Associate Professor

Nicholas Tyler

Centre for Sami Studies

77644788
90577298

nicholas.tyler@uit.no

Add vcard to your contact list (vcard)

Tromsø

TEO-H2 2.213 (Click for map directions)

Tyler, Nicholas J. C.; Hansen-Bauer, Inger; Førland, E J; Nellemann, C. The shrinking resource base of pastoralism: Saami reindeer husbandry in a climate of change.. Frontiers in Sustainable Food Systems 2021; Volum 4. ISSN 2571-581X.s 1 - 46.s doi: 10.3389/fsufs.2020.585685.

Tyler, Nicholas J. C.; Gregorini, Pablo; Parker, Katherine L.; Hazlerigg, David. Animal responses to environmental variation: physiological mechanisms in ecological models of performance in deer (Cervidae). Animal Production Science 2020; Volum 60 (10). ISSN 1836-0939.s 1248 - 1270.s doi: 10.1071/AN19418.

Hazlerigg, David; Tyler, Nicholas J. C.. Activity patterns in mammals: Circadian dominance challenged. PLoS Biology 2019; Volum 17 (7). ISSN 1544-9173.s doi: 10.1371/journal.pbio.3000360.

Tyler, N. J. C.; Stokkan, Karl-Arne; Hogg, Christopher; Nellemann, C; Vistnes, Arnt Inge. Cryptic impact: Visual detection of corona light and avoidance of power lines by reindeer. Wildlife Society Bulletin (WSB) 2016; Volum 40 (1). ISSN 0091-7648.s 50 - 58.s doi: 10.1002/wsb.620.

Tyler, Nicholas J. C.; Jacobsen, Karl-Otto; Blix, Arnoldus S. Behavioural Responses of Moulting Barnacle Geese to Experimental Helicopter Noise and a Predator. (fulltekst) Canadian Wildlife Biology & Management 2016; Volum 5 (1). ISSN 1929-3100.

Tyler, Nicholas J.C.; Gregorini, Pablo; Forchhammer, Mads C.; Stokkan, Karl-Arne; van Oort, Bob; Hazlerigg, David. Behavioral timing without clockwork: Photoperiod-dependent trade-off between predation hazard and energy balance in an Arctic ungulate. Journal of Biological Rhythms 2016; Volum 31 (5). ISSN 0748-7304.s 522 - 533.s doi: 10.1177/0748730416662778.

Blix, Arnoldus S; Kvadsheim, Petter Helgevold; Kholodova, Marina V.; Sokolov, Vladimir E.; Messelt, Edvard Berger; Tyler, N. J. C.. Superb Winter fur insulation in the small Siberian musk deer (Moschus moschiferus). Rangifer 2015; Volum 35 (1). ISSN 0333-256X.s 53 - 60.s doi: 10.7557/2.35.1.3575.

Hendrichsen, Ditte Katrine; Tyler, N. J. C.. How the timing of weather events influences early development in a large mammal. Ecology 2014; Volum 95 (7). ISSN 0012-9658.s 1737 - 1745.s doi: 10.1890/13-1032.1.

Tyler, N. J. C.; Stokkan, Karl-Arne; Hogg, Chris; Nellemann, Christian; Vistnes, Arnt Inge; Jeffery, Glen. Ultraviolet vision and avoidance of power lines in birds and mammals. Conservation Biology 2014; Volum 28 (3). ISSN 0888-8892.s 630 - 631.s doi: 10.1111/cobi.12262.

Tyler, N. J. C.; Jeffery, Glen; Hogg, C R; Stokkan, Karl-Arne. Ultraviolet Vision May Enhance the Ability of Reindeer to Discriminate Plants in Snow. Arctic 2014; Volum 67 (2). ISSN 0004-0843.s 159 - 166.s doi: 10.14430/arctic4381.

Lu, Weiqun; Meng, Qing-Jun; Tyler, N. J. C.; Stokkan, Karl-Arne; Loudon, Andrew S.I.. A Circadian Clock Is Not Required in an Arctic Mammal. Current Biology 2010; Volum 20 (6). ISSN 0960-9822.s 533 - 537.s doi: 10.1016/j.cub.2010.01.042.

