Vela Díaz, Dilys M., Marko J. Spasojevic, James W. Dalling, Sean M. McMahon, Benjamin L. Turner, Joseph A. LaManna, Jonathan A. Myers, and the Center for Tropical Forest Science-Forest Global Earth Observatory (CTFS-ForestGEO) Network (27 collaborators from 15 forest-dynamics plots in 9 countries). MacArthur’s niche hypotheses revisited: the role of niche space, niche breadth and niche overlap in explaining global patterns of species diversity. 53rdAnnual Meeting of the Association for Tropical Biology and Conservation, Montpellier, France.