from Chapter II of Spatial Analysis of Ecological Factors Related to Grasshopper Population Dynamics in Wyoming
Additional Fig. Spatial distribution of rangeland grasshopper outbreaks in Wyoming from 1944 to 1949 (white = no recorded infestations; light shading = 1-2 yr infested; dark shading = 3-4 yr infested; purple = 5 yr infested; blue-green = 6-7 yr infested; red = 8-9 yr infested; black = state and county borders).
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