Altman, J. 1974. Observational study of behavior: sampling methods. Behavior 49:227-267.
Albon, S. D., B. Mitchell, B. J. Huby, and D. Brown. 1986. Fertility in female red deer (Cervus elaphus): the effects of body composition, age and reproductive status. Journal of Zoology, London. 209:447-460.
American Society of Mammalogists. 1998. Animal care and use committee. Guidelines for the capture, handling and care of mammals as approved by the American Society of Mammalogists. Journal of Mammalogy 79:1416-1431.
Anderson, R. 1971. Effect of human disturbance on Dall sheep. Alaska Cooperative Wildlife Unit Quarterly Report 22:23-27.
Ayres, L. A. 1986. The movement patterns and foraging ecology of Dall’s sheep (Ovis dalli dalli) in the Noatak National Preserve, Alaska. M.S. Thesis. Univ. of Calif. Berkeley, Calif. 94 pp.
Berger, J. D. Daneke, J. Johnson, and S. H. Berwick. 1983. Pronghorn foraging economy and predator avoidance in a desert ecosystem: implications for the conservation of large mammalian herbivores. Biological Conservation 25:193-208.
Bleich, V.C., R.T. Bowyer, A.M. Pauli, M.C. Nicholson, and R.W. Anthes. 1994. Mountain sheep Ovis canadensis and helicopter surveys: ramifications for the conservation of large mammals. Biological Conservation 70:1-7.
Bleich, V.C., R.T. Bowyer, and J.W. Wehausen. 1997. Sexual segregation in mountain sheep: resources or predation? Wildlife Monograph 134: 1-50.
Boudreau T.A. 1996. Units 20B, 20F, and 25C. Pages 107-113 in M.V. Hicks editor. Report of survey-inventory acitvities 1 July 1992 – 30 June 1995. Dall Sheep. Alaska Department of Fish and Game, Division of Wildlife Conservation. Federal aid in wildlife restoration management 166 pp.
Brundige, G.C., L.J. Layne, T.R. McCabe. 1988. Early pregnancy determination using serum progesterone concentration in bighorn sheep. Journal of Wildlife Management 52:610-612.
Bunnel, F. L, and N.A. Olsen. 1976. Weights and growth of Dall sheep in Kluane Park and Reserve, Yukon Territory. Canadian Field Naturalist 90:157-162.
Burch, J. and N. Demma. 1998. Ecology and demography of Dall sheep and identifying critical Dall sheep habitat and habitat use patterns to mitigate the impacts of military low-level flight operations. National Park Service Progress report. Yukon-Charley Rivers National Preserve. 36pp.
Burch, J. and J. Lawler. 2001. Ecology and demography of Dall’s sheep in Yukon-Charley Rivers National Preserve: identifying critical Dall’s sheep habitat and habitat use patterns. Technical Report NPS/AR/NRTR-2001/39. National Park Service, Anchorage Alaska. 82 pp.
Budescu, D.V., and M.I. Appelbaum. 1981. Variance stabilizing transformations and the power of the F test. Journal of educational and behavioral statistics. 6:55-74.
Cameron, R. D., W. T. Smith, S.G. Fancy, K.L. Gerhardt, and R.G. White. 1993. Calving success of female caribou in relation to body weight. Canadian Journal of Zoology. 71:480-486.
Chapman, D.G. 1951. Some properties of the hypergeometric distribution with applications to zoological sample censuses. Univ. Calif. Publ. Stat. 1:131-160.
Davis, J.L., P. Valkenburg, and R.D. Bortje. 1985. Disturbance and the Delta caribou herd. Pages 2-6 in AM Martell and DE Russell (eds.). Proceedings of the First North American Caribou Workshop, Whitehorse Y.T., 1983. Canadian Wildlife Service Publication, Ottawa.
Department of the Air Force. 1992. Environmental Assessment of the expansion and upgrade of military training routes, Alaska. Elmendorf Air Force Base, AK.
_____. 1995. Final Environmental Impact Statement, Alaska Military Operation Areas. Eleventh Air Force, Elmendorf Air Force Base, AK.
_____. 1997. Final Environmental Impact Statement, Alaska Military Operation Areas, Record of Decision. Eleventh Air Force, Elmendorf Air Force Base, AK. 42 pp.
_____. 2002. 11th Air Force Noise/Flight Sensitive Areas List. Effective: 1 August 2002. Eleventh Air Force, Elmendorf Air Force Base, AK. 13 pp.
Ducks Unlimited, Inc. 1998. Yukon-Charley/Black River/40mile earth cover classification. Users guide. Ducks unlimited project number AK-0024-22-002. BLM agreement number 1422-D910-A4-0205.
