untb v1.7-2


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ecological drift under the UNTB

A collection of utilities for biodiversity data. Includes the simulation of ecological drift under Hubbell's Unified Neutral Theory of Biodiversity, and the calculation of various diagnostics such as Preston curves. Now includes functionality provided by Francois Munoz and Andrea Manica.

Functions in untb

Name Description
alonso Various functions from Alonso and McKane 2004
fisher Various functionality to implement Fisher's logseries
count Construct, coerce, and test for a count object
simpson Simpson's diversity index
vallade Various functions from Vallade and Houchmandzadeh
optimal.prob Returns an estimate of the fundamental biodiversity number
isolate Randomly select a subset of an ecosystem
bci Barro Colorado Island (BCI) dataset
expected.abundance Expected abundances under the neutral model
caruso Dataset due to Caruso
preston Preston diagram of an ecosystem
phi Hubbell's phi
optimal.params.sloss Estimation of neutral community parameters using a two-stage maximum-likelihood procedure
spitale Counts of diatom species in springs of the Adamello-Brenta Nature Park
species.count Ecosystem diagnostics for output of untb()
sahfos Biodiversity dataset provided by SAHFOS
census Construct, coerce, and test for a census object
zsm Zero sum multinomial distribution as derived by McKane
logS1 logarithms of Stirling numbers of the first kind
summary.count Summary methods for count and census objects
extractor Extract rows of a database in count form
copepod Copepod data supplied by Phil Pugh
untb-package Unified neutral theory of biodiversity
theta.prob Posterior probabilities for theta
untb Ecological drift simulation under the Unified Neutral Theory of Biodiversity
+.count Add two count objects
ghats Tree counts in 1-ha plots from the Western Ghats mountains (South India)
display.untb Animation of neutral ecological drift
optimal.params.gst Estimation of local immigration using GST(k) statistics
saunders Dataset due to Saunders
no.of.ind Ecosystem diagnostics
etienne Etienne's sampling formula
plot.count Abundance curves
print.preston Print and plot objects of class Preston
volkov Expected frequency of species
butterflies abundance data for butterflies
print.summary.count Print method for summary objects
logkda Etienne's K(D,A)
rand.neutral Random neutral ecosystem
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Last month downloads


Type Package
Date 2009-26-02
SystemRequirements PARI/GP >= 2.3.0 [strongly recommended for logkda()]
License GPL
URL http://www.r-project.org
Packaged 2013-12-12 18:58:21 UTC; rhankin
NeedsCompilation no
Repository CRAN
Date/Publication 2013-12-12 20:26:25

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