Transcription of SpeciesRichness Estimation and Comparison
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SpeciesRichness Estimation and Comparison
Chao, A. and Chiu, C. H. (2016). Species richness: Estimation and Comparison . Wiley StatsRef: Statistics Reference Online. 1-26. Species Richness: Estimation and Comparison Anne Chao and Chun-Huo Chiu INSTITUTE OF STATISTICS, NATIONAL TSING HUA. UNIVERSITY, HSIN-CHU, TAIWAN. This article was originally published online in 2006 in Encyclopedia of Statistical Sciences, John Wiley & Sons, Inc. and republished in Wiley StatsRef: Statistics Reference Online, 2014. Keywords: abundance data, extrapolation, incidence data, interpolation, rarefaction, sample coverage, species richness, standardization Abstract: On the basis of the sampling data from an assemblage, Estimation of species richness (observed plus undetected) is statistically difficult especially for highly-diverse assemblages with many rare species. Simple counts of species richness in samples typically underestimate and strongly depend on sampling effort and sample completeness.
4 S N i 1 Ni be the total population size. The relative abundance of species i is pi = Ni/N, so that S i 1 pi 1.Here N, S, Ni, and pi represent the true but unknown underlying parameters of the assemblage. We distinguish between two sampling data structures.
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