Durtsche B.W., W. Hobgood, and J.Burris. 1990. Distribution, movements and seasonal use areas of radio-tagged Dall sheep in the White Mountains-Tanana Hills, Alaska, 1983-1989. Bureau of Land Mangement, Open File Report 30, Sept 1990. Anchorage, AK 10 pp.
Fancy, SG and RG White. 1985. Incremental cost of activity. Pages 143-159 in RJ Hudson and RG White (eds.). Bioenergetics of wild herbivores. CRC Press, inc. Boca Raton, Florida.
Federal Aviation Administration. 1995. Notice to establish special use airspace military operations areas. Aeronautical study No. 95-AAL-042NR. Anchorage, AK.
Feist, J., McCrory, W. and H. Russel. 1974. Distribution of Dall sheep in the Mount Goodenough area, Northwest Territories. in: K.H. McCourt and L.P. Horstman, eds. Studies of Large Mammal Populations in Northern Alaska, Yukon, and Northwest Territories, 1973. Renewable Resources Consulting Services, Ltd., Canadian Arctic Gas Study Biological Report No. 22.
Furlow, R.C., M. Haderlie, and R. Van De Berge. 1981. Estimating a bighorn sheep population by mark-recapture. Desert Bighorn Council Trans. 25:31-33.
Frid, A. 1994. Vigilance while feeding by female Dall’s sheep (Ovis dalli dalli Nelson, 1884): interactions among predation risk factors. M.S. thesis. Univ. of British Columbia, Vancouver, British Columbia. 38 pp.
_____. 1995. Dall’s sheep of the Killermun Lake Region: ecological and behavioral data in relation to mineral exploration. Report submitted to Yukon Fish & Wildlife and Archer Cathro & Associates LTD, Whitehorse, YT.
_____. 1997. Vigilance by female Dall’s sheep: interactions between predation risk factors. Animal Behavior 53:799-808.
_____. 1998. Responses to helicopter disturbance by Dall’s sheep: determinants of escape decisions. Prepared for the Yukon Fish and Wildlife Branch, Department of Renewable Resources. Boreal Resource Associates, Whitehorse, Yukon Territory, Canada. 36 pp.
_____. 2003. Dall’s sheep responses to overflights by helicopter and fixed-wing aircraft. Biological Conservation 110:387-399.
_____, and L. Dill. 2002. Human-caused disturbance stimuli as a form of predation risk. Conservation Ecology 6:11.
Geist, V. 1971. Mountain sheep: a study in behavior and evolution. Chicago: University of Chicago Press. 383 pp.
_____. 1975. On the management of mountain sheep: theoretical considerations. Pages 77-105. In J.B. Trefethen, editor. The wild sheep in modern North America. The Boone and Crockett Club and Winchester Press, New York, N.Y.
Gerhart, K.L., R.G. White, R.D. Cameron, and D.E. Russell. 1996. Estimating fat content of caribou from body condition scores. Journal of Wildlife Management 60:713-718.
Harrington, F.H., and A.M. Veitch. 1992. Calving success of woodland caribou exposed to low-level jet fighter overflights. Arctic 45:213-218.
_____, and _____. 1991. Short –term impacts of low-level jet fighter training on caribou in Labrador. Arctic 44:318-327.
Heimer, W.E. 1972. In L. Nichols and W. Heimer, editors, sheep report. Alaska Department of Fish and Game, Fed. Aid Wildl. Restor. Annu. Proj. Prog. Rep. Vol. 13.
Heimer, W.E. 1973. Dall sheep movements and mineral lick use. Alaska Department of Fish and Game, Fed. Aid. Wildl. Restor. Final Report.
Hoefs, M., and I.M. Cowan. 1979. Ecological investigation of a population of Dall sheep (Ovis dalli dalli Nelson). Syesis 12, Suppl. I. 81 pp.
Janssen, R. 1980. Future scientific activities in effects of noise on animals. American Speech-Language-Hearing Association Report Number 10.
Johnson, R.A. and D.W. Wichern. 1992. Applied multivariate statistical analysis. Prentice Hall, New Jersey, 642 pp.
King, M.M. and G.W. Workman. 1986. Response of desert bighorn sheep to human harassment: management implications. Transactions of the North American Wildlife and Natural Resources Conference. 51:74-85.
Kleckner, C., L.G. Adams, B. Shults, and M.S. Udevitz. 2002. Abundance and demography of Dall sheep in the Baird Mountains, Noatak National Preserve, Alaska; Component: population demographics. Annual Progress Report, Alaska Biological Science Center, U.S. Geological Survey, Anchorage, Alaska, USA.
Klein, D.R. 1973. The reactions of some northern ungulates to aircraft disturbance. Proceedings International Congress of Game Biologists. XIth:377-383.
