Prescribed biological criteria for acceptable pothole consolidation in Manitoba / R. Wishart, W. Cowan and R. Jones.
Material type:
TextPublication details: MB : 1984.Description: 15 p. : ill. ; 28 cmOnline resources: Abstract: The pothole region of North America, lying primarily in the Aspen Parkland biome is characterized by distinctive knob and kettle topography formed as a result of Pleistocene glaciation. Nearly 10 million water holding depressions of a variety of types are present in this area (Jahn 1969) which occupies nearly 42 million hectares.Productivity of small wetlands for waterfowl is very high. Their shallow water, rapid spring warming and fertile soil provide an abundance of plant and animal foods, and this area supports about 62% of North America's waterfowl population (Bellrose 1980). Muskrat and other aquatic organisms also depend on these habitats.
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Includes bibliographical references (p. 15).
The pothole region of North America, lying primarily in the Aspen Parkland biome is characterized by distinctive knob and kettle topography formed as a result of Pleistocene glaciation. Nearly 10 million water holding depressions of a variety of types are present in this area (Jahn 1969) which occupies nearly 42 million hectares.Productivity of small wetlands for waterfowl is very high. Their shallow water, rapid spring warming and fertile soil provide an abundance of plant and animal foods, and this area supports about 62% of North America's waterfowl population (Bellrose 1980). Muskrat and other aquatic organisms also depend on these habitats.