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The number of species occurring in a sample of a biotic community and its connections with species‐abundance relationship and spatial distribution
Author(s) -
Kobayashi Shiro,
Kimura Katsuhiko
Publication year - 1994
Publication title -
ecological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.628
H-Index - 68
eISSN - 1440-1703
pISSN - 0912-3814
DOI - 10.1007/bf02348414
Subject(s) - abundance (ecology) , relative abundance distribution , species diversity , spatial distribution , ecology , global biodiversity , species distribution , relative species abundance , logarithm , mathematics , biology , statistics , biodiversity , habitat , mathematical analysis
Connections among species‐abundance ( i‐m i ), species‐frequency ( i‐F i ), and species‐sample size ( S n ‐n ) relationships were examined on the basis of the mapping data of a natural forest in Thailand. The spatial distribution of individual trees without any discrimination of species was nearly random. Provided that the spatial distribution of each species was random, the i‐m i and the i‐F i relationship was reconstructed from each other in terms of the total number of species ( S ) and the total number of individuals ( N ) in the data. The number of species ( S n ) in a subsample consisting of n individuals was then obtained from the i‐F i relationship. Logarithm of S n increased with log n and showed a convex curve through the origin. The values of diversity indices based on N and S (or n and S n ) were affected by sample size. These trends were further examined on the basis of 944 data sets of biotic communities and three mathematical models of an S‐N relationship. The properties of species‐area relation were discussed in the light of these results.