Key points are not available for this paper at this time.
Roger Earl Latham, Robert E. Ricklefs, Global Patterns of Tree Species Richness in Moist Forests: Energy-Diversity Theory Does Not Account for Variation in Species Richness, Oikos, Vol. 67, No. 2 (Jun., 1993), pp. 325-333
Latham et al. (1993) studied this question.