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A sensitivity analysis of nine diversity and seven similarity indices

Research Journal of the Water Pollution Control Federation
By: , and 

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Abstract

Indices summarizing community structure are used to evaluate fundamental community ecology, species interaction, biogeographical factors, and environmental stress. Some of these indices are insensitive to gross community changes induced by contaminants of pollution.


Sixteen indices commonly used to assess the status of aquatic communities in water quality studies were evaluated using computer simulation techniques to determine specific index responses. Three communities of different initial structure (19 species, 38 species, and 83 species) were generated using the lognormal equation. Each community was then perturbed in three ways: common species disproportionally reduced, all species proportionally reduced, and rare species disproportionally reduced. The behavior of the indices was analyzed graphically and differential response due to initial community structure and type of community change was documented. Some recommendations of potential sources of error using community levels indices were developed.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title A sensitivity analysis of nine diversity and seven similarity indices
Series title Research Journal of the Water Pollution Control Federation
Volume 62
Issue 6
Year Published 1990
Language English
Publisher Water Pollution Control Federation
Publisher location Alexandria, VA
Description 14 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Research Journal of the Water Pollution Control Federation
First page 749
Last page 762