Stefan Schnitzer (IMAGE) University of Wisconsin - Milwaukee Caption By studying lianas, UWM ecologist Stefan Schnitzer hopes to answer the question of what mechanisms determine the distribution and abundance of lianas, and maintenance of plant diversity, in tropical forests. Credit Photo by Marcos Guerra/Center for Tropical Forest Science, Smithsonian Tropical Research Institute Usage Restrictions with whole credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.