List of Figures (continued) 



Figure 17. Percent species composition of all recorded 1979 waterfowl 

 observations. Circle West study area (1977-79 changes also 

 shown) 52 



Figure 18. Year-to-year changes in waterfowl production. Circle 



West study areas 52 



Figure 19. Year-to-year changes in numbers of species and numbers 

 of registrations of water birds recorded on June runs 

 of five roadside wildlife survey routes. Circle West 

 study area 55 



Figure 20. Year-to-year changes in June breeding bird species rich- 

 ness for five roadside wildlife survey routes. Circle 

 West study area 56 



Figure 21. Year-to-year changes in June breeding bird community 



Sigma for five roadside wildlife survey routes, Circle 



West study area. 51 



Figure 22. Year-to-year changes in June breeding bird species number 

 (exclusive of summer visitors and water birds) for five 

 roadside wildlife survey routes. Circle West study area. --SI 



Figure 23. Year-to-year changes in cumulative May-July species curves 

 for breeding birds encountered on five roadside wildlife 

 survey routes. Circle West study area, 1977-79 63 



Figure 24. Cumulative May-July 1977-79 breeding bird species curves 

 for five roadside wildlife survey routes. Circle West 

 study area 63 



Figure 25. Year-to-year changes in shapes of breeding bird species 

 curves for the Missouri River and Flowing Well roadside 

 wildlife survey routes, based on pooled May-July data 

 for each year 64 



Figure 26. Similarity in percent for 1968-1979 June runs of the 



Circle roadside wildlife survey route (arrows indicate 

 change in observers) 64 



Figure 27. Year-to-year changes in small mammal biomass for six 



habitats sampled in the Circle West study area (control 

 and experimental data are averaged for combined spring- 

 fall data for each habitat). 67 



Figure 28. Year-to-year changes in spring-fall small mammal biomass 

 change for six habitats sampled in the Circle West study 

 area (control and experimental data are averaged for 

 each habitat) 67 



m 



