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variable > diversity index

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diversity index  


  • [Henderson's] a measure of the biological diversity (generally the species diversity) within an environment. There are various types of diversity index, which are calcu­lated in various ways from the number of species present and their relative abund­ance (see e.g. Simpson diversity index). Such indices can be used to detect eco­logical changes due e.g. to stress on an environment. cf. biotic index.

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