Tyler, N. J. C.. Climate, snow, ice, crashes, and declines in populations of reindeer and caribou (Rangifer tarandus L.). Ecological Monographs 2010; Volum 80 (2). ISSN 0012-9615.s 197 - 219.

Post, E.; Forchhammer, M.C.; Bret-Harte, M.S.; Callaghan, T.V.; Christensen, T.R.; Elberling, Bo; Fox, A.D.; Gilg, O.; Hik, D.S.; Høye, T.T.; Ims, R.A.; Jeppesen, E.; Jeppesen, Erik; Klein, D.R.; Madsen, J.; McGuire, A.D.; Rysgaard, S.; Schindler, D.E.; Stirling, I.; Tamstorf, Mikkel P.; Tyler, N.J.C.; Wal, Rene van der; van der Wal, Rene; Welker, J.; Wookey, P.A.; Schmidt, N.M.; Aastrup, P.. Ecological Dynamics Across the Arctic Associated with Recent Climate Change. Science 2009; Volum 325 (5946). ISSN 0036-8075.s 1355 - 1358.s doi: 10.1126/science.1173113.

Tyler, N. J. C.; Forchhammer, Mads C.; Øritsland, N. A.. Nonlinear effects of climate and density in the dynamics of a fluctuating population of reindeer. Ecology 2008; Volum 89 (6). ISSN 0012-9658.s 1675 - 1686.

Tyler, N. J. C.; Bull, Kirsti Strøm; Turi, J.M.; Sundset, Monica Alterskjær; Bull, KS; Strøm Bull, K.; Sara, M.N.; Reinert, E.; Oskal, N.; Nellemann, C.; McCarthy, J.J.; Mathiesen, Svein D.; Martello, M.L.; Magga, Ole Henrik; Hovelsrud, Grete K.; Hanssen-Bauer, I.; Eira, Nils Isak; Eira, Inger Marie Gaup; Corell, R.W.. Saami reindeer pastoralism under climate change: Applying a generalized framework for vulnerability studies to a sub-arctic social-ecological system. (fulltekst) Global Environmental Change 2007; Volum 17. ISSN 0959-3780.s 191 - 206.s doi: 10.1016/j.gloenvcha.2006.06.001.

van Oort, Bob Eric H.; Tyler, N. J. C.; Gerkema, Menno P; Folkow, Lars; Stokkan, Karl-Arne. Where clocks are redundant: weak circadian mechanisms in reindeer living under polar photic conditions. Die Naturwissenschaften 2007; Volum 94. ISSN 0028-1042.s doi: 10.1007/s00114-006-0174-2.

Stokkan, Karl-Arne; van Oort, Bob Eric H.; Tyler, N. J. C.; Loudon, Andrew S.I.. 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; Volum 43. ISSN 0742-3098.s 289 - 293.s doi: 10.1111/j.1600-079X.2007.00476.x.

Flood, PF; Tyler, Nicholas; Read, EK; Rodway, MJ; Chedrese, PJ. Ovarian and placental production of progesterone and oestradiol during pregnancy in reindeer. Animal Reproduction Science 2005; Volum 85. ISSN 0378-4320.

McCARTHY, JJ; LONG-MARTELLO, M; CORRELL, RW; ECKLEY, N; FOX, S; HOVELSRUD, GK; MATHIESEN, SD; POLSKY, C; SELIN, H; Tyler, N. J. C.; STRØM-BULL, K; SIEGEL-CAUSEY, D; EIRA, IMG; EIRA, NI; ERIKSEN, S; HANSEN-BAUER, I; KALSTAD, JK; NELLEMANN, C; OSKAL, N; REINERT, ES; STOREHEIER, PV; TURI, JM. Chapter 17 Climate change in the context of multiple stressors and resilience. Arctic Climate Impact Assessment 2005.

van Oort, Bob Eric H.; Tyler, N. J. C.; Gerkema, M.P.; Folkow, Lars; Blix, Arnoldus S; Stokkan, Karl-Arne. Circadian organization in reindeer. (omtale) Nature 2005; Volum 438. ISSN 0028-0836.s 1095 - 1096.

van Oort, Bob Eric H.; Tyler, Nicholas; Storeheier, Pål Vegar; Stokkan, Karl-Arne. 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; Volum 89 (3-4). ISSN 0168-1591.s 299 - 308.s doi: 10.1016/j.applanim.2004.06.009.

