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Publications

Total pubs: 114

Bromaghin, J. F., T. L. McDonald, and S. C. Amstrup. 2013. Plausible combinations: An improved method to evaluate the covariate structure of Cormack-Jolly-Seber mark-recapture models. Open Journal of Ecology 3:11-22. doi:10.4236/oje.2013.31002 [Details] [Full Publication]

Durner, G. M., K. S. Simac, and S. C. Amstrup. 2013. Mapping polar bear maternal denning habitat in the National Petroleum Reserve - Alaska with an IfSAR digital terrain model. Arctic 66(2):197-206. [Details] [Full Publication]

Pagano, A. M., G. M. Durner, S. C. Amstrup, K. S. Simac, and G. S. York. 2012. Long-distance swimming by polar bears (Ursus maritimus) of the southern Beaufort Sea during years of extensive open water. Canadian Journal of Zoology 90:663-676. doi:10.1139/z2012-033 [Details] [Full Publication]

Vongraven, D., J. Aars, S. C. Amstrup, S. N. Atkinson, S. E. Belikov, E. W. Born, T. D. DeBruyn, A. E. Derocher, G. M. Durner, N. J. Lunn, M. E. Obbard, J. Omelak, N. Ovsynikov, E. Peacock, E. S. Richardson, V. Sahanatien, I. Stirling, and Ø. Wiig. 2012. A circumpolar monitoring framework for polar bears. Ursus 23(sp2):1-66. doi:10.2192/URSUS-D-11-00026.1 [Details] [Full Publication]

Amstrup, S. C., G. M. Durner, A. S. Fischbach, K. S. Simac, and G. W. York. 2011. Polar Bear Research in the Beaufort Sea. Proceedings: Bear Taxanomic Group Workshop on Ursids in Captivity. American Zoological Society Annual Meeting. Detroit, MI, USA. [Details]

Durner, G. M., J. P. Whiteman, H. J. Harlow, S. C. Amstrup, E. V. Regehr, and M. Ben-David. 2011. Consequences of long-distance swimming and travel over deep-water ice for a female polar bear during a year of extreme sea ice retreat. Polar Biology 34:975-984. doi:10.1007/s00300-010-0953-2 [Details] [Full Publication]

Rode, K. D., S. C. Amstrup, and E. V. Regehr. 2010. Reduced body size and cub recruitment in polar bears associated with sea ice decline. Ecological Applications 20(3):768-782. doi:10.1890/08-1036.1 [Details] [Full Publication]

Durner, G. M., A. S. Fischbach, S. C. Amstrup, and D. C. Douglas. 2010. Catalogue of Polar Bear (Ursus maritimus) Maternal Den Locations in the Beaufort Sea and Neighboring Regions, Alaska, 1910-2010. USGS Data Series 568. [Details] [Full Publication]

Amstrup, S. C., E. T. DeWeaver, D. C. Douglas, B. G. Marcot, G. M. Durner, C. M. Bitz, and D. A. Bailey. 2010. Greenhouse gas mitigation can reduce sea-ice loss and increase polar bear persistence. Nature 468:955-958. doi:10.1038/nature09653 [Details] [Full Publication]

Amstrup, S. C., H. Caswell, E. T. DeWeaver, I. Stirling, D. C. Douglas, B. G. Marcot, and C. M. Hunter. 2009. Rebuttal of "Polar bear population forecasts: A public-policy forecasting audit". Interfaces 39(4):353-369. doi:10.1287/inte.1090.0444 [Details] [Full Publication]

Durner, G. M., D. C. Douglas, R. M. Nielson, S. C. Amstrup, T. L. McDonald, I. Stirling, M. Mauritzen, E. W. Born, Ø. Wiig, E. T. DeWeaver, M. C. Serreze, S. E. Belikov, M. M. Holland, J. Maslanik, J. Aars, D. A. Bailey, and A. E. Derocher. 2009. Predicting 21st-century polar bear habitat distribution from global climate models. Ecological Monographs 79(1):25-58. doi:10.1890/07-2089.1 [Details] [Full Publication]

