Grasshoppers of Wyoming and the West

Entomology

Wyoming Grasshopper Population Dynamics Maps

Infestation expansion 1971-72 map

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

Fig. 14. Spatial distribution of rangeland grasshopper outbreaks during 1971-1972, when the infestation area increased by 228.4% over the previous year

Fig. 14. Spatial distribution of rangeland grasshopper outbreaks during 1971-1972, when the infestation area increased by 228.4% over the previous year (dark shading = uninfested area; yellow = area infested in 1971 only; blue = area infested in 1972 only; green = area infested both years; black = state and county borders).

Back to Wyoming Grasshopper Maps  
Main Page