Stokkan, Karl-Arne; van Oort, Bob Eric H.; Tyler, Nicholas. Biological rhythms in reindeer. Journal of Animal and Feed Sciences 2004; Volum 13. ISSN 1230-1388.s 715 - 716.

Flood, PF; Tyler, N. J. C.; HOARE, EK; RODWAY, MJ; CHEDRESE, PJ. Ovarian and placental production of progesterone and oestradiol during pregnancy in reindeer. Animal Reproduction Science 2004; Volum 85. ISSN 0378-4320.s 147 - 162.

TURNER, BL; MATSON, PA; McCARTHY, JJ; CORELL, RW; CHRISTENSEN, L; ECKLEY, N; HOVELSRUD, GK; KASPERSON, JX; KASPERSON, RE; LUERS, A; MARTELLO, ML; MATHIESEN, SD; NAYLOR, S; POLSKY, C; PULSIPHER, A; SCHILLER, A; Tyler, N. J. C.. 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 2003; Volum 100. ISSN 0027-8424.s 8080 - 8085.

Storeheier, Pål Vegar; Mathiesen, Svein Dish; Tyler, Nicholas; Olsen, Monica Alteskjær. Nutritive value of terricolous lichens for reindeer in winter. The Lichenologist 2002; Volum 34. ISSN 0024-2829.s 247 - 257.s doi: 10.1006/lich.2002.0394.

STOREHEIER, PV; MATHIESEN, SD; Tyler, N. J. C.; SCHJELDERUP, I; OLSEN, MA. Utilization of nitrogen- and mineral-rich vascular forage plants by reindeer in winter. Journal of Agricultural Science 2002; Volum 139. ISSN 0021-8596.s 1 - 10.

Mathiesen, Svein Dish; Sørmo, Wenche; Haga, Øyvind E.; Nordberg, Harry J; Utsi, Tove Aagnes; Tyler, N. J. C.. The oral anatomy of Arctic ruminants: coping with seasonal changes. (data) (sammendrag) Journal of Zoology 2000; Volum 251 (01). ISSN 0952-8369.

Gotaas, G.; Milne, E.; Haggarty, P.; Tyler, Nicholas. Loss of deuterium in faecal solids and by sequestration in reindeer: effect on doubly labelled water studies. Rangifer 2000; Volum 20. ISSN 0333-256X.s 31 - 41.

Gotaas, G.; Milne, E.; Haggarty, P.; Tyler, Nicholas. Energy expenditure in free-living reindeer estimated by the doubly labelled water method. Rangifer 2000; Volum 20. ISSN 0333-256X.s 211 - 220.

Mathiesen, S. D.; Haga, Ø. E.; Kaino, T.; Tyler, Nicholas. Diet composition, rumen papillation and maintenance of carcass mass in female Norwegian reindeer (Rangifer tarandus tarandus) in winter. Journal of Zoology 2000; Volum 251. ISSN 0952-8369.s 129 - 138.

Mathiesen, S. D.; Sørmo, W.; Haga, Ø. E.; Norrberg, H. J.; Utsi, T. H. A.; Tyler, Nicholas. The oral anatomy of Arctic ruminants: coping with seasonal changes. Journal of Zoology 2000; Volum 251. ISSN 0952-8369.s 119 - 128.

Mathiesen, S. D.; Sørmo, W.; Haga, Ø. E.; Vader, Marit Arianne; Rædergård, V. B.; Tyler, Nicholas; Hofmann, R. R.. Functional anatomy of the omasum in high Arctic Svalbard reindeer (Rangifer tarandus platyrhynchus) and Norwegian mainland reindeer (Rangifer t. tarandus). Acta Veterinaria Scandinavica (AVS) 2000; Volum 41. ISSN 0044-605X.s 25 - 40.

Mesteig, K.; Tyler, Nicholas; Blix, Arnoldus S. Seasonal changes in heart rate and food intake in reindeer (Rangifer tarandus tarandus). Acta Physiologica Scandinavica 2000; Volum 170. ISSN 0001-6772.s 145 - 151.

Van Oort, B. E. H.; Tyler, Nicholas; Reierth, E.; Stokkan, Karl-Arne. Biological rhythms in Arctic vertebrates. Rangifer 2000; Volum 20. ISSN 0333-256X.s 99 - 112.