Cronin, M. A., S. C. Amstrup, S. L. Talbot, G. K. Sage, and K. S. Amstrup. 2009. Genetic variation, relatedness, and effective population size of polar bears (Ursus maritimus) in the southern Beaufort Sea, Alaska. Journal of Heredity 100:681-690. [Details]

Bentzen, T. W., E. H. Follmann, S. C. Amstrup, G. S. York, M. J. Wooller, D. C. Muir, and T. M. O'Hara. 2008. Dietary biomagnification of organochlorine contaminants in Alaskan polar bears. Canadian Journal of Zoology 86:177-191. doi:10.1139/Z07-124 [Details] [Full Publication]

Amstrup, S. C., B. G. Marcot, and D. C. Douglas. 2008. A Bayesian network modeling approach to forecasting the 21st century worldwide status of polar bears. Pages 213-268 in Eric. T. DeWeaver, Cecilia M. Bitz, and L.-Bruno Tremblay Eds. Arctic Sea Ice Decline: Observations, Projections, Mechanisms, and Implications. Geophysical Monograph Series [Details] [Full Publication]

Smith, T. S., S. T. Partridge, S. C. Amstrup, and S. L. Schliebe. 2007. Post-den emergence behavior of polar bears (Ursus maritimus) in northern Alaska. Arctic 60(2):187-194. [Details]

Rode, K. D., S. C. Amstrup, and E. V. Regehr. 2007. Polar bears in the southern Beaufort Sea III: Stature, mass, and cub recruitment in relationship to time and sea ice extent between 1982 and 2006. USGS Administrative Report, 31 p. [Details]

Regehr, E. V., C. M. Hunter, H. Caswell, S. C. Amstrup, and I. Stirling. 2007. Polar bears in the southern Beaufort Sea I: Survival and breeding in relation to sea ice conditions, 2001-2006. USGS Administrative Report, 50 p. [Details]

Hunter, C. M., H. Caswell, M. C. Runge, E. V. Regehr, S. C. Amstrup, and I. Stirling. 2007. Polar bears in the southern Beaufort Sea II: Demography and population growth in relation to sea ice conditions. USGS Administrative Report, 51 p. [Details]

Durner, G. M., D. C. Douglas, R. M. Nielson, S. C. Amstrup, and T. L. McDonald. 2007. Predicting the future distribution of Polar Bear Habitat in the polar basin from resource selection functions applied to 21st century general circulation model projections of sea ice. USGS Administrative Report, 61 p. [Details]

Bergen, S., G. M. Durner, D. C. Douglas, and S. C. Amstrup. 2007. Predicting movements of female polar bears between summer sea ice foraging habitats and terrestrial denning habitats of Alaska in the 21st century: Proposed methodology and pilot assessment. USGS Administrative Report, 24 p. [Details]

Amstrup, S. C., B. G. Marcot, and D. C. Douglas. 2007. Forecasting the range-wide status of polar bears at selected times in the 21st century. USGS Administrative Report, 131 p. [Details] [Full Publication]

Fischbach, A. S., S. C. Amstrup, and D. C. Douglas. 2007. Landward and eastward shift of Alaskan polar bears denning associated with recent sea ice changes. Polar Biology 30:1395-1405. doi:10.1007/s00300-007-0300-4 [Details] [Full Publication]

Bentzen, T. W., E. H. Follmann, S. C. Amstrup, G. S. York, M. J. Wooller, and T. M. O'Hara. 2007. Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis. Canadian Journal of Zoology 85:596-608. doi:10.1139/Z07-036 [Details] [Full Publication]

Durner, G. M., S. C. Amstrup, and K. J. Ambrosius. 2006. Polar bear maternal den habitat on the Arctic National Wildlife Refuge, Alaska. Arctic 59(1):31-36. [Details] [Full Publication]

Amstrup, S. C., T. L. McDonald, B. F. J. Manly, and (eds.). 2006. Handbook of Capture-Recapture Analysis. Princeton University Press, NJ, USA. [Details]

