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BEQI2 (version 1.0-0)

Benthic Ecosystem Quality Index 2

Description

Benthic Ecosystem Quality Index 2. This package facilitates the analysis of benthos data. It estimates several quality indices like the total abundance of species, species richness, Shannon index, AZTI Marine Biotic Index (AMBI), and the BEQI-2 index. The package includes two additional optional features that enhance data preprocessing: (1) genus to species conversