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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

Aread Relative Abundancec
Year(s) Number species present Number species
> or = to commone
Coyote (1,2,3) Red fox (1,2,3) Rac- coon (2) Striped Skunk (2) Badger (2,3) Mink (1,2,3) Weaselsf (1,2,3) Franklin's Ground Squirrel
(2)
Canada
Alberta
Gayford198542400230d0
Hay Lakes*1983-8452410300d1
Holden*198372421310d1
Penhold*1984-8553430320d0
 Average5.32.3        
Manitoba
Cartwright198364333320u2
Moore Park*1983-849g5333321d3
 Average7.54.5        
Saskatchewan
Ceylon1983-8485333331d1
Craik1984-8574343411u1
Denzil1984-8553340410d0
Earl Grey*198564432310u4
Goodwater198365333330u2
Hanley*1983-8563422420u3
Inchkeith*1984-8575433330d2
Leask*1984-8574431330d1
Shamrock1983-8574432330d1
Yorkton*198573414310d2
 Average6.64.0        
United States
Minnesota
Hawley*1987-8874044313d1
Hitterdal*198864044303d2
Lake Park*1987-8864044313u1
 Average6.34.0        
Montana
Morgan19834433043uu0
Plentywood19835533344uu0
 Average4.54.5        
North Dakota
Courtenay198863143322u0
Eldrige1987-8874343321u1
Fredonia1987-8884333322d1
Jud1987-8885334332d1
Kulm198876343333u1
Litchville1987-8864043323u1
Plaza19836424433ud0
Sharon19836404343ud2
Streeter19836533434uu1
 Average6.74.3        
South Dakota
Hosmer19836423333ud0
Madison19836423433ud0
Parkston19837533433ud1
 Average6.34.3        
Total areas
detected (%)
   85978510094366173
Total areas > or = to common (%)   738570974820h-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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