Krausman, P.R., L.K. Harris, and J. Francine. 2001. Noise effects of military overflights on Sonoran pronghorn. Air Force Center for Environmental Excellence. Contract F41624-98-C-8020. 101 pp.
_____, and J.J. Hervert. 1983. Mountain sheep responses to aerial surveys. Wildlife Society Bulletin. 11:372-375.
_____, M.C. Wallace, C.L. Hayes, and D.W. DeYoung. 1993. The effects of low-altitude aircraft on mountain sheep heart rate and behavior. U.S. Air Force AL/OE-TR-1993-0184.
_____, _____, _____, and _____. 1998. Effects of jet aircraft on mountain sheep. Journal of Wildlife Management. 62: 1246-1254.
Larson and Davis. 1997. Model 812 sound-level meter user manual. Larson·Davis, Incorporated. Provo, Utah. 165pp.
Lawler, J.P. 2004. Demography and Home Ranges of Dall’s sheep in the Central Brooks Range, Anaktuvuk Pass, Alaska. National Park Service, Technical Report NPS/AR/NRTR-2004-43.
Lenarz, M. 1974. The reaction of Dall sheep to an FH-1100 helicopter. In: R.D. Jakimchuk, ed. The reaction of some mammals to aircraft and compressor station noise disturbance. Renewable Resources Consulting Services, Ltd. And Canadian Arctic Gas Study Ltd. Biological Report Series. Volume 23.
Leslie, D.M., Jr., and C.L. Douglas. 1979. Desert bighorn sheep of the River Mountains, Nevada. Wildlife Monograph. 66:1-56.
_____, and _____. 1986. Modeling demographics of bighorn sheep: current abilities and missing links. Trans. North Am. Wildl. Natur. Res. Conf. 51:62-73.
Linderman, S. 1972. A report on the sheep study at Dietrich River headwaters. In L. Nichols and W. Heimer, editors, sheep report. Alaska Department of Fish and Game, Fed. Aid Wildl. Restor. Annu. Proj. Prog. Rep. Vol. 13.
MacArththur, R. A., V. Gesit, and R.H. Johnston. 1982. Cardiac and behavioral responses of mountain sheep to human disturbance. Journal of Wildlife Management 46:351-358.
_____, R.H. Johnston, and V. Gesit. 1979. Factors influencing heart rate in free-ranging bighorn sheep: a physiological approach to the study of wildlife harassment. Canadian Journal of Zoology 57:2010-2021.
Maier, J.A.K., S.M. Murphy, R.G. White, and M.D. Smith. 1998. Responses to caribou to overflights by low-altitude jet aircraft. Journal of Wildlife Management 62: 752-766.
McCorquodale, S.M. 2001. Sex specific bias in helicopter surveys of elk: sightability and dispersion effects. Journal of Wildlife Management 65:216-225.
McCourt, K.H., J.D. Feist, D. Doll and J. Russel. 1974. Disturbance studies of caribou and other mammals in the Yukon and Alaska, 1972. CAGSL Biological Report Series Vol. V.
Moller, A. 1978. Review of animal experiments. Journal of sound and vibration 59:73-77.
Murphy, E. C. 1974. An age structure and a reevaluation of the population dynamics of Dall sheep (Ovis dalli dalli). M.S. thesis. University of Alaska, Fairbanks, Alaska.
_____ , and K. R. Whitten. 1976. Dall sheep demography in McKinley National Park and a re-evaluation of Murie’s data. Journal of Wildlife Management. 40:597-609.
Murphy S.M., M.D. Smith, R.G. White, J.A. Kitchens, B.A. Kugler, D.S. Barber. 1993. Behavioral responses of caribou to low-altitude jet aircraft. Final Report for the Period April 1989 to December 1993. Armstrong Laboratory, Air Force Material Command, Wright-Patterson Air Force Base, OH. AL/OE-TR-1994-0117.
National Park Service. 1994. Report to the congress: report on the effects of aircraft overflights on the National Park System. U.S. Department of the Interior, National response to public law 100-91, the National Parks Overflights Act of 1987.
Neal, A. K., G.C. White, R.B. Gill, D.F. Reed, and J.H. Olterman. 1993. Evaluation of mark-resight model assumptions for estimating mountain sheep numbers. J. Wild. Manage. 57:436-450.
Nichols, L. 1972. Productivity in unhunted and heavily exploited Dall sheep populations. In L. Nichols and W. Heimer, sheep report. Alaska Department of Fish and Game, Fed. Aid Wildl. Restor. Annu. Proj. Prog. Rep. Vol. 13.
_____. 1978. Dall’s sheep reproduction. Journal of Wildlife Management 42:570-580.
_____. 1988. Simple methods of comparing winter snow conditions on alpine and subalpine ranges of Dall’s sheep and mountain goats in Alaska. Proceedings of the Biennial Symposium of the North American Wild Sheep and Goat Council. 6:330-335.
