from Chapter II of Spatial Analysis of Ecological Factors Related to Grasshopper Population Dynamics in Wyoming
Fig. 6. Spatial distribution of rangeland grasshopper outbreaks for the years when less than 300,000 ha were infested (white = no recorded infestations; light shading = 1 yr infested; dark shading = 2 yr infested; dark blue = 3 yr infested; blue-green = 4 yr infested; red = 5 yr infested; orange = 6 yr infested; black = state and county borders).
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