Tyler, Nicholas; Fauchald, Per; Johansen, O.; Christiansen, H. R.. Seasonal inappetance and weight loss in female reindeer in winter. Ecological bulletins 1999; Volum 47. ISSN 0346-6868.s 105 - 116.

Storheier, P. V.; Mathiesen, S. D.; Tyler, Nicholas; Olsen, M. A.. Digestiblity of fresh and dried lichens in reindeer. South African Journal or Animal Science 1999; Volum 29. ISSN 0375-1589.s 181 - 182.

Mathiesen, S. D.; Rædergård, V. B.; Vader, Marit Arianne; Haga, Ø. E.; Norberg, H. J.; Sørmo, W.; Tyler, Nicholas. Salivary glands in Svalbard reindeer (Rangifer tarandus platyrhynchus) and in Norwegian (Rangifer t. tarandus). Rangifer 1999; Volum 19. ISSN 0333-256X.s 25 - 32.

Lincoln, G. A.; Tyler, Nicholas. Role of oestradiol in the regulation of the seasonal antler cycle in female reindeer, Rangifer tarandus. Journal of Reproduction and Fertility 1999; Volum 115. ISSN 0022-4251.s 167 - 174.

Ranheim, B.; Horsberg, T. E.; Nymoen, U.; Søli, N. E.; Tyler, Nicholas; Arnemo, J. M.. Reveral of Medetomedine- Induced Sedation in Reindeer (Rangifer tarandus tarandus) with Atipamezole Increases the Medetomedine Concentration in Plasma. Journal of Veterinary Pharmacology and Therapeutics 1997; Volum 20. ISSN 0140-7783.s 350 - 354.

Gotaas, G.; Milne, E.; Haggarty, P.; Tyler, Nicholas. Use of Faeces to Estimate Isotopic Abundance in Doubly Labelled Water Studies in Reindeer in Summer and Winter. American Journal of Physiology. Regulatory Integrative and Comparative Physiology 1997; Volum 273. ISSN 0363-6119.s 1451 - 1456.

GOTAAS, G; Tyler, N. J. C.. Faeces is a reliable source of body water for measuring tritium in reindeer in summer and in winter. Rangifer 1995; Volum 15 (2). ISSN 0333-256X.s 63-70 - .

LINCOLN, GA; Tyler, N. J. C.. Role of gonadal hormones in the regulation of the seasonal antler cycle in female reindeer, Rangifer tarandus. Journal of Reproduction and Fertility 1994; Volum 101. ISSN 0022-4251.s 129 - 138.

Stokkan, Karl-Arne; Tyler, N. J. C.; REITER, RJ. The pineal gland signals autumn to reindeer (Rangifer tarandus tarandus) exposed to the continous daylight of the Arctic summer. Canadian Journal of Zoology 1994; Volum 72. ISSN 0008-4301.s 904 - 909.

Pond, C M; Mattacks, C A; Colby, R H; Tyler, N. J. C.. The anatomy, chemical composition and maximum glycolytic capacity of adipose tissue in wild Svalbard reindeer (Rangifer tarandus platyrhynchus). Journal of Zoology 1993; Volum 229. ISSN 0952-8369.s 17 - 40.

Tyler, N. J. C.; Stuen, Snorre; Krogsrud, J; Hyllseth, Berit. Serosurvey of three virus infections in reindeer in northern Norway and Svalbard. Rangifer 1993; Volum 13 (4). ISSN 0333-256X.s 215 - 219.

Cunningham, A A; Tyler, N. J. C.; Leverne, A. Cholangioma in a Svalbard reindeer (Rangifer tarandus platyrhynchus). The Veterinary Record 1993; Volum 132. ISSN 0042-4900.s 112 - 112.

Tyler, N. J. C.. Body composition of female Svalbard reindeer: the effects of age and reproductive status. 1992 ISBN 0387975764.s 233 - 237.

Lincoln, G A; Tyler, N. J. C.. Antler growth in male and female reindeer calves (Rangifer tarandus) occurs in the absence of the gonads. 1992 ISBN 0387975764.s 493 - 498.

Tyler, N. J. C.. Short term behavioural responses of Svalbard reindeer to direct provocation by a snowmobile. Biological Conservation 1991; Volum 56. ISSN 0006-3207.s 179 - 194.

