Effects of weather and snow conditions on reproduction and survival of semi-domesticated reindeer (R. t. tarandus)

References

• Aanes, R., Szether, B.-E. & Oritsland N. A. 2000: Fluctua-tions of an introduced population of Svalbard reindeer: the effects of density dependence and climatic variation. Ecog-raphy 23, 437–443.
   Web of Science ®Google Scholar
• Adamczewski, J. Z., Gates, C. C., Soutar, B. M. & Hudson, R. J. 1988: Limiting effects of snow on seasonal habitat use and diets of caribou (Rangifer tarandus groenlandi-cus) on Coats Island, Northwest Territories, Canada. Can. J. Zool.66, 1986–1996.
   Web of Science ®Google Scholar
• Adams L. G. & Dale B. W. 1998: Reproductive perform-ance of female Alaskan caribou. J Wildl. Manage. 62, 1184–1195.
   Web of Science ®Google Scholar
• Alpe, M. J., Kingery, J. M. & Mosley, J. C. 1999: Effects of summer sheep grazing on browse nutritive quality in autumn and winter. J. Wildl. Manage. 63, 346–354.
   Web of Science ®Google Scholar
• Augustine, D. J., Frelich, L. E. & Jordan, P. A. 1998: Evi-dence for two alternate stable states in an ungulate grazing system. Ecol. Appl. 8, 1260–1269.
   Web of Science ®Google Scholar
• Behnke, R. H. & Scoones, I. 1992: Rethinking range ecology: implications for rangeland management in Africa. Int. Inst. Environ. Dev. Pap. 33.
   Google Scholar
• Crete, M. & Doucet, G. J. 1998: Persistent suppression in dwarf birch after release from heavy summer browsing by caribou. Arct. Alp. Res. 30, 126–132.
   Web of Science ®Google Scholar
• Ellis, J. E., Coughenour, M. B. & Swift, D. M. 1991: Cli-mate variability, ecosystem stability, and the implications for range and livestock development. In R.H. Behnke et al. (eds.): Range ecology at disequilibrium: new models of nat-ural variability and pastoral adaption in African savannas. Pp. 31-41. London: Overseas Development Institute.
   Google Scholar
• Fynn, R. W. S. & O'Connor, T. G. 2000: Effect of stocking rate and rainfall on rangeland dynamics and cattle per-formance in a semi-arid savanna, South Africa. J. Appl. Ecol. 37 491–507.
   Web of Science ®Google Scholar
• Helle, T. 1980: Laiduntilanteen muutokset ja riskinotto Suomen porotaloudessa. (Changes in the state of grazing areas and risk-taking in Finnish reindeer management. In Finnish with English summary.) Lapin tutkimusseuran vuosikirja XXI, 13-22.
   Google Scholar
• Helle, T. & Saastamoinen, L. 1979: The winter use of food resources of semi-domestic reindeer in northern Finland. Commun. Inst. For. Fenn. 95, 1–26.
   Google Scholar
• Helle, T. & Tarvainen, L. 1984: Effects of insect harassment on weight gain and survival of reindeer calves. Rangifer 4, 24–27.
   Google Scholar
• Helle, T. & Kojola, I. 1993: Reproduction and mortality of Finnish semi-domesticated reindeer in relation to density and management strategies. Arctic 46, 72–77.
   Web of Science ®Google Scholar
• Helle, T. & Kojola, I. 1994: Body mass variation in semi-domesticated reindeer. Can. J Zool. 72, 681–688.
   Web of Science ®Google Scholar
• Helle, T., Kojola, I. & Timonen, M. 2001: Lumipeitteen vai-kutus Käsivarren porolukuihin: mikä on Pohjois-Atlantin säävaihtelun (NAO) merkitys? (Impact of snow cover on the reindeer population in Käsivarsi, NW Finland: Is the North Atlantic Oscillation (NAO) involved? In Finnish with English summary.) Suom. Riista 47, 75–85.
   Google Scholar
• Henry, G. H. R. & Gunn, A. 1991: Recovery of tundra vegeta-tion after overgrazing by caribou in Arctic Canada. Arctic 44, 38–42.
   Web of Science ®Google Scholar
• Klein, D. R. 1968: The introduction, increase, and crash of rein-deer on St. Matthew Island. J Wildl. Manage. 32, 350-367. Kojola, I. & Helle, T. 1993: Calf harvest and reproductive rate of reindeer in Finland. J Wildl. Manage. 5Z 451-453. Kojola, I., Helle, T., Niskanen, M. & Aikio, P. 1995: Effects of lichen biomass on winter diet, body mass and reproduction of semi-domesticated reindeer Rangifer t. tarandus in Fin-land. Wildl. Biol. 1, 33–38.
   Google Scholar
• Kumpula, J. 2001a: Productivity of the semi-domesticated reindeer (Rangifer t. tarandus L.) stock and carrying capacity of pastures in Finland during 1960-1990's. Acta Universitatis Ouluensis A 375, Scientiae Rerum Naturalium. Ph.D. thesis, University of Oulu.
   Google Scholar
• Kumpula, J. 2001b: Winter grazing of reindeer in woodland lichen pasture: effect of lichen availability on the condition of reindeer. Small Ruminant Res. 39, 121–130.
   PubMed Web of Science ®Google Scholar
• Kumpula, J., Colpaert, A. & Nieminen, M. 1998: Reproduc-tion and productivity of semi-domesticated reindeer in northern Finland. Can. J. Zool. 76, 269–277.
