Relative bat densities varied between habitats. Those with rock- 

 outcrops, beaver ponds, mature hardwoods, mature Douglas fir, or 

 riparian areas nearby had the greatest bat activity. 



Findley ( 1993 ) stated that an increase in species richness 

 aoccnpanies increased availability of roosts. "Forested regions 

 lacking cliffs, caverns, and caves support fewer species, and those 

 that do occur are known to use trees as daytime roosts in summer. 

 Mountainous, broken topography with opportunities for roosting in 

 crevices, cliff faces, caverns, and caves support richer communities" 

 (Findley 1993). 



Management prescriptions that maintain undisturbed stands of old- 

 growth forest, especially old stands of Douglas fir and mature 

 hardwoods, the maintenance of healthy riparian areas, and the 

 preservation of caves and access to abandoned mine adits will provide 

 roosting and foraging habitat for a diversity and abundance of bats. 

 Management activities that promote large lodgepole pine stands, and 

 even-aged management will not. 



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