Tyler, N. J. C.; Blix, A S. Survival strategies in Arctic ungulates. Rangifer Special Issue 1990; Volum 3. ISSN 0801-6399.s 211 - 230.

Tyler, N. J. C.; Hotvedt, R.; Blix, A S; Sørensen, D. Immobilization of Norwegian reindeer (Rangifer tarandus tarandus) and Svalbard reindeer (Rangifer tarandus platyrhynchus) with medetomidine and metetomidine-ketamine and reversal of immobilization with atipamezole. Acta Veterinaria Scandinavica 1990; Volum 31 (4). ISSN 1751-0147.s 479 - 488.

Callaghan, T V; Carlsson, B A; Tyler, N. J. C.. Historical records of climate-related growth in Cassiope tetragona from the high Arctic. Journal of Ecology 1989; Volum 77. ISSN 0022-0477.s 823 - 837.

Tyler, N. J. C.; Øritsland, N A. Why don't Svalbard reindeer migrate?. Holarctic Ecology 1989; Volum 12. ISSN 0105-9327.s 369 - 376.

Tyler, N. J. C.. Estimating the daily dry matter intake of Svalbard reindeer in late winter. Rangifer 1987; Volum 7 (1). ISSN 0333-256X.s 29 - 32.

Tyler, N. J. C.. Fertility in female reindeer: the effects of nutrition and growth. Rangifer 1987; Volum 7 (2). ISSN 0333-256X.s 37 - 44.

Tyler, N. J. C.. Sexual dimorphism in the pelvic bones of Svalbard reindeer. Journal of Zoology 1987; Volum 231. ISSN 0952-8369.s 147 - 152.

Tyler, N. J. C.. The relationship between the fat content of Svalbard reindeer in autumn and their death from starvation in winter. Rangifer Special Issue 1986; Volum 1. ISSN 0801-6399.s 311 - 314.

Edwards, G E; Robinson, S P; Tyler, N. J. C.; Walker, D A. A requirement for chelation in obtaining functional chloroplasts of sunflower and wheat. Archives of Biochemistry and Biophysics 1978; Volum 190 (2). ISSN 0003-9861.s 421 - 433.

Edwards, G E; Robinson, S P; Tyler, N. J. C.; Walker, D A. Photosynthesis by isolated protoplasts, protoplast extracts, and chloroplasts of wheat – influence of ortho-phosphate, pyrophosphate and adenylates. Plant Physiology 1978; Volum 62 (2). ISSN 0032-0889.s 313 - 319.

Tyler, N. J. C.. Body composition of female Svalbard reindeer: the effects of age and reproductive status. 1992 ISBN 0387975764.s 493 - 498.

Tyler, N. J. C.. Body composition and energy balance of pregnant and non-pregnant Svalbard reindeer during winter. 1987 ISBN 0198540051.

Pedersen, Åshild Ønvik; Paulsen, Ingrid M.; Albon, Steven; Arntsen, Gustav Busch; Hansen, Brage Bremset; Langvatn, Rolf; Loe, Leif Egil; Le Moullec, Mathilde; Overrein, Øystein; Peeters, Bart; Ravolainen, Virve; Ropstad, Erik; Stien, Audun; Tyler, Nicholas J. C.; Veiberg, Vebjørn; van der Wal, René; Andersen, Roy; Beumer, Larissa Teresa; Eischeid, Isabell; Forchhammer, Mads C.; Irvine, R. Justin; Marolla, Filippo; Pigeon, Gabriel; Reimers, Eigil; Trondrud, Liv Monica. Svalbard reindeer (Rangifer tarandus platyrhynchus). A status report. 2019 (151) ISBN 978-82-7666-427-0. ISSN 0803-0421.

Tyler, Nicholas J. C.. ‘In Norway, Fighting the Culling of Reindeer With a Macabre Display’. 2017.

Tyler, Nicholas J. C.. ‘Chi è Babbo Natale?’. 2017.

Tyler, Nicholas J. C.. ‘Proposed Arctic Railway Would Cut Through Lapland Reindeer Habitat.’. 2017.

Tyler, Nicholas J. C.. ‘Dodging Wind Farms and Bullets in the Arctic’. 2016.

