Researchers studied the height and diameter of a tree species called Pericopsis elata in the Congo Basin. They found that existing equations for estimating tree height were not accurate for this species. They developed a new equation specific to P. elata and discovered that trees in the Democratic Republic of the Congo are taller than those in Cameroon. The differences in tree height were influenced by the environment and climate of the specific locations. This research highlights the importance of using species-specific equations for accurate forest productivity estimates.