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Distribution and Abundance of Predators that Affect
Duck Production: Prairie Pothole Region

Appendix


Table 10. Average number of places per hour (observation rate) where one or more individuals of each mammalian predator species were seen in study areas in the prairie pothole region, 1983-88.a

Areab Year Observer Hours Observation rate (x103)
Coyote Red Fox Raccoon Striped Skunk Badger Mink Weaselsc Franklin's Ground Squirrel
Canada
Alberta
Gayford 1985 822 71 0 0 0 15 0 4 0
Hay Lakes* 1983 888 12 0 0 0 0 0 6 6
1984 1085 29 0 0 2 1 0 0 0
Holden* 1983 830 14 1 0 4 0 0 2 6
Penhold* 1984 762 17 0 0 4 0 0 3 0
1985 769 16 1 0 5 1 0 0 0
Manitoba
Cartwright 1983 586 3 7 2 0 0 0 0 10
Moore Park* 1983 774 1 4 1 3 4 0 3 61
1984 920 1 0 2 3 0 0 0 16
Saskatchewan
Ceylon 1983 935 1 3 2 10 9 0 2 0
1984 608 10 13 2 12 2 0 0 2
Craik 1984 606 2 23 0 7 0 0 0 3
1985 636 0 6 2 30 0 0 0 3
Denzil 1984 870 0 7 0 1 0 0 1 0
1985 1084 1 8 0 6 2 0 1 0
Earl Grey* 1985 868 2 0 0 2 0 0 0 1
Goodwater 1983 825 7 24 1 11 0 0 0 5
Hanley* 1983 867 5 6 0 4 1 0 0 9
1984 852 9 1 0 11 0 0 0 6
1985 1215 8 2 0 21 1 0 0 9
Inchkeith* 1984 624 14 32 0 2 0 0 2 10
1985 813 0 10 0 3 0 0 0 12
Leask* 1984 1167 1 2 0 1 0 0 0 1
1985 1403 3 2 0 1 1 0 1 0
Shamrock 1983 950 2 0 0 2 0 0 2 0
1984 561 2 0 0 11 0 0 4 0
1985 547 11 29 0 0 4 0 0 2
Yorkton* 1985 1087 5 0 6 7 0 0 2 6
United States
Minnesota
Hawley* 1987 859 0 9 2 6 0 2 0 0
1988 718 0 19 1 8 1 1 1 1
Hitterdal* 1988 1251 0 10 2 1 0 4 1 6
Lake Park* 1987 875 0 13 0 3 0 3 0 5
1988 731 0 8 5 0 1 4 0 0
Montana
Morgan 1983 290 0 24 0 0 3 0 0 0
Plentywood 1983 435 7 7 0 28 0 0 0 0
North Dakota
Courtenay 1988 469 0 21 0 13 0 0 0 0
Eldrige 1987 932 1 28 0 0 0 0 0 2
1988 286 0 45 0 7 0 0 0 3
Fredonia 1987 1456 7 5 2 3 1 1 5 8
1988 776 4 15 0 6 0 0 4 3
Jud 1987 798 5 9 3 0 0 0 1 8
1988 365 14 14 5 8 0 3 0 0
Kulm 1988 1668 2 20 4 2 1 2 0 2
Litchville 1987 910 0 41 2 3 0 1 0 3
1988 355 0 110 3 0 0 3 0 0
Plaza 1983 453 0 16 0 7 0 0 7 0
Sharon 1983 514 0 82 0 2 0 0 2 12
Streeter 1983 416 5 24 2 12 0 0 0 2
South Dakota
Hosmer 1983 431 0 53 0 9 0 0 5 0
Madison 1983 471 0 0 0 30 0 0 6 0
Parkston 1983 458 0 9 2 31 7 0 2 2

aA place is defined as 0.4 ha.
bStudy areas denoted with an asterisk (*) are in the aspen parkland, all others are in the prairie.
cPredominantly long-tailed weasels but includes ermines.


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