Tyler, Nicholas J. C.. ‘Hva ser rein og andre dyr?’. 2016.

Tyler, Nicholas J. C.. ‘Rein som ruser seg’. 2016.

Tyler, Nicholas J. C.. ‘Real-Life Red-Nosed Reindeer Faces Climate Change Threats’. 2016.

Tyler, N. J. C.. Å frykte massedød. Svalbardposten 2015.

Tyler, N. J. C.; Vistnes, Arnt-Inge; Stokkan, Karl Arne; Hogg, Chris R; Nellemann, Christian; Jeffery, Glen. Power lines, reindeer and UV: A reply to Reimers et al.. Biological Conservation 2015; Volum 184. ISSN 0006-3207.s 472 - 472.

Hendrichsen, Ditte Katrine; Tyler, N. J. C.. Dynamics and life histories of northern ungulates in changing environments. AGU Fall meeting 2011 2011-12-05 - 2011-12-09 2011.

Van Oort, B. E. H.; Tyler, N. J. C.; Gerkema, M.P.; Folkow, Lars; Stokkan, karl-arne. Photic modulation of the temporal pattern and rate of activity in reindeer. Sixth International Deer Biology Congress 2006-08-10 - 2006-08-12 2006.

McCarthy, James J.; Martello, Marybeth L.; Corell, Robert; Eckley, Noelle; Fox, Shari; Hovelsrud-Broda, Grete K.; Mathiesen, Svein Dish; Polsky, Colin; Selin, Henrik; Tyler, N. J. C.; Strøm Bull, Kirsti; Siegel-Causey, Douglas; Eira, Inger Maria Gaup; Eira, Nils Isak; Eriksen, Siri E H; Hansen-Bauer, Inger; Kalstad, Johan Klemet Hætta; Nellemann, Christian; Oskal, Nils; Reinert, Erik S.; Storeheier, Paal Vegar; Turi, Johan Mathis. Climate Change in the Context of Multiple Stressors and Resilience. Cambridge University Press 2005.

Tyler, N. J. C.. Basis for determining an upper limit on reindeer numbers. Reindeer Husbandry Seminar 2004-11-11 - 2004-11-12 2004.

Bull, Kirsti Strøm; Corell, Robert; Eira, Inger Marie Gaup; Eira, Nils Isak; hansen Bauer, Inger; Hovelsrud, Grete K.; Mathiesen, Svein Disch; McCARTHY, JJ; LONG-MARTELLO, M; Nellemann, Cristian; Oskal, Nils; POLSKY, C; Reinert, Erik; Storheier, P. V.; Tyler, Nicholas J. C.; Turi, Johan Mathis. Assessing vulnerabilities: a new strategy for the Arctic. ACIA International Scientific Symposium on Climate Change 2004-11-01 - 2004-11-07 2004.

Tyler, N. J. C.. Reindeer Herding. 2004.

Tyler, N. J. C.. Noe begrenset hva vi kan finne ut. 2004.

Tyler, N. J. C.. For mange dyr. 2004.

BULL, KS; CORRELL, RW; EIRA, IG; EIRA, NI; ERIKSEN, S; HANSEN-BAUER, I; HOVELSRUD, GK; MATHIESEN, SD; McCARTHY, JJ; LONG-MARTELLO, M; NELLEMANN, C; OSKAL, N; POLSKY, C; REINERT, E; STOREHEIER, PV; Tyler, N. J. C.; TURI, JM. Assessing vulnerabilities: a new strategy for the Arctic. ACIA International Scientific Symposium on Climate Change 2004-11-01 - 2004-11-07 2004.

Rødven, Rolf; Tveraa, Torkild; Forchhammer, Mads C.; Tyler, N. J. C.. Selfish mothers: Density related changes of maternal investment in reindeer. 11th Arctic Ungulate Congress 2003-08-24 - 2003-08-28 2003.

Rødven, Rolf; Forchhammer, Mads C.; Tveraa, Torkild; Tyler, N. J. C.. Life history consequences of variation in early development in female reindeer calves. 5th International Deer Biology Congress 2002-08-25 - 2002-08-30 2002.

Tyler, Nicholas. ukjent. Den 9. Nord-amerikanske caribou workshopen. NRL's informasjon 2001-08-08 - 2001-08-10 2001.

