Northern Prairie Wildlife Research Center
Assessment of a Mallard Model in
Minnesota's Prairie Coteau
We worked in southwestern Minnesota's PPJV Prairie Coteau target area (Fig. 1).
The region is a massive plateau separated from the Minnesota River Valley region
by an escarpment rising approximately 200 m above the plain (Kratz, T. K., and
G. L. Jensen, Minnesota's Landscape Regions, Minn. Dep. Nat. Resour., edited and
revised by K. M. Wendt, Dec. 1986). The study area was gently to steeply rolling
with lakes and wetlands occurring along the escarpment. Deciduous trees occurred
primarily in river valleys, along lake margins, and around farmsteads. Wetland
drainage has been extensive in this intensively cultivated landscape, and few
remnants of presettlement prairie remain. The area encompasses approximately 10%
of Minnesota's PPJV area and contains about 9% of Minnesota's PPJV mallards (J.
Lawrence, Minn. Dep. Nat. Resour., pers. commun.).
|Fig. 1. Locations of 3 study sites in southwestern Minnesota's Prairie
Coteau target area, 1991-1992.
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