RESULTS 



Habitat Use Surveys 



Twenty-three sites (x\ the Deerlodge National Forest were visited cxie 

 or more times (Figure 1), and at least one walking transect was run 

 at each of these sites. At some sites two one-hour transects were 

 run in the evening, at two sites transects were run after midnight, 

 and at two sites transects were run 1 hour before dawn. One site was 

 visited 3 times, and two were visited twice. Mist nets were set up 

 at 19 of these 23 sites (Table 1), and the harp trap was enployed at 

 one site (twice) on the Deerlodge National Forest. 



No bats were heard during any 1 hour transect run after midnight. In 

 30 hours of transect run before midnight, 33% recorded no bats, 53% 

 recorxied between one and 9 bats, and 10% recorded more than 21 bats 

 in one hour ( Table 1 ) . 



Habitat components of sites with high bat activity (more than 10 bat 

 passes per ho-or), moderate bat activity ( between 5 and 9 bat passes 

 per hour), and low bat activity (less than 5 bat passes per hour) 

 were analyzed to isolate significant features of habitat used by bats 

 on the Forest. If more than one transect was run at a site, the 

 transect with the most passes per hour was used for site 

 classification. The records of bat passes per hour for Queen's Gulch 

 and Muskrat Creek were lost. As 10 bats were captured at Queen's 

 Gulch in one evening, the most at one site on the Deerlodge National 



10 