_____, and F.L. Bunnell. 1999. Natural History of Thinhorn sheep. Pages 23 - 77 in Mountain sheep of North American, eds. R. Valdez and P.R. Krausman. The University of Arizona Press, Tucson, AZ.
Nicholson, M.C., R.T. Bowyer, and J.G. Kie.1997. Habitat selection and survival of mule deer: Tradeoffs associated with migration. Journal of Mammalogy. 78: 483-504.
Pollock, K.H., S.R. Winterstein, C.M. Bunck, and P.D. Curtis. 1989. Surival analysis in telemetry studies: the staggered entry design. Journal of Wildlife Management 53: 7-15.
Ramsay, M. A., and R. M. F. S. Sadleir. 1979. Detection of pregnancy in living bighorn sheep by progestin determination. Journal of Wildlife Management 43:970-973.
Roland, CA. 1996. The floristics and community ecology of extrazonal steppe in the Yukon and Kolyma river drainages. M.S. Thesis. Univ. of Alaska Fairbanks, Fairbanks, Alaska. 204 pp.
Seaman, D. E., B. Griffith, and R. A. Powell. 1998. KERNELHR: a program for estimating animal home ranges. Wildlife Society Bulletin 26:95-100.
_____, J. J. Millspaugh, B. J. Kernohan, G. C. Brundige, K. J. Raedeke, and R. A. Gitzen. 1999. Effects of sample size on kernel home range estimates. Journal of Wildlife Management 63:739-747.
_____, and R. A. Powell. 1996. An evaluation of the accuracy of kernel density estimators for home range analysis. Ecology 77:2075-2085.
Seber, G.A.F. 1982. The estimation of animal abundance and related parameters. Second ed. Macmillan Publ. Co., Inc., New York, N.Y. 654pp.
Simmons, N.M. 1982. Seasonal ranges of Dall’s sheep, Mackenzie Mounatins, Northwest Territories. Arctic. 35:512-518.
_____, N.M., M.B. Bayer, and L.O. Sinkey. 1984. Demography of Dall’s sheep in the Mackenzie Mountains, Northwest territories. J. Wildl. Manage. 48:156-162.
Snedecor, G.W. and W.G. Cochran. 1989. Statistical Methods. Eighth edition. Iowa State University Press, Ames, Iowa. 503pp.
Stockwell, C.A., G.C. Bateman, and J. Berger. 1991. Conflicts in national parks: case study of helicopters and bighorn sheep time budgets at the Grand Canyon. Biological Conservation 56:317-328.
Summerfield, B.L. 1974. Population dynamics and seasonal movement patterns of Dall sheep in the Atigun Canyon area, Brooks Range, Alaska. M.S. thesis, University of Alaska, Fairbanks.
SPSS. 1991. SPSS Base 9.0. SPSS, Chicago, Illinois, USA.
Swanson, DK. 1999. Ecological units of Yukon-Charley Rivers National Preserve, Alaska. NPS report YUCH-99-001. Preserve files, Yukon-Charley Rivers National Preserve.
Tucker, C. J. 1979. Red and photographic infrared linear combinations for monitoring vegetation. Remote Sensing of the Environment 8:127-150.
_____, I. Y. Fung, C. D. Keeling, and R. H. Gammon. 1986. Relationship between atmospheric CO2 variations and a satellite-derived vegetation index. Nature 319:195-199.
_____, and P. J. Sellars. 1986. Satellite remote sensing of primary production. International Journal of Remote Sensing 7:1395-1416.
Valdez, R. and P.R. Krausman. 1999. Description, distribution and abundance of mountain sheep in North America. Pages 3 - 22 in Mountain sheep of North American, eds. R. Valdez and P.R. Krausman. The University of Arizona Press, Tucson, AZ.
Weisenberger, M.E., P.R. Krausman, M.C. Wallace, D.W. DeYoung, and O.E. Maughan. 1996. Effects of simulated jet aircraft noise on heart rate and behavior of desert ungulates. Journal of Wildlife Management 60:52-61.
White, G.C. and R.A. Garrott. 1990. Analysis of wildlife radio-tracking data. Academic Press, Inc. 383 pp.
White, R.G., J.E. Rowell, and W.E. Hauer. 1997. The role of nutrition, body condition and lactation on calving success in muskoxen. Journal of Zoology, London. 243:13-20.
Zar, J.H. 1996. Biostatistical analysis, 3rd edition. New Jersey. Prentice-Hall, Inc.
2004 Sheep Report
http://www.nps.gov/yuch/Expanded/key_resources/sheep/sheep_2004.htm
Doug Beckstead
December 8, 2004