Northern Prairie Wildlife Research Center
The stabilized regulations study was conducted during 1982-85, but surveys of predators were not initiated until 1983. Predators were surveyed 1-3 years in 16 study areas: in 4 in Alberta, in 2 in Manitoba, and in 10 in Saskatchewan. The surveys were conducted in 8 areas in 1983, in 10 areas in 1984, and in 10 areas in 1985 (Appendix Table 1).
The Central Flyway study, a companion investigation to the stabilized regulations study, was conducted in nine study areas in the three states during 1983. Predators were surveyed in eight of those study areas: in two in Montana, in three in North Dakota, and in three in South Dakota (Appendix Table 1).
The small unit management study began in 1987 and was conducted in nine study areas: in three in Minnesota and in six in North Dakota (Appendix Table 1). Data from 1987 and 1988 are included in this report. Predators were surveyed in six of the small unit management study areas in 1987 (in two in Minnesota and in four in North Dakota) and in all nine study areas in 1988.