Grasshoppers of Wyoming and the West Home Page

Wyoming Grasshopper Maps

Wyoming Grasshopper Distribution Atlas

Wyoming Grasshopper Population Dynamics Maps

Go to your choice of the maps from the following list:

1944-96 Grasshopper Outbreak Frequency Map
1944-49 Grasshopper Outbreak Frequency Map
1950-59 Grasshopper Outbreak Frequency Map
1960-69 Grasshopper Outbreak Frequency Map
1970-79 Grasshopper Outbreak Frequency Map
1980-89 Grasshopper Outbreak Frequency Map
1990-96 Grasshopper Outbreak Frequency Map
Spatial distribution map for the years when less than 300,000 ha were infested
Spatial distribution for map the years when more than 1,000,000 ha were infested
Region definition map
Infestation collapse 1966-67 map
Infestation collapse 1968-69 map
Infestation collapse 1975-76 map
Infestation collapse 1987-88 map
Infestation collapse 1988-89 map
Infestation expansion 1962-63 map
Infestation expansion 1971-72 map
Infestation expansion 1973-74 map
Infestation expansion 1978-79 map
Infestation expansion 1986-87 map

Wyoming Ecological Factor Maps

Go to your choice of the maps from the following list:

Vegetation Map
Precipitation Map
Elevation Map
Mean Annual Potential Evapotranspiration Map
Soil Association Map

Annual Adult Grasshopper Survey Maps 1944-81, 1985-94:

1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996