Tree size diversity in the Elephant Camp natural forest was studied to understand how different habitats affect tree growth and survival. By analyzing tree stems in Riparian and Old-growth forests, researchers found that Riparian forests had more trees but Old-growth forests had higher species diversity and evenness. The diameter at breast height was similar in both forest types, with a positive skew in size-density distributions. Both forests had the same size-density frequency shape but different proportions of tree sizes and structural diversities.