 This paper examines the use of lidar and hyperspectral imagery to map the spatial distribution of plant species in savannas. The authors found that the combination of these two technologies enables accurate species mapping at ecosystem scales. They also addressed the challenges of integrating pixel and crown level data, as well as the need to account for reflectance and isotropy. By addressing these issues, they were able to achieve a high level of accuracy in their predictions. This article was authored by Gregory P. Asner, Jean-Baptiste Ferret, Matthew S. Colbin and others.