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untb (version 1.6-3)

ecological drift under the UNTB

Description

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.

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Version

Install

install.packages('untb')

Monthly Downloads

181

Version

1.6-3

License

GPL

Maintainer

Robin K S Hankin

Last Published

April 3rd, 2010

Functions in untb (1.6-3)

optimal.prob

Returns an estimate of the fundamental biodiversity number
volkov

Expected frequency of species
bci

Barro Colorado Island (BCI) dataset
butterflies

abundance data for butterflies
census

Construct, coerce, and test for a census object
zsm

Zero sum multinomial distribution as derived by McKane
sahfos

Biodiversity dataset provided by SAHFOS
optimal.params.sloss

Estimation of neutral community parameters using a two-stage maximum-likelihood procedure
saunders

Dataset due to Saunders
isolate

Randomly select a subset of an ecosystem
ghats

Tree counts in 1-ha plots from the Western Ghats mountains (South India)
theta.prob

Posterior probabilities for theta
species.count

Ecosystem diagnostics for output of untb()
simpson

Simpson's diversity index
phi

Hubbell's phi
extractor

Extract rows of a database in count form
vallade

Various functions from Vallade and Houchmandzadeh
display.untb

Animation of neutral ecological drift
optimal.params.gst

Estimation of local immigration using GST(k) statistics
print.preston

Print and plot objects of class Preston
etienne

Etienne's sampling formula
count

Construct, coerce, and test for a count object
summary.count

Summary methods for count and census objects
untb

Ecological drift simulation under the Unified Neutral Theory of Biodiversity
no.of.ind

Ecosystem diagnostics
plot.count

Abundance curves
logS1

logarithms of Stirling numbers of the first kind
caruso

Dataset due to Caruso
preston

Preston diagram of an ecosystem
print.summary.count

Print method for summary objects
logkda

Etienne's K(D,A)
alonso

Various functions from Alonso and McKane 2004
copepod

Copepod data supplied by Phil Pugh
expected.abundance

Expected abundances under the neutral model
fisher

Various functionality to implement Fisher's logseries
rand.neutral

Random neutral ecosystem
untb-package

Unified neutral theory of biodiversity
+.count

Add two count objects