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untb (version 1.6-8)

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

363

Version

1.6-8

License

GPL

Maintainer

Robin K S Hankin

Last Published

August 11th, 2011

Functions in untb (1.6-8)

alonso

Various functions from Alonso and McKane 2004
copepod

Copepod data supplied by Phil Pugh
caruso

Dataset due to Caruso
count

Construct, coerce, and test for a count object
expected.abundance

Expected abundances under the neutral model
isolate

Randomly select a subset of an ecosystem
fisher

Various functionality to implement Fisher's logseries
optimal.params.gst

Estimation of local immigration using GST(k) statistics
preston

Preston diagram of an ecosystem
no.of.ind

Ecosystem diagnostics
census

Construct, coerce, and test for a census object
phi

Hubbell's phi
sahfos

Biodiversity dataset provided by SAHFOS
print.summary.count

Print method for summary objects
plot.count

Abundance curves
print.preston

Print and plot objects of class Preston
butterflies

abundance data for butterflies
rand.neutral

Random neutral ecosystem
theta.prob

Posterior probabilities for theta
ghats

Tree counts in 1-ha plots from the Western Ghats mountains (South India)
logS1

logarithms of Stirling numbers of the first kind
bci

Barro Colorado Island (BCI) dataset
etienne

Etienne's sampling formula
vallade

Various functions from Vallade and Houchmandzadeh
logkda

Etienne's K(D,A)
extractor

Extract rows of a database in count form
optimal.params.sloss

Estimation of neutral community parameters using a two-stage maximum-likelihood procedure
optimal.prob

Returns an estimate of the fundamental biodiversity number
display.untb

Animation of neutral ecological drift
+.count

Add two count objects
species.count

Ecosystem diagnostics for output of untb()
saunders

Dataset due to Saunders
untb

Ecological drift simulation under the Unified Neutral Theory of Biodiversity
summary.count

Summary methods for count and census objects
untb-package

Unified neutral theory of biodiversity
volkov

Expected frequency of species
simpson

Simpson's diversity index
zsm

Zero sum multinomial distribution as derived by McKane