Amstrup, S. C., G. M. Durner, T. L. McDonald, and W. R. Johnson. 2006. Estimating potential effects of hypothetical oil spills on polar bears. USGS Alaska Science Center, Anchorage, 64 p. [Details]

Amstrup, S. C. 2006. Future for polar bears in a declining sea ice environment: What do we know?. International Bear News 15(4):8-11. [Details]

Amstrup, S. C., I. Stirling, T. S. Smith, C. Perham, and G. W. Thiemann. 2006. Recent observations of intraspecific predation and cannibalism among polar bears in the southern Beaufort Sea. Polar Biology 29(11):997-1002. [Details]

Cronin, M. A., S. C. Amstrup, and K. T. Scribner. 2006. Microsatellite DNA and mitochondrial DNA variation in polar bears (Ursus maritimus) from the Beaufort and Chukchi seas, Alaska. Canadian Journal of Zoology 84:655-660. [Details]

Durner, G. M., S. C. Amstrup, G. S. York, E. V. Regehr, K. S. Simac, T. S. Smith, S. T. Partridge, T. W. Bentzen, K. S. Amstrup, and D. C. Douglas. 2006. Polar bear research in Alaska. Pages 77-100 in J. Aars, N. J. Lunn, and A. E. Derocher, (eds.). Proceedings of the 14th Working Meeting of the IUCN/SSC Polar Bear Specialist Group, 20-24 June 2005, Seattle, Washington. International Union for Conservation of Nature and Natural Resources, Gland, Switzerland. IUCN/SSC Occasional Paper 32. 198 p. [Details]

Durner, G. M., D. C. Douglas, R. M. Nielson, and S. C. Amstrup. 2006. A model for autumn pelagic distribution of adult female polar bears in the Chukchi Seas, 1987-1994. USGS Alaska Science Center, Anchorage. [Details]

Regehr, E. V., S. C. Amstrup, and I. Stirling. 2006. Polar bear population status in the southern Beaufort Sea. USGS Alaska Science Center, Anchorage. [Details]

Rah, H., B. B. Chomel, E. H. Follmann, R. W. Kasten, C. H. Hew, T. B. Farver, G. W. Garner, and S. C. Amstrup. 2005. Serosurvey of selected zoonotic agents in polar bears (Ursus maritimus). The Veterinary Record 156(1):7-13. [Details] [Full Publication]

Smith, T. S., S. C. Amstrup, and S. Herrero. 2005. The bear that never was. Alaska Magazine 71(7):22-27, 65. [Details]

Durner, G. M., S. C. Amstrup, G. York, E. V. Regehr, K. S. Simac, T. S. Smith, S. T. Partridge, T. W. Bentzen, K. S. Amstrup, and D. C. Douglas. 2005. Report on research progress in Alaska. Proceedings: 15th Annual meeting of joint commissioners and technical advisors of the Inuvialiut Game Council and North Slope Borough. Edmonton, Alberta, Canada. [Details]

Amstrup, S. C., G. M. Durner, I. Stirling, and T. L. McDonald. 2005. Allocating harvests among polar bear stocks in the Beaufort Sea. Arctic 58(3):247-259. [Details]

Amstrup, S. C., G. M. Durner, E. V. Regehr, G. W. York, K. S. Simac, T. S. Smith, S. T. Partridge, and D. C. Douglas. 2005. Polar Bear Research in the Beaufort Sea. February 2005, Edmonton, Alberta. Proceedings: Canadian Polar Bear Technical Committee. [Details]

Smith, T. S., S. T. Partridge, S. C. Amstrup, and S. L. Schliebe. 2005. Den site activity patterns of northern Alaska polar bears (Ursus maritimus). USGS Unpublished Report, 75 p. [Details]

McDonald, T. L., S. C. Amstrup, E. V. Regehr, and B. F. J. Manly. 2005. Examples. Pages 196-265 in S. C. Amstrup, T. L. McDonald, and B. F. J. Manly, (eds.), Handbook of Capture-Recapture Analysis. Princeton University Press, NJ, USA. [Details]

