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Førsteamanuensis Sámi dutkamiid guovddáš nicholas.tyler@uit.no +4777644788 90577298 You can find me here

Nicholas Tyler



  • Nicholas J. C. Tyler, E. Post, David Grey Hazlerigg :
    Weak coupling between energetic status and the timing of reproduction in an Arctic ungulate
    Scientific Reports 2024 ARKIV / DOI
  • Nicholas J. C. Tyler, Robert A. E. Fosbury, David Grey Hazlerigg, Christopher Hogg :
    Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)
    Functional Ecology 2024 ARKIV / DOI
  • Alan Boyde, Nicholas J. C. Tyler :
    Microanatomy of incremental growth lines in dental tissues in reindeer Rangifer tarandus
    Journal of Anatomy 2024 ARKIV / DOI
  • Nicholas J. C. Tyler, Inger Hanssen-Bauer, Eirik Førland, Christian Nellemann :
    The shrinking resource base of pastoralism: Saami reindeer husbandry in a climate of change.
    Frontiers in Sustainable Food Systems 2021 ARKIV / DOI
  • Nicholas J. C. Tyler, Pablo Gregorini, Katherine L. Parker, David Hazlerigg :
    Animal responses to environmental variation: physiological mechanisms in ecological models of performance in deer (Cervidae)
    Animal Production Science 2020 DOI
  • David Hazlerigg, Nicholas J. C. Tyler :
    Activity patterns in mammals: Circadian dominance challenged
    PLoS Biology 2019 ARKIV / DOI
  • Nicholas J. C. Tyler, Karl-Otto Jacobsen, Arnoldus S Blix :
    Behavioural Responses of Moulting Barnacle Geese to Experimental Helicopter Noise and a Predator
    Canadian Wildlife Biology & Management 2016 FULLTEKST / ARKIV
  • Nicholas J.C. Tyler, Pablo Gregorini, Mads C. Forchhammer, Karl-Arne Stokkan, Bob van Oort, David Hazlerigg :
    Behavioral timing without clockwork: Photoperiod-dependent trade-off between predation hazard and energy balance in an Arctic ungulate
    Journal of Biological Rhythms 2016 DOI
  • N. J. C. Tyler, Karl-Arne Stokkan, Christopher Hogg, C Nellemann, Arnt Inge Vistnes :
    Cryptic impact: Visual detection of corona light and avoidance of power lines by reindeer
    Wildlife Society Bulletin (WSB) 2016 ARKIV / DOI
  • Arnoldus S Blix, Petter Helgevold Kvadsheim, Marina V. Kholodova, Vladimir E. Sokolov, Edvard Berger Messelt, N. J. C. Tyler :
    Superb Winter fur insulation in the small Siberian musk deer (Moschus moschiferus)
    Rangifer 2015 ARKIV / DOI
  • N. J. C. Tyler, Glen Jeffery, C R Hogg, Karl-Arne Stokkan :
    Ultraviolet Vision May Enhance the Ability of Reindeer to Discriminate Plants in Snow
    Arctic 2014 DOI
  • Ditte Katrine Hendrichsen, N. J. C. Tyler :
    How the timing of weather events influences early development in a large mammal
    Ecology 2014 DOI
  • N. J. C. Tyler, Karl-Arne Stokkan, Chris Hogg, Christian Nellemann, Arnt Inge Vistnes, Glen Jeffery :
    Ultraviolet vision and avoidance of power lines in birds and mammals
    Conservation Biology 2014 ARKIV / DOI
  • N. J. C. Tyler :
    Climate, snow, ice, crashes, and declines in populations of reindeer and caribou (Rangifer tarandus L.)
    Ecological Monographs 2010
  • Weiqun Lu, Qing-Jun Meng, N. J. C. Tyler, Karl-Arne Stokkan, Andrew S.I. Loudon :
    A Circadian Clock Is Not Required in an Arctic Mammal
    Current Biology 2010 DOI
  • E. Post, M.C. Forchhammer, M.S. Bret-Harte, T.V. Callaghan, T.R. Christensen, Bo Elberling et al.:
    Ecological Dynamics Across the Arctic Associated with Recent Climate Change
    Science 2009 DOI
  • N. J. C. Tyler, Mads C. Forchhammer, N. A. Øritsland :
    Nonlinear effects of climate and density in the dynamics of a fluctuating population of reindeer
    Ecology 2008
  • Bob Eric H. van Oort, N. J. C. Tyler, Menno P Gerkema, Lars Folkow, Karl-Arne Stokkan :
    Where clocks are redundant: weak circadian mechanisms in reindeer living under polar photic conditions
    Die Naturwissenschaften 2007 DOI
  • Karl-Arne Stokkan, Bob Eric H. van Oort, N. J. C. Tyler, Andrew S.I. Loudon :
    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
    Journal of Pineal Research 2007 DOI
  • N. J. C. Tyler, Kirsti Strøm Bull, J.M. Turi, Monica Alterskjær Sundset, K. Strøm Bull, KS Bull et al.:
    Saami reindeer pastoralism under climate change: Applying a generalized framework for vulnerability studies to a sub-arctic social-ecological system
    Global Environmental Change 2007 FULLTEKST / DOI
