1990 年 40 巻 3 号 p. 187-194
Correlations among nine indices of species diversity, HURLBERT's S(100), ITOW's b, FISHER's α, three varieties of SIMPSON's d, MCINTOSH's index, SHANNON's H', and PIELOU's J', were studied using measurements taken in 57 forests, from the humid tropical to the humid warm-temperate regions of East Asia, Pacific islands and Amazonian upstream. The indices were categorized into two groups according to their correlations. In first group, consisting of S(100), b, α and 1/d, values are sensitive to changes in species richness. (1-d), (1-d)/(1-d)max, MCINTOSH's index, H' and J' belong to the second group. The indices studied showed intra-but not inter-group correlation. The number of species occurring once in the community is significantly correlated with FISHER's α.