-42- 



493 trap nights resulted in the capture of 20 small mairanals. Of these 17 

 were deer mice, two least chipmunks and one prairie vole. Captures per 

 100 trap nights (4.06) were moderate as was diversity at three species. Deer 

 mice were more common in grassland coulees than grassland in general, probably 

 as a result of the numerous cracks and crevasses found in the coulees. In 

 addition, the presence of least chipmunks may possibly be related to the brushy 

 nature of vegetation found in this type. 



FALL SMALL MAMMAL TRAP DATA 



Results of the fall sampling effort for the four major vegetation types are 

 presented in Table 7. The fall small mammal sampling effort resulted in no 

 new species of small mammals captured. However, the western harvest mouse 

 was added to the creek vegetation type where it had not previously been recorded. 

 Only two species of small mammals (deer mice and western harvest mice) were 

 captured and captures per 100 trap nights were not significantly different than 

 that found during summer small mammal sampling. 



Table 7 . Results of fall small mammal sampling. 



Vegetation 

 type 



Badlands 

 Grasslands 

 Sage-Grassland 

 Creek 



REPTILES AND AMPHIBIANS 



Table 8 presents a list of the reptile and amphibian species, vegetation 

 type in which they were most frequently observed, relative abundance and 

 classification. A brief discussion of each species follows. 



Turtles (Testudinata) 



Painted Turtle (Chrysemys piota) - This was the only species of turtle located 

 on the study area. It was usually found at large Intermittent pools on creeks 

 and at stock reservoirs, and can become locally common in these areas. 



No observations of snapping turtles (Chelydra serpentina) or spiney softshell 

 turtles (Trionyx spinifevus) (both "special Interest or concern" species) were 

 recorded on the area but the potential exists for their occurrence at stock 

 ponds and large pools in the major creeks of the area, especially where these 