   Google Scholar
• Kumpula, J., Colpaert, A. & Nieminen, M. 2000: Condition, potential recovery rate, and productivity of lichen (Clado-nia spp.) ranges in the Finnish reindeer management area. Arctic 53, 152–160.
   Web of Science ®Google Scholar
• Kumpula, J., Colpaert, A. & Nieminen, M. 2002: Productivity factors of the Finnish semi-domesticated reindeer (Rangif-er t. tarandus) stock during the 1990s. Rangifer 22, 47–56.
   Google Scholar
• Kumpula, J. & Nieminen, M. 1992: Pastures calf production and carcass weights of reindeer calves in the Oraniemi co-operative, Finnish Lapland. Rangifer 12, 93–104.
   Google Scholar
• Kumpula, J., Parikka, P. & Nieminen, M. 2000: Occurence of certain microfungi on reindeer pastures in northern Fin-land during winter 1996-97. Rangifer 20, 3–8.
   Google Scholar
• Leader-Williams, N., Smith, R. I. L. & Rothery, P. 1987: Influ-ence of introduced reindeer on the vegetation of South Georgia: results from a long-term exclusion experiment. J. Appl. Ecol. 24, 801–822.
   Web of Science ®Google Scholar
• Loison, A., Langvatn, R. & Solberg, E. J. 1999: Body mass and winter mortality in red deer calves: disentangling sex and climate effects. Ecography 22, 20–30.
   Web of Science ®Google Scholar
• Manseau, M., Huot, J. & Crete, M. 1996: Effects of summer grazing by caribou on composition and productivity of veg-etation: community and landscape level. J. Ecol. 84, 503–513.
   Web of Science ®Google Scholar
• Messier, F. 1991: On the concepts of population limitation and population regulation as applied to caribou demography. In C. E. Butler & S. P. Mahoney ( eds.): Proceedings of the Fourth North American Caribou Workshop. Pp. 260-277. St. John's: Newfoundland Labrador Wildlife Division.
   Google Scholar
• Milner, J. M., Elston, D. A. & Albon, S. D. 1999: Estimating the contributions of population density and climatic fluctu-ations to interannual variation in survival of Soay sheep. J. Anim. Ecol. 68, 1235–1247.
   Web of Science ®Google Scholar
• Moxnes, E., Danell, O., Gaare, E. & Kumpula, J. 2001: Opti-mal strategies for the use of reindeer rangelands. Ecol. Model. 145, 225–241.
   Web of Science ®Google Scholar
• Mörschel, F. M. 1999: Use of climatic data to model the pres-ence of oestrid flies in caribou herds. J. Wildl. Manage. 63, 588–593.
   Web of Science ®Google Scholar
• Mörschel, F. M. & Klein, D. R. 1997: Effects of weather and parasitic insects on behaviour and group dynamic of car-ibou of the Delta Herd, Alaska. Can. J. Zool. 75, 1659–1670.
   Web of Science ®Google Scholar
• Murdock, W. W. 1994: Population regulation in theory and practice. Ecology 75, 271–287.
   Google Scholar
• Mysterud, A., Yoccoz, N. G., Stenseth, N. C. & Langvatn, R. 2000: Relationships between sex ratio, climate and density in red deer: the importance of spatial scale. J. Anim. Ecol. 69, 959–974.
   Web of Science ®Google Scholar
• Ouellet, J.-P., Heard, D. C., Boutin, S. & Mulders R. 1997: A comparison of body condition and reproduction of caribou on two predator-free islands. Can. J Zool. 75, 11–17.
   Web of Science ®Google Scholar
• Portier, C., Festa-Bianchet, M., Gaillard, J.-M., Jorgenson, J. T. & Yoccoz, N. G. 1998: Effects of density and weather on survival of bighorn sheep lambs (Ovis canadensis). I Zool. 245, 271–278.
   Google Scholar
• Post, E. & Stenseth, N. C. 1998: Large-scale climatic fluctu-ation and population dynamics of moose and white-tailed deer. J. Anim. Ecol. 67, 537–543.
   Web of Science ®Google Scholar
• Post, E. & Stenseth, N. C. 1999: Climatic variability, plant phe-nology, and northern ungulates. Ecology 80, 1322–1339.
   Web of Science ®Google Scholar
• Reimers, E. 1982: Winter mortality and population trends of reindeer on Svalbard, Norway. Arct. Alp. Res. 14, 295–300.
   Web of Science ®Google Scholar
• Sæther, B.-E. 1997: Environmental stochasticity and popu-lation dynamics of large herbivores: a search for mecha-nisms. Trends Evol. Ecol. 12, 143–149.
   PubMed Web of Science ®Google Scholar
• Skogland, T 1985: The effects of density dependent resource limitations on demography of wild reindeer. J. Anim. Ecol. 54, 359–374.
   Web of Science ®Google Scholar
• Skogland, T. 1986: Density dependent food limitation and maximal production in wild reindeer herds. J. Wildl. Manage. 50, 314–319.
   Web of Science ®Google Scholar
• Turchin, P. 1995: Population regulation: old arguments and a new synthesis. In N. Cappuccino & P. W. Price (eds.): Population dynamics. Pp. 19-40. San Diego, CA: Aca-demic Press.
   Google Scholar