Manly, B. F. J., S. C. Amstrup, and T. L. McDonald. 2005. Capture-recapture methods in practice. Pages 266-275 in S. C. Amstrup, T. L. McDonald, and B. F. J. Manly, (eds.). Handbook of Capture-Recapture Analysis. Princeton University Press, NJ, USA. [Details]

Manly, B. F. J., T. L. McDonald, and S. C. Amstrup. 2005. Introduction to the handbook. Pages 1-21 in S. C. Amstrup, T. L. McDonald, and B. F. J. Manly, (eds.). Handbook of Capture-Recapture Analysis. Princeton University Press, NJ, USA. [Details]

Amstrup, S. C., G. M. Durner, E. V. Regehr, G. W. York, K. S. Simac, T. S. Smith, S. T. Partridge, and D. C. Douglas. 2004. Polar Bear Research in the Beaufort Sea. February 2004, Winnipeg, Manitoba. Proceedings: Canadian Polar Bear Technical Committee. [Details]

Amstrup, S. C., G. York, T. L. McDonald, R. L. Nielson, and K. S. Simac. 2004. Detecting denning polar bears with Forward-Looking Infrared (FLIR) imagery. BioScience 54:337-344. doi:10.1641/0006-3568(2004)054[0337:DDPBWF]2.0.CO;2 [Details] [Full Publication]

Amstrup, S. C., T. L. McDonald, and G. M. Durner. 2004. Using satellite radiotelemetry data to delineate and manage wildlife populations. Wildlife Society Bulletin 32(3):661-679. [Details]

Durner, G. M., S. C. Amstrup, R. Neilson, and T. L. McDonald. 2004. Using discrete choice modeling to generate resource selection functions for female polar bears in the Beaufort Sea. Pages 107-120 in S. Huzurbazar, (ed.) Resource Selection Methods and Applications. Proceedings: 1st Conference on Resource Selection Modeling, January 2003 Laramie, WY, USA. [Details]

Durner, G. M., S. C. Amstrup, R. Neilson, and T. L. McDonald. 2004. The use of sea ice habitat by female polar bears in the Beaufort Sea. US Geological Survey, Alaska Science Center, Anchorage, Alaska. MMS OCS Study 2004-014 [Details]

York, G., S. C. Amstrup, and K. S. Simac. 2004. Using Forward Looking Infrared (FLIR) imagery to detect polar bear maternal dens. Operations Manual. MMS OCS Study 2004-062. [Details]

Manly, B. F. J., T. L. McDonald, S. C. Amstrup, and E. V. Regehr. 2003. Improving size estimates of open animal populations by incorporating information on age. BioScience 53(7):666-669. [Details] [Full Publication]

Kern, J. W., T. L. McDonald, S. C. Amstrup, G. M. Durner, and W. P. Erickson. 2003. Using the bootstrap and fast Fourier transfrom to estimate confidence intervals of 2D kernel densities. Environmental and Ecological Statistics 10(4):405-418. [Details] [Full Publication]

Durner, G. M., S. C. Amstrup, and A. S. Fischbach. 2003. Habitat characteristics of polar bear terrestrial maternal den sites in northern Alaska. Arctic 56(1):55-62. [Details] [Full Publication]

Amstrup, S. C., G. M. Durner, A. S. Fischbach, G. W. York, K. S. Simac, T. S. Smith, S. T. Partridge, and D. C. Douglas. 2003. Polar Bear Research in the Beaufort Sea. February 2003, Edmonton, Alberta. Proceedings: Canadian Polar Bear Technical Committee. [Details]

Amstrup, S. C. 2003. Polar bear, Ursus maritimus. Chapter 27 in G. A. Feldham, B. Thompson, and J. A. Chapman, (eds.). Wild Mammals of North America. Second Edition. Johns Hopkins University Press [Details]

McDonald, T. L., S. C. Amstrup, and B. F. J. Manly. 2003. Tag loss can bias Jolly-Seber capture-recapture estimates. Wildlife Society Bulletin 31(3):814-822. [Details]

Amstrup, S. C., G. W. York, T. L. McDonald, R. Neilson, K. S. Simac, and G. M. Durner. 2003. Detecting denning polar bears with forward looking infra-red imagery (FLIR). Page 59 in Proceedings of the Ninth MMS Information Transfer Meeting. MMS OCS Study 2003-042, 118 p. [Details]