Tyler, Nicholas; Rædergård, V. B.. Lokalbedøvelse ved kastrering av rein: en undersøkelse av anvendelse og gjennomførbarhet i felt. 2001.

Tyler, Nicholas. The Falkland Islands Programme. 2001.

Tyler, Nicholas. Reintap og forstyrrelse. 2001.

Tyler, Nicholas. Young reindeer herders on Svalbard. 2001.

Tyler, Nicholas. Video: "Vidda". 2001.

Tyler, Nicholas; Rødven, Rolf. Use and abuse of live body mass data. 9th North American Caribou Workshop 2001-03-23 - 2001-03-27 2001.

Tyler, Nicholas. Use of dataloggers in reindeer research. Special course for teachers 2001-10-01 - 2001.

Tyler, Nicholas. Overgrazing? No, thanks!. National Public Research Presentation (Forskningsdagene 2001) 2001-09-01 - 2001.

Tyler, Nicholas. Reindeer management in an unpredictable environment. Agriculture students (Norwegian Agricultural University) 2001-08-01 - 2001.

Tyler, Nicholas. ukjent. Cuobbojeaggi Projec 2001-03-01 - 2001.

Rødven, Rolf; Forchhammer, M. C.; Tyler, Nicholas. Environmental variability and live body mass of reindeer calves at weaning. 9th North American Caribou Workshop. 2001-04-23 - 2001-04-27 2001.

Rødven, Rolf; Tyler, Nicholas. Short-term loss in live body mass in reindeer Rangifer tarandus tarandus. 11th Nordic Conference on Reindeer Research 2001-01-01 - 2001.

Ropstad, E.; Albon, S. D.; Johansen, O.; Dahl, E.; Tyler, Nicholas. Reproductive success of reindeer associated with climate variability. 11th Nordic Conference on Reindeer Research 2001-01-01 - 2001.

Pentha, S. M.; Tyler, Nicholas; Wookey, P. A.; Mathiesen, S. D.. Experimental warming of reindeer forage plants in situ increases their growth. 11th Nordic Conference on Reindeer Research 2001-01-01 - 2001.

Tyler, N. J. C.; Rødven, Rolf. Fertility is not a function of mean live body mass in adult female reindeer. 11th Nordic Conference on Reindeer and Reindeer Husbandry Research 2001-06-18 - 2001-06-20 2001.

Tyler, Nicholas. Who loses their calf? Pregnancy, calf losses and the age and live body mass of females. Open meeting on 'The Predator Problem' 2000-02-01 - 2000.

Tyler, Nicholas. Reindeer studies in Svalbard: demography of reindeer in Adventdalen. 2000.

Tyler, Nicholas. Worlds Apart: Arctic and Antarctic. 2000.

Tyler, Nicholas. Rapport fra Sameland. 2000.

Tyler, Nicholas. Recruitment stipend for young Saami. 2000.

Tyler, Nicholas. Rapport fra Sameland. 2000.

Tyler, Nicholas. Sahkavaibmosis. 2000.

Tyler, Nicholas. 22 år med reinsdyrtellinger. 2000.

Tyler, Nicholas; Rædergård, V. B.; Vader, Marit Arianne. Fetal growth and timing of conception in Svalbard reindeer. 14th International Congress on Animal Reproduction 2000-07-01 - 2000.

Tyler, Nicholas; Rædergård, V. B.; Vader, Marit Arianne. Early reproductive failure in female Svalbard reindeer in relation to age, fat and body mass. 14th International Congress on Animal Reproduction 1999-07-01 - 2000.

Tyler, Nicholas. Persistent Instability. Saami Reindeer Herders' Association Board Meeting 2000-05-01 - 2000.

Tyler, Nicholas. Persistent Instability. Store Norske 2000-08-01 - 2000.

Tyler, Nicholas. Ukjent. Nordisk Reinforskermøte (Eleventh Nordic Reindeer Research Meeting) 2001-01-01 - 2000.

Tyler, Nicholas. ukjent. 9th North American Caribou Workshop 2001-01-01 - 2000.

Tyler, Nicholas. ukjent. Reindriftskole 2001-01-01 - 2000.

