METHODS 



Equipment 



Mist nets: Braided nylon mist nets, in 18, 30, and 36 foot 

 lengths, (50 dernier/2 ply; 1 1/2 inch mesh) were used to capture 

 bats ( Kunz and Kurta 1988). Mist nets were strung on sectional 

 aluminum poles made from electrical conduit, cut to 5 foot 

 lengths, each with a connector at one end, so a net pole could be 

 fashioned to any desired height. Poles used for this study were 

 two or three lengths high (10 to 15 feet). Poles were held in 

 place with ropes tied to trees, rocks, or branches. Mist nets 

 were deployed across forest trails, across the narrower stretches 

 of slow moving streams and smaller pools, and adjacent to the 

 shoreline of lakes and larger ponds (Kunz and Kurta 1988). 



Harp Trap: A modified collapsible harp trap (Kunz and Kurta 

 1988, Tuttle 1974) was constructed using 3 inch PVC pipe for the 

 frame and 10 pound monofilament fishing line strung between the 

 vertical members of the trap. The double-frame trap was used at 

 the mouths of caves and adits (Kunz and Kurta 1988). 



Bat detectors: Tunable Broadband ultra-sonic bat detectors 

 ( QMC Mini-2) were used to detect night-time bat activity. If a 

 single detector was being used it was tuned to 40 kHz when 

 walking a transect. If two detectors were available, one was 

 tuned to 38 kHz and the other to 25 kHz. When a bat was 