Durner, G. M., S. C. Amstrup, R. Neilson, and T. L. McDonald. 2003. The use of sea ice habitat by female polar bears in the Beaufort Sea. Pages 60-61 in Proceedings of the Ninth MMS Information Transfer Meeting. MMS OCS Study 2003-042, 118 p. [Details]

Amstrup, S. C., G. M. Durner, A. S. Fischbach, K. S. Simac, and G. W. York. 2002. Polar Bear Research in the Beaufort Sea. Pages 109-125 in edited by N. J. Lunn, S. Schliebe and E. W. Born, (eds.), Occasional Paper IUCN Specialists Survey Commission 26. Proceedings: 13th Working Meeting of the IUCN/SSC Polar Bear Specialist Group, 23-28 June 2001. Nuuk, Greenland. [Details]

Amstrup, S. C. 2002. Polar Bears. Pages 65-70 in D. C. Douglas, P. E. Reynolds, and E. B. Rhode, (eds.). Arctic refuge coastal plain terrestrial wildlife research summaries. USGS Biological Science Report USGS/BRD/BSR-2002-0001 [Details]

Durner, G. M., S. C. Amstrup, A. S. Fischbach, G. S. York, and K. S. Simac. 2002. Polar bear research in the Beaufort Sea. Proceedings: Canadian Polar Bear Technical Committee, 9-10 Feb 2002. Iqualuit, Canada. [Details]

Amstrup, S. C., G. M. Durner, and T. L. McDonald. 2002. Volume III, Appendix J 1, Liberty Development and Production Plan. Draft Environmental Impact Statement. Minerals Management Service, Alaska Outer Continental Shelf Region OCS EIS/EA MMS 2001-001. [Details]

Amstrup, S. C., G. M. Durner, A. S. Fischbach, K. S. Simac, and G. W. York. 2002. Polar Bear Research in the Beaufort Sea. Proceedings of the Bear Taxanomic Group Workshop on Ursids in Captivity. Annual Meeting of the American Zoological Society, Detroit, MI, April 27 - 29, 2001. [Details]

McDonald, T. L. and S. C. Amstrup. 2001. Estimation of population size using open capture-recapture models. Journal of Agricultural, Biological, and Environmental Statistics 6:206-220. [Details]

Durner, G. M., S. C. Amstrup, and T. L. McDonald. 2001. Estimating the impacts of oil spills on polar bears. Arctic Research of the United States 14:33-37. [Details]

Durner, G. M., S. C. Amstrup, and K. J. Ambrosius. 2001. Remote identification of polar bear maternal den habitat in northern Alaska. Arctic 54:115-121. [Details]

Amstrup, S. C., T. L. McDonald, and I. Stirling. 2001. Polar bears in the Beaufort Sea: A 30 year mark-recapture case history. Journal of Agricultural, Biological, and Environmental Statistics 6:221-234. [Details]

Amstrup, S. C., G. M. Durner, T. L. McDonald, D. M. Mulcahy, and G. W. Garner. 2001. Comparing movement patterns of satellite-tagged male and female polar bears. Canadian Journal of Zoology 79:2147-2158. [Details]

Simac, K. S., S. C. Amstrup, G. W. York, T. L. McDonald, R. M. Friedman, and A. S. Fischbach. 2001. Forward looking infrared (FLIR): a new method for detecting maternal polar bear dens. Society for Marine Mammalogy, Abstracts, 14th Biennial Conference on the Biology of Marine Mammals, November 28 - December 3, 2001. Vancouver, B.C., Canada. [Details]

Amstrup, S. C. 2000. Polar Bear. Pages 133-157 in J. J. Truett and S. R. Johnson, (eds.). The Natural History of an Arctic Oil Field: Development and Biota. Academic Press, Inc, New York City, NY, USA. [Details]

Amstrup, S. C., G. M. Durner, I. Stirling, N. J. Lunn, and F. Messier. 2000. Movements and distribution of polar bears in the Beaufort Sea. Canadian Journal of Zoology 78:948-966. [Details]

