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Grasshoppers of Wyoming and the West

Entomology

Wyoming Grasshopper Population Dynamics Maps

Infestation collapse 1988-89 map

from Chapter II of Spatial Analysis of Ecological Factors Related to Grasshopper Population Dynamics in Wyoming

Fig. 12. Spatial distribution of rangeland grasshopper outbreaks during 1988-1989, when infestation area decreased by 89.5% from the previous year

Fig. 12. Spatial distribution of rangeland grasshopper outbreaks during 1988-1989, when infestation area decreased by 89.5% from the previous year (dark shading = uninfested area; blue = area infested in 1988 only; yellow = area infested in 1989 only; green = area infested both years; black = state and county borders).

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