Lianas in Old-Growth Forest (IMAGE) Smithsonian Tropical Research Institute Caption Lianas are responding to natural disturbance with increased proliferation, but their response seems to be potentiated by other climate-change factors. Credit Jorge Aleman, Smithsonian Tropical Research Institute Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.