Cronin, M. A., S. C. Amstrup, G. M. Durner, L. E. Noel, T. L. McDonald, and W. B. Ballard. 2000. Caribou distribution during the post-calving period in relation to infrastructue in the Prudhoe Bay Oil Field, Alaska. Arctic 51(2):85-93. [Details]

Fischbach, A. S., D. Burn, and S. C. Amstrup. 1999. Modeling the southern Beaufort Sea polar bear stock. Focus on the Future- Alaska Environmental Studies. Proceedings: Alaska OCS Region Information Transfer Meeting. [Details]

Paetkau, D., S. C. Amstrup, E. W. Born, W. Calvert, A. E. Derocher, G. W. Garner, F. Messier, I. Stirling, M. Taylor, Ø. Wiig, and C. Strobeck. 1999. Genetic structure of the world's polar bear populations.. Molecular Ecology 8:1571-1584. [Details]

Garner, G. W., S. C. Amstrup, J. L. Laake, B. F. J. Manly, L. L. McDonald, D. G. Robertson, and (eds.). 1999. Marine Mammal Survey and Assessment Methods. A. A. Balkema, Leiden, Netherlands. [Details]

Amstrup, S. C. and G. M. Durner. 1999. Polar Bear Research in the Beaufort Sea. Pages 131-139 in A. E. Derocher, (ed.), Occasional Paper IUCN Specialists Survey Commission 19. Proceedings: IUCN/SSC Polar Bear Specialist Group [Details]

Amstrup, S. C. and G. M. Durner. 1999. Polar bear research in the Beaufort Sea. Proceedings: Canadian Polar Bear Technical Committee. [Details]

Amstrup, S. C. and G. M. Durner. 1998. Polar bear research in the Beaufort Sea. Pages 47-52 in Proceedings: Canadian Polar Bear Technical Committee [Details]

Amstrup, S. C. and G. M. Durner. 1998. Polar bear research in the Beaufort Sea. Pages 131-139 in A. E. Derocher, G. W. Garner, N. J. Lunn, and O. Wiig, (eds.). International Union for Conservation of Nature and Natural Resources, Gland, Switzerland. IUCN/SSC Occasional Paper 19. 159 pp. Proceedings: 12th Working Meeting of the IUCN/SSC Polar Bear Specialist Group Oslo, Norway. [Details]

Amstrup, S. C. and G. M. Durner. 1998. Identification of polar bear den habitat in northern Alaska. Pages 141-145 in A. E. Derocher, G. W. Garner, N. J. Lunn, and O. Wiig, (eds.). International Union for Conservation of Nature and Natural Resources, Gland, Switzerland. IUCN/SSC Occasional Paper 19. 159 pp. Proceedings: 12th Working Meeting of the IUCN/SSC Polar Bear Specialist Group Oslo, Norway. [Details]

Amstrup, S. C., T. L. McDonald, and I. Stirling. 1998. Estimating survival rates and population sizes of polar bears with logistic models. Proceedings: World Marine Mammal Science Conference. [Details]

Scribner, K. T., G. W. Garner, S. C. Amstrup, and M. A. Cronin. 1997. Population genetic studies of the polar bear (Ursus maritimus): a summary of available data and interpretation of results. Marine Mammal Science Special Publication:191-202. [Details]

Bethke, R., M. Taylor, S. C. Amstrup, and F. Messier. 1996. Population delineation of polar bears using satellite collar data. Ecological Applications 6(1):311-317. [Details]

Durner, G. M. and S. C. Amstrup. 1996. Mass and body-dimension relationships of polar bears in northern Alaska. Wildlife Society Bulletin 24(3):480-484. [Details]

Durner, G. M. and S. C. Amstrup. 1995. Movements of a polar bear from northern Alaska to northern Greenland. Arctic 48(4):338-341. [Details]

Amstrup, S. C. 1995. Movements, distribution, and population dynamics of polar bears in the Beaufort Sea. Dissertation, University of Alaska, Fairbanks, USA, 299 p. [Details]

