects of temperature on activity of LDH from seal and sheep skin. Acta Physiol Scand 95:77-82

Blix AS (1975) The importance of asphyxia for the development of diving bradycardia in ducks. Acta Physiol Scand 95:41-45

Hove K, Jacobsen E (1975) Renal excretion of urea in reindeer. Effect of nutrition. Acta Vet Scand 16:513-519

Hol R, Blix AS, Myhre HO (1975) Selective redistribution of the blood volume in the diving seal (Pagophilus Groenlandicus) Rapp P-V Reun Cons Int Explor Mer 169:423-432

Aulie A (1975) Two respiratory patterns in the budgerigar during flight at different ambient temperatures. Comp Biochem Physiol 52A:81-84

1974

Grav HJ, Blix AS, Paasche A (1974) How do seal pups survive birth in arctic winter? Acta Physiol Scand 92:427-429

Blix AS, Berg T (1974) Arterial hypoxia and the diving responses of ducks. Acta Physiol Scand 92:566-568

1973

Berg T, Blix AS (1973) Distribution of lactate dehydrogenase isozymes in rat liver cells. Nature, New Biology 245:239-240

About

Infrastructure

Our Projects

MSc & PhD projects

Completed PhDs 2021-2022

Completed MSc 2020-2021

Available MSc projects

Education

Members

Arctic chronobiology and physiology

About

Infrastructure

Our Projects

Arctic Seasonal Timekeeping Initiative

SECURE

MSc & PhD projects

Completed PhDs 2021-2022

Completed MSc 2020-2021

Available MSc projects

Education

Members

Lars Folkow – Professor

David Hazlerigg – Professor

Shona Wood – Associate Professor

Monica Alterskjær Sundset – Professor

Barbara Mizumo Tomotani – Researcher

Alex West – Researcher

Arctic chronobiology and physiology