Northern Prairie Wildlife Research Center
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| Figure 1. Simplified flow chart illustrating major components of mallard productivity model. (See text for explanation of numbers.) |
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| Figure 2. Example of model output showing nesting histories of 16 simulated hens under average conditions (above) and with 13 May snowstorm (below). |
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| Figure 3. Number of simulated active nests, by day within breeding season, for average (control) situation and five modifications. |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/mpeval/figures.htm
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