Tropical Forest Tree (image) Smithsonian Tropical Research Institute Share Print E-Mail Caption Tropical forest tree growth, distribution and mortality may be difficult to model. Credit Photo: Christian Ziegler, STRI Archives. Usage Restrictions None Share Print E-Mail 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.