Species diversity of Trichoptera communities

  • J. O. Solem
Conference paper


Species diversity data from 19 light trap samplings are presented. Some data from England and Sweden were extracted from the literature. The extended negative binomial model was used in the calculation of the species diversity. Using α and k as population parameters with standard errors, the data were plotted in a diagram and appeared as ellipses. Species diversity for total flight periods, year to year, and seasonal variations are dealt with. The method seems to give a more detailed separation of communities than Shannon and Simpson indices.


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© Springer Science+Business Media Dordrecht 1978

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  • J. O. Solem

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