considered low activity, but these categories will serve for the 

 analysis of relative habitat use on the Deerlodge. 



Assuming that the degree of bat activity associated with a site 

 correlates with the preference by bats for some component of the 

 habitat of that site, analysis of bat activity by habitat 

 component should indicate which components bats appear to be 

 selecting for, or against. For instance, 67 percent of the sites 

 surveyed in which beaver ponds were a component of the habitat 

 had high bat activity, while another none had moderate activity 

 (Table 2). Of sites with mature Douglas fir, 27% had high 

 activity and 55% moderate activity. 



The habitat components at which a third or more of the sites 

 featuring that component had high bat activity were: beaver ponds 

 (67%), rock outcrops (43%), mature hardwoods (43%), riparian 

 areas (38%), caves and adits (33%), and clearcuts (100%). There 

 was only one site surveyed in 1992 with a clearcut nearby, and 

 that site had high activity; it also had a riparian area, mature 

 Douglas fir and mature hardwoods, a limestone cave, and rock 

 outcrops in the vicinity. Features at which a third or more of 

 the sites with that component had moderate activity were: old 

 buildings (67%), caves and adits (67%), mature Douglas fir stands 

 (55%), and rock outcrops (43%) (Table 2). 



Of those sites that had high bat activity, 100% had riparian 



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