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

Tables

Table 4. Number and relative abundance of mammalian predator species affecting duck production by study area and province or state in the prairie pothole region.^a,b

Area^d			Relative Abundance^c
Area^d			Year(s)	Number species present	Number species > or = to common^e	Coyote (1,2,3)	Red fox (1,2,3)	Rac- coon (2)	Striped Skunk (2)	Badger (2,3)	Mink (1,2,3)	Weasels^f (1,2,3)	Franklin's Ground Squirrel (2)
Canada
	Alberta
		Gayford	1985	4	2	4	0	0	2	3	0	d	0
		Hay Lakes*	1983-84	5	2	4	1	0	3	0	0	d	1
		Holden*	1983	7	2	4	2	1	3	1	0	d	1
		Penhold*	1984-85	5	3	4	3	0	3	2	0	d	0
			Average	5.3	2.3
	Manitoba
		Cartwright	1983	6	4	3	3	3	3	2	0	u	2
		Moore Park*	1983-84	9^g	5	3	3	3	3	2	1	d	3
			Average	7.5	4.5
	Saskatchewan
		Ceylon	1983-84	8	5	3	3	3	3	3	1	d	1
		Craik	1984-85	7	4	3	4	3	4	1	1	u	1
		Denzil	1984-85	5	3	3	4	0	4	1	0	d	0
		Earl Grey*	1985	6	4	4	3	2	3	1	0	u	4
		Goodwater	1983	6	5	3	3	3	3	3	0	u	2
		Hanley*	1983-85	6	3	4	2	2	4	2	0	u	3
		Inchkeith*	1984-85	7	5	4	3	3	3	3	0	d	2
		Leask*	1984-85	7	4	4	3	1	3	3	0	d	1
		Shamrock	1983-85	7	4	4	3	2	3	3	0	d	1
		Yorkton*	1985	7	3	4	1	4	3	1	0	d	2
			Average	6.6	4.0
United States
	Minnesota
		Hawley*	1987-88	7	4	0	4	4	3	1	3	d	1
		Hitterdal*	1988	6	4	0	4	4	3	0	3	d	2
		Lake Park*	1987-88	6	4	0	4	4	3	1	3	u	1
			Average	6.3	4.0
	Montana
		Morgan	1983	4	4	3	3	0	4	3	u	u	0
		Plentywood	1983	5	5	3	3	3	4	4	u	u	0
			Average	4.5	4.5
	North Dakota
		Courtenay	1988	6	3	1	4	3	3	2	2	u	0
		Eldrige	1987-88	7	4	3	4	3	3	2	1	u	1
		Fredonia	1987-88	8	4	3	3	3	3	2	2	d	1
		Jud	1987-88	8	5	3	3	4	3	3	2	d	1
		Kulm	1988	7	6	3	4	3	3	3	3	u	1
		Litchville	1987-88	6	4	0	4	3	3	2	3	u	1
		Plaza	1983	6	4	2	4	4	3	3	u	d	0
		Sharon	1983	6	4	0	4	3	4	3	u	d	2
		Streeter	1983	6	5	3	3	4	3	4	u	u	1
			Average	6.7	4.3
	South Dakota
		Hosmer	1983	6	4	2	3	3	3	3	u	d	0
		Madison	1983	6	4	2	3	4	3	3	u	d	0
		Parkston	1983	7	5	3	3	4	3	3	u	d	1
			Average	6.3	4.3
Total areas detected (%)						85	97	85	100	94	36	61	73
Total areas > or = to common (%)						73	85	70	97	48	20^h	-	9

^aIncludes only predatores known or thought to be resident in one or more study areas, 1983-88.
^bNumerical abundance ratings are 4 = numerous, 3 = common, 2 = uncommon, 1 = scarce, and 0 = undetected; alphabetical designators (d = detected, u = undetected) are used for species in study areas for which data were insufficient to rate relative abundance.
^cSpecies denoted with a (1) prey extensively on adult ducks, species denoted with a (2) prey extensively on duck eggs, and species denoted with a 93) are known or thought to prey extensively on ducklings.
^dStudy areas denoted with an asterisk (*) are in the aspen parkland; all other study areas are in the prairie.
^eMinimal because the mink (some study areas) and weasels were not rated.
^fIncludes ermine and long-tailed weasel.
^gIncludes the gray wolf, which was found only in the Moore Park study area and rated scarce.
^hBased only on data from study areas where abundances of predators were rated.

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Distribution and Abundance of Predators that AffectDuck Production: Prairie Pothole Region

Tables

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