Panama Forest Canopy (IMAGE) University of Utah Caption This is a view of Panama's rainforest canopy looking toward the Chagres River and the Caribbean Sea. A new University of Utah study found that plant pathogens or diseases that infect and kill tree seedlings actually help increase the diversity of tree species in the tropical forest. Credit Erin Spear, University of Utah. Usage Restrictions None 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.