MADISON – David N. Redell, bat ecologist for the Wisconsin Department of Natural Resources, passed away on Tuesday, Sept. 18, 2012, at his home in Madison surrounded by his family. Dave devoted his life to the study and conservation of bats; an intriguing and valuable, though often misunderstood, group of animals now facing multiple threats. This passion was ignited when he enrolled at UW-Madison in 1997. Later his graduate work there focused on the behavioral ecology of bats using Neda Mine, the Midwest?s largest bat hibernaculum. After receiving his master?s degree in 2004, David became the first bat ecologist for the Wisconsin Department of Natural Resources in the Bureau of Endangered Resources.