  • Bob Eric H. van Oort, N. J. C. Tyler, M.P. Gerkema, Lars Folkow, Arnoldus S Blix, Karl-Arne Stokkan :
    Circadian organization in reindeer
    Nature 2005 OMTALE
  • JJ McCARTHY, M LONG-MARTELLO, RW CORRELL, N ECKLEY, S FOX, GK HOVELSRUD et al.:
    Chapter 17 Climate change in the context of multiple stressors and resilience
    Arctic Climate Impact Assessment 2005
  • PF Flood, Nicholas Tyler, EK Read, MJ Rodway, PJ Chedrese :
    Ovarian and placental production of progesterone and oestradiol during pregnancy in reindeer
    Animal Reproduction Science 2005
  • Bob Eric H. van Oort, Nicholas Tyler, Pål Vegar Storeheier, Karl-Arne Stokkan :
    The performance and validation of a data logger for long-term determination of activity in free-ranging reindeer, Rangifer tarandus L
    Applied Animal Behaviour Science 2004 DOI
  • Karl-Arne Stokkan, Bob Eric H. van Oort, Nicholas Tyler :
    Biological rhythms in reindeer
    Journal of Animal and Feed Sciences 2004
  • PF Flood, N. J. C. Tyler, EK HOARE, MJ RODWAY, PJ CHEDRESE :
    Ovarian and placental production of progesterone and oestradiol during pregnancy in reindeer
    Animal Reproduction Science 2004
  • BL TURNER, PA MATSON, JJ McCARTHY, RW CORELL, L CHRISTENSEN, N ECKLEY et al.:
    Illustrating the coupled human-environment system for vulnerability analysis: three case studies
    Proceedings of the National Academy of Sciences of the United States of America (PNAS) 2003
  • Pål Vegar Storeheier, Svein Dish Mathiesen , Nicholas Tyler, Monica Alteskjær Olsen :
    Nutritive value of terricolous lichens for reindeer in winter
    The Lichenologist 2002 DOI
  • PV STOREHEIER, SD MATHIESEN, N. J. C. Tyler, I SCHJELDERUP, MA OLSEN :
    Utilization of nitrogen- and mineral-rich vascular forage plants by reindeer in winter
    The Journal of Agricultural Science 2002
  • Åshild Ønvik Pedersen, Ingrid M. Paulsen, Steven Albon, Gustav Busch Arntsen, Brage Bremset Hansen, Rolf Langvatn et al.:
    Svalbard reindeer (Rangifer tarandus platyrhynchus). A status report
    2019
  • Nicholas J. C. Tyler :
    ‘Chi è Babbo Natale?’
    25. Jan 2017
  • Nicholas J. C. Tyler :
    ‘Proposed Arctic Railway Would Cut Through Lapland Reindeer Habitat.’
    01. Aug 2017
  • Nicholas J. C. Tyler :
    ‘In Norway, Fighting the Culling of Reindeer With a Macabre Display’
    06. Dec 2017
  • Nicholas J. C. Tyler :
    ‘Real-Life Red-Nosed Reindeer Faces Climate Change Threats’
    22. Dec 2016
  • Nicholas J. C. Tyler :
    ‘Hva ser rein og andre dyr?’
    18. Mar 2016
  • Nicholas J. C. Tyler :
    ‘Dodging Wind Farms and Bullets in the Arctic’
    01. Mar 2016
  • Nicholas J. C. Tyler :
    ‘Rein som ruser seg’
    22. Aug 2016
  • N. J. C. Tyler, Arnt-Inge Vistnes, Karl Arne Stokkan, Chris R Hogg, Christian Nellemann, Glen Jeffery :
    Power lines, reindeer and UV: A reply to Reimers et al.
    Biological Conservation 2015
  • N. J. C. Tyler :
    Å frykte massedød
    Svalbardposten 19. Mar 2015
  • Ditte Katrine Hendrichsen, N. J. C. Tyler :
    Dynamics and life histories of northern ungulates in changing environments
    2011
  • B. E. H. Van Oort, N. J. C. Tyler, M.P. Gerkema, Lars Folkow, karl-arne Stokkan :
    Photic modulation of the temporal pattern and rate of activity in reindeer
    2006
  • James J. McCarthy, Marybeth L. Martello, Robert Corell, Noelle Eckley, Shari Fox, Grete K. Hovelsrud-Broda et al.:
    Climate Change in the Context of Multiple Stressors and Resilience
    Cambridge University Press 2005
  • N. J. C. Tyler :
    Reindeer Herding
    01. Nov 2004
  • N. J. C. Tyler :
    Reindeer Herding
    01. Nov 2004
  • N. J. C. Tyler :
    For mange dyr
    01. Nov 2004
  • N. J. C. Tyler :
    Noe begrenset hva vi kan finne ut
    11. Mar 2004
  • KS BULL, RW CORRELL, IG EIRA, NI EIRA, S ERIKSEN, I HANSEN-BAUER et al.:
    Assessing vulnerabilities: a new strategy for the Arctic
    2004
  • N. J. C. Tyler :
    Basis for determining an upper limit on reindeer numbers
    2004
  • Kirsti Strøm Bull, Robert Corell, Inger Marie Gaup Eira, Nils Isak Eira, Inger hansen Bauer, Grete K. Hovelsrud et al.:
    Assessing vulnerabilities: a new strategy for the Arctic
    2004
  • Rolf Rødven, Torkild Tveraa, Mads C. Forchhammer, N. J. C. Tyler :
    Selfish mothers: Density related changes of maternal investment in reindeer
    2003

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