Where can I get 25 foot tall “macro net poles”?
Dave S. Johnston djohnston@harveyecology.com 20616 Brookwood Lane Saratoga, CA 95070 Dave’s pictures macropoles.pdf Dave’s description: An Improved Technique to Capture Bats Using Macro Mist Nets The use of Macro mist nets (6 m or 9 m high x 30 m long) enables investigators to increase the height and surface area of smaller, more conventional mist nets. However, when using macro mist nets, the horizontal tension on shelf cords is difficult to maintain without losing the ability to easily lower or raise net shelves. Current designs are either effective but expensive and cumbersome (e.g., sailboat masts and track with runners), or do not easily maintain proper shelf cord tension and maneuverability (pole with continuous rope and shower curtain rings). A new design may be purchased from Dave Johnston for $550 plus shipping. The poles are 1.5 m long, weigh 24.5 kg, and the pole set-up was tested in 1998 near Tortuguero, Costa Rica and in 1999 and 2000 at Lamanai, Belize. Mean installation
