Tropical Forest Canopy (IMAGE) Smithsonian Tropical Research Institute Caption This image shows a tropical forest tree canopy, Barro Colorado island, Panama. High biodiversity tropical forest may be the result of a struggle between plants, the diseases that infect them, and the insects and animals that eat them. Parker et al., by proposing that the degree of genetic relationship between plant community members affects the outcome of disease outbreaks, come one step closer to a model that predicts disease outcomes. Credit STRI Archives (for all uses) 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.