Amstrup, S. C. and G. M. Durner. 1995. Survival rates of radio-collared female polar bears and their dependent young. Canadian Journal of Zoology 73:1312-1322. [Details]

Amstrup, S. C. and G. M. Durner. 1995. Polar Bear Research in the Beaufort Sea. Proceedings: 11th Working Meeting of the IUCN/SSC Polar Bear Specialist Group. [Details]

Amstrup, S. C. and C. L. Gardner. 1994. Polar bear maternity denning in the Beaufort Sea. Journal of Wildlife Management 58(1):1-10. [Details]

Amstrup, S. C. 1993. Human disturbances of denning polar bears in Alaska. Arctic 46(3):246-250. [Details]

Amstrup, S. C., G. W. Garner, M. A. Cronin, and J. C. Patton. 1993. Sex identification of polar bears from blood and tissue samples. Canadian Journal of Zoology 71:2174-2177. [Details]

Bruce, D. S., D. L. Ambler, T. M. Henschel, P. R. Oeltgen, S. P. Nilekani, and S. C. Amstrup. 1992. Suppression of guinea pig ileum induced contractility by plasma albumin of hibernators. Pharmacology Biochemistry and Behavior 43:199-203. [Details]

Amstrup, S. C. and G. M. Durner. 1992. Temporal and geographic variation of maternity denning among polar bears of the Beaufort Sea. US Fish and Wildlife Service, Pages 198-206 in T. R. Mc Cabe, B. Griffith, N. E. Walsh, and D. D. Young, (eds.). Terrestrial Research: 1002 area - Arctic National Wildlife Refuge, Interim Report, 1988-1990, 432 p. [Details]

Amstrup, S. C. and G. M. Durner. 1992. Polar bear maternity denning on the Arctic National Wildlife Refuge, Alaska. US Fish and Wildlife Service, Pages 189-197 in T. R. Mc Cabe, B. Griffith, N. E. Walsh, and D. D. Young, (eds.). Terrestrial Research: 1002 area - Arctic National Wildlife Refuge, Interim Report, 1988-1990, 432 p. [Details]

Amstrup, S. C. and G. M. Durner. 1992. Responses of maternal polar bears to human activities in Alaska. US Fish and Wildlife Service, Pages 198-206 in T. R. Mc Cabe, B. Griffith, N. E. Walsh, and D. D. Young, (eds.). Terrestrial Research: 1002 area - Arctic National Wildlife Refuge, Interim Report, 1988-1990, 432 p. [Details]

Cronin, M. A., S. C. Amstrup, G. W. Garner, and E. R. Vyse. 1991. Inter- and intraspecific mitochondrial DNA variation in North American bears (Ursus). Canadian Journal of Zoology 69:2985-2992. [Details]

Harris, R. B., S. G. Fancy, D. C. Douglas, G. W. Garner, S. C. Amstrup, T. R. McCabe, and L. F. Pank. 1990. Tracking wildlife by satellite: Current systems and performance. US Fish and Wildlife Service(30), 52 p. [Details] [Full Publication]

Bruce, D. S., N. K. Darling, K. J. Seeland, P. R. Oeltgen, S. P. Nilekani, and S. C. Amstrup. 1990. Is the polar bear (Ursus maritimus) a hibernator? Continued studies on opioids and hibernation. Pharmacology Biochemistry and Behavior 35(3):705-711. [Details]

Bruce, D. S., N. K. Darling, K. J. Seeland, P. R. Oeltgen, and S. C. Amstrup. 1990. Does the polar bear (Ursus maritimus) hibernate? Continued studies on opioids and hibernation. Federation of American Societies for Experimental Biology Journal 3(988):A396. [Details]

Bruce, D. S., N. K. Darling, K. J. Seeland, P. R. Oeltgen, S. P. Nilekani, and S. C. Amstrup. 1990. Continued studies on opiods and hibernation: Does the polar bear (Ursus maritimus) hibernate?. Proceedings: Living in the Cold II. Strasbourg, France. [Details]

