Published by the Foundation for Open Access Statistics Editors-in-chief: Bettina Grün, Torsten Hothorn, Rebecca Killick, Edzer Pebesma, Achim Zeileis    ISSN 1548-7660; CODEN JSSOBK
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Authors: Christina D. Smith, Jeffrey S. Pontius
Title: Jackknife Estimator of Species Richness with S-PLUS
Abstract: An estimate of the number of species, S , usually called species richness by ecologists, in an area is one of the basic statistics used to ascertain biological diversity. Traditionally ecologists have used the number of species observed in a sample, S0 , to estimate S , realizing that S0 is a lower bound for S . One alternative to S0 is to use a nonparametric procedure such as jackknife resampling. For species richness, a closed form of the jackknife estimator is available. Typically statistical software contains only the traditional iterative form of the jackknife estimator. The purpose of this article is to propose an S-PLUS function for calculating the noniterative first order jackknife estimator of species richness and some associated plots and statistics.

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Paper: Jackknife Estimator of Species Richness with S-PLUS     Download PDF (Downloads: 14192)
Supplements: jack.S: S code Download (Downloads: 1169; 1KB)

DOI: 10.18637/jss.v015.i03

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Paper: Creative Commons Attribution 3.0 Unported License
Code: GNU General Public License (at least one of version 2 or version 3) or a GPL-compatible license.