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untb (version 1.7-3)

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

1.7-3

License

GPL

Maintainer

Robin K S Hankin

Last Published

March 19th, 2018

Functions in untb (1.7-3)

count

Construct, coerce, and test for a count object
alonso

Various functions from Alonso and McKane 2004
display.untb

Animation of neutral ecological drift
butterflies

abundance data for butterflies
bci

Barro Colorado Island (BCI) dataset
etienne

Etienne's sampling formula
caruso

Dataset due to Caruso
expected.abundance

Expected abundances under the neutral model
optimal.params.sloss

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

Estimation of local immigration using GST(k) statistics
optimal.prob

Returns an estimate of the fundamental biodiversity number
census

Construct, coerce, and test for a census object
extractor

Extract rows of a database in count form
copepod

Copepod data supplied by Phil Pugh
simpson

Simpson's diversity index
fisher

Various functionality to implement Fisher's logseries
preston

Preston diagram of an ecosystem
logS1

logarithms of Stirling numbers of the first kind
+.count

Add two count objects
logkda

Etienne's K(D,A)
saunders

Dataset due to Saunders
ghats

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

Unified neutral theory of biodiversity
isolate

Randomly select a subset of an ecosystem
rand.neutral

Random neutral ecosystem
no.of.ind

Ecosystem diagnostics
sahfos

Biodiversity dataset provided by SAHFOS
summary.count

Summary methods for count and census objects
theta.prob

Posterior probabilities for theta
phi

Hubbell's phi
spitale

Counts of diatom species in springs of the Adamello-Brenta Nature Park
plot.count

Abundance curves
species.count

Ecosystem diagnostics for output of untb()
print.preston

Print and plot objects of class Preston
volkov

Expected frequency of species
print.summary.count

Print method for summary objects
vallade

Various functions from Vallade and Houchmandzadeh
zsm

Zero sum multinomial distribution as derived by McKane
untb

Ecological drift simulation under the Unified Neutral Theory of Biodiversity