Amstrup, S. C., C. L. Gardner, K. C. Myers, and F. W. Oehme. 1989. Ethylene glycol (antifreeze) poisoning in a free-ranging polar bear. Veterinary and Human Toxicology 31(4):317-319. [Details]

Amstrup, S. C. and C. L. Gardner. 1989. Philopatry in maternal denning of polar bears in the Beaufort Sea. Pages 2 in Proceedings: 8th Biennial Conference on the Biology of Marine Mammals Pacific Grove, CA, USA. [Details]

Amstrup, S. C. and C. A. Nielsen. 1989. Acute gastric dilatation and volvulus in a free-ling polar bear. Journal of Wildlife Diseases 25(4):601-604. [Details]

Garner, G. W., S. C. Amstrup, D. C. Douglas, and C. L. Gardner. 1989. Performance and utility of satellite telemetry during field studies of free-ranging polar bears in Alaska. Pages 67-76 in Proceedings: 10th International Symposium on Biotelemetry [Details]

Schell, D. M. and S. C. Amstrup. 1989. Oceanic gradients in stable isotope ratios and application to marine mammal studies. Pages 60 in Proceedings: 8th Biennial Conference on the Biology of Marine Mammals Pacific Grove, CA, USA. [Details]

Fancy, S. G., R. B. Harris, D. C. Douglas, L. F. Pank, K. R. Whitten, T. R. McCabe, S. C. Amstrup, and G. W. Garner. 1988. Applications of Satellite Telemetry to Wildlife Research and Management in Alaska. Pages 5-12 in Ate du colloque international: Suivi des vertebres terrestres par radiotelemetrie. Principality of Monaco [Details]

Fancy, S. G., L. F. Pank, D. C. Douglas, C. H. Curby, G. W. Garner, S. C. Amstrup, and W. L. Regelin. 1988. Satellite Telemetry: A new tool for wildlife research and management. US Fish and Wildlife Service(172), 55 p. [Details] [Full Publication]

Amstrup, S. C. and D. P. DeMaster. 1988. Polar Bear. Selected Marine Mammals of Alaska:39-56. [Details]

Fancy, S. G., L. F. Pank, D. C. Douglas, C. H. Curby, G. W. Garner, S. C. Amstrup, and W. L. Regeli. 1988. Development and evaluation of a system for tracking wildlife by satellite. Proceedings: 2nd International Symposium on Nutrition of Herbivores. Brisbane, Australia. [Details]

Amstrup, S. C. 1987. Marine denning of polar bears in Alaska. Pages 2 in Proceedings: 7th Biennial Conference on the Biology of Marine Mammals, 5-9 Dec 1987 Miami, FL, USA. [Details]

Kelly, B. P., S. C. Amstrup, C. L. Gardner, and L. T. Quakenbush. 1987. Predation on ringed seals in the western Beaufort Sea. Proceedings: 7th Biennial Conference on the Biology of Marine Mammals, 5-9 Dec 1987. Miami, FL, USA. [Details]

Amstrup, S. C. 1986. Polar Bear. The National Audubon Society, Audubon Wildlife Report. [Details]

Amstrup, S. C., I. Stirling, and J. Lentfer. 1986. Past and present status of polar bears in Alaska. Wildlife Society Bulletin 14:241-254. [Details]

Amstrup, S. C. 1986. Research on polar bears in Alaska, 1983-1985. Pages 85-115 in Proceedings: 9th Working Meeting of the IUCN/SSC Polar Bear Specialist Group, 9-11 Aug 1985 Edmonton, Canada. [Details]

Amstrup, S. C. 1982. Polar bear research in Alaska, Spring 1982. US Fish and Wildlife Service Unpublished Report, 92 p. [Details]

Amstrup, S. C. 1981. Polar bear research in Alaska, Spring 1981. US Fish and Wildlife Service Unpublished Report, 42 p. [Details]

Amstrup, S. C. 1981. Research on Alaskan polar bears in 1979 and 1980. Pages 119-124 in Proceedings: 8th Working Meeting of the IUCN/SSC Polar Bear Specialist Group, 15-19 Jan 1981 Oslo, Norway. [Details]

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