Tyler, Nicholas; Flood, P. F.; Hoare, E. K.; Rodway, M. J.; Chedrese, P. J.. Progesterone production during pregnancy in reindeer. 10th Arctic Ungulate Conference 1999-08-09 - 1999-08-12 1999.

Mathiesen, Svein Dish; Sørmo, Wenche; Utsi, Tove Aagnes; Sundset, Monica Alterskjær; Vader, Marit Arianne; Rædergård, V. B.; Tyler, N. J. C.. Comparative digestion in two-species of reindeer. The10th Arctic Ungulate Conference (data) (sammendrag) 1999-08-09 - 1999-08-13 1999.

Tyler, Nicholas; Øritsland, N. A.. Varig ustabilitet og bestandsregulering hos svalbardrein. Meddelelser / Norsk polarinstitutt 1999; Volum 150. ISSN 0373-5605.s 125 - 138.

Tyler, Nicholas. Recruitment stipend for young Saami. 1999.

Van Oort, B. E. H.; Stokkan, Karl-Arne; Reierth, E.; Tyler, Nicholas. Biological rhythms in Arctic vertebrates. 10th Arctic Ungulate Conference 1999-08-09 - 1999-08-12 1999.

Van Oort, B. E. H.; Stokkan, Karl-Arne; Tyler, Nicholas. Long-term patterns of activity in relation to photoperiod in free-ranging reindeer and sheep. 10th Arctic Ungulate Conference 1999-08-09 - 1999-08-12 1999.

Van Oort, B. E. H.; Stokkan, Karl-Arne; Van't Hof, T. J.; Tyler, Nicholas. Photoperiodic history and melatonin secretion in reindeer. 7th SRBR 2000-01-01 - 1999.

Storheier, P. V.; Mathiesen, S. D.; Tyler, Nicholas; Olsen, M. A.. Factors influencing the in vitro digestibility of lichens in reindeer. 10th Arctic Ungulate Conference 1999-08-09 - 1999-08-12 1999.

Mathiesen, S. D.; Sørmo, W. S.; Utsi, T. H. A.; Olsen, M. A.; Vader, Marit Arianne; Rædergård, V. B.; Tyler, Nicholas. Comparative digestion in two subspecies of reindeer. 10th Arctic Ungulate Conference 1999-08-09 - 1999-08-12 1999.

Tyler, Nicholas; Rædergård, V. B.; Vader, Marit Arianne. Early reproductive failure in female Svalbard reindeer in relation to age, fat and body mass. 10th Arctic Ungulate Conference 1999-08-09 - 1999-08-12 1999.

Tyler, Nicholas; Forchhammer, M. C.; Øritsland, N. A.. Persistent instability in Svalbard reindeer dynamics: tension between intrinsic and climatic processes. 10th Arctic Ungulate Conference 1999-08-09 - 1999-08-12 1999.

Van Oort, B. E. H.; Vik-Strønen, A.; Barnes, B. M.; Tobler, I.; Stokkan, Karl-Arne; Tyler, Nicholas. Activity loggers for reindeer. 4th International Deer Biology Congress 1998-01-01 - 1998.

Tyler, Nicholas. Reindeer pastures at disequilibrium. Pro-ceedings of the 4th International Deer Biology Congress 1998-01-01 - 1998.

Christiansen, H. R.; Johansen, O.; Tyler, Nicholas. Female reindeer grow fatter in winter. 4th International Deer Biology Congress 1998-01-01 - 1998.

Tyler, Nicholas. A World Catalogue of Reindeer Husbandry. Foredrag på Congress of World Reindeer Peoples 1997-03-01 - 1997.

Tyler, Nicholas. Reindeer Research: The Overgrazing Problem. Foredrag møte i Association of Reindeer Herders 1997-09-01 - 1997.

Mesteig, K.; Tyler, Nicholas; Blix, Arnoldus S. Heart Rate and Food Intake in Norwegian Reindeer. Experimental biology meeting (FASEB) 1997-01-01 - 1997.

Tyler, Nicholas. Reindeer studies in Svalbard: demography of reindeer in Adventdalen. 1996.

Christiansen, H. R.; Tyler, Nicholas; Johansen, O.. Bruker simler i Finnmark kroppsreserver om vinteren?. Reindriftsnytt : Boazodoallu-Oddasat 1996; Volum 3. ISSN 0333-4031.s 15 - 19.