Northern Prairie Wildlife Research Center
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Gilmer, D. S., R. E. Kirby, I. J. Ball, and J. H. Riechmann. 1977. Post-breeding activities of mallards and wood ducks in north-central Minnesota. J. Wildl. Manage. 41:345-359.
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Hochbaum, G. S., and F. D. Caswell. 1978. A forecast of long-term trends in breeding mallard populations on the Canadian prairies. Can. Wildl. Serv. Prog. Notes 90. 8pp.
Johnson, D. H. 1979. Estimating nest success: the Mayfield method and an alternative. Auk 96:651-661.
Johnson, D. H. 1980. The comparison of usage and availability measurements for evaluating resource preference. Ecology 61:65-71.
Johnson, D. H., and A. B. Sargeant. 1977. Impact of red fox predation on the sex ratio of prairie mallards. U.S. Fish and Wildl. Serv. Wildl. Res. Rep. 6. 56pp.
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Kirsch, L. M., H. F. Duebbert, and A. D. Kruse. 1978. Grazing and haying effects on habitats of upland nesting birds. Trans. North Am. Wildl. Nat. Resour. Conf. 43:486-497.
Klett, A. T., and D. H. Johnson. 1982. Variability in nest survival rates and implications to nesting studies. Auk 99:77-87.
Krapu, G. L. 1974. Avian mortality from collisions with overhead wires in North Dakota. Prairie Nat. 6:1-6.
Krapu, G. L. 1981. The role of nutrient reserves in mallard reproduction. Auk 98:29-38.
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Krapu, G. L., A. T. Klett, and D. G. Jorde. 1983. The effect of variable spring water conditions on mallard reproduction. Auk 100:689-698.
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Livezey, B. C. 1981b. Locations and success of duck nests evaluated through discriminant analysis. Wildfowl 32:23-27.
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Mayfield, H. 1975. Suggestions for calculating nest success. Wilson Bull. 87:456-466.
Mechlin, L. M., and C. W. Shaiffer. 1980. Net-firing gun for capturing breeding waterfowl. J. Wildl. Manage. 44:895-896.
Miller, H. W., and D. H. Johnson. 1978. lnterpreting the results of nesting studies. J. Wildl. Manage. 42:471-476.
Mosteller, F., and J. W. Tukey. 1977. Data analysis and regression, 2nd ed. Addison-Wesley Publ. Co., Reading, Mass. 588pp.
Neu, C. W., C. R. Byers, and J. M. Peek. 1974. A technique for analysis of utilization-availability data. J. Wildl. Manage. 38:541-545.
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Patterson, J. H. 1979. [Can ducks be managed by regulation?] Experiences in Canada. Trans. North Am. Wildl. Nat. Resour. Conf. 44:130-139.
Pospahala, R. S., D. R. Anderson, and C. J. Henny. 1974. Population ecology of the mallard. II. Breeding habitat conditions, size of breeding populations, and production indices. U.S. Fish and Wildl. Serv. Resour. Publ. 115. 73pp.
Raveling, D. G. 1979. The annual cycle of body composition of Canada geese with special reference to control of reproduction. Auk 96:234-252.
Rearden, J. D. 1951. Identification of waterfowl nest predators. J. Wildl. Manage. 15:386-395.
Ringelman, J. K., and J. R. Longcore. 1980. Computer simulation models as tools for identifying research needs: a black duck population model. Trans. Northeast Fish and Wildl. Conf. 37:182-193.
Robel, R. J., J. N. Briggs, A. D. Dayton, and L. C. Hulbert. 1970. Relationships between visual obstruction measurements and weight of grassland vegetation. J. Range Manage. 23:295-297.
Sargeant, A. B. 1981. Road casualties of prairie nesting ducks. Wildl. Soc. Bull. 9:65-69.
Sargeant, A. B., S. H. Allen, and R. T. Eberhardt. 1984. Red fox predation on breeding ducks in midcontinent North America. Wildl. Monogr. 89. 41pp.
Sargeant, A. B., G. A. Swanson, and H. A. Doty. 1973. Selective predation by mink, Mustela vison, on waterfowl. Am. Midl. Nat. 89:208-214.
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Seago, J. B., M. R. Wright, C. H. Weeser, and S. E. Smith. 1970. Soil survey of Wells County, North Dakota. U.S. Dep. Agric. Soil Conserv. Serv. in coop. with N.D. Agric. Exp. Stn., U.S. Gov. Printing Off., Washington, D.C. 84pp.
Smith, A. G. 1971. Ecological factors affecting waterfowl production in the Alberta parklands. U.S. Fish and Wildl. Serv. Resour. Publ. 98. 49pp.
Sowls, L. K. 1955. Prairie ducks: a study of their behavior, ecology and management. Stackpole Co., Harrisburg, Pa. 193pp.
Stewart, R. E. 1975. Breeding birds of North Dakota. Tri-College Center for Environmental Studies, Fargo, N.D. 295pp.
Stewart, R. E., and H. A. Kantrud. 1971. Classification of natural ponds and lakes in the glaciated prairie region. U.S. Fish and Wildl. Serv. Resour. Publ. 92. 57pp.
Stoudt, J. H. 1971. Ecological factors affecting waterfowl production in the Saskatchewan parklands. U.S. Fish and Wildl. Serv. Resour. Publ. 99. 58pp.
Talent, L. G., R. L. Jarvis, and G. L. Krapu. 1983. Survival of mallard broods in south-central North Dakota. Condor 85:74-78.