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- Title
A comparison of three diversity indices based on their components of richness and evenness.
- Authors
DeJono, T. M.
- Abstract
Species diversity was calculated using three different indices on sets of real and artificial data. Each index was analyzed to determine Its relationship to the two component parts of diversity, richness and evenness. Shannon's information formula, H' = CΣp1 log2 p1. is found to be linearly related to evenness and to the log2 of the number of species. Simpson's Index, D = 1 - ... and McIntosh's Index, D' = ..., when expressed in probits are found to be linearly related to evenness and to the logs of the number of species. Relationships between, and usefulness of, the indices are discussed.
- Subjects
SPECIES diversity; BIODIVERSITY; PROBABILITY theory; DISTRIBUTION (Probability theory); BIOMATHEMATICS; BIOLOGY
- Publication
Oikos, 1975, Vol 26, Issue 2, p222
- ISSN
0030-1299
- Publication type
Article