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Full-Text Articles in Animal Sciences
Effects Of Water Fluctuation And Vegetation Change On Bird Populations, Particularly Waterfowl, Paul A. Johnsgard
Effects Of Water Fluctuation And Vegetation Change On Bird Populations, Particularly Waterfowl, Paul A. Johnsgard
Paul Johnsgard Collection
In recent years reclamation activities in the Columbia Basin of Washington have resulted in profound changes in the character of the entire landscape throughout this region. The present study is an attempt to clarify some of the biological effects of impoundment behind O'Sullivan Dam in the Potholes area, Grant County (Johnsgard 1955b). In this area, a large expanse of moving sand dunes and a high water table are responsible for causing the formation of numerous small water areas, or "potholes," between the dunes. The physical nature of the area and its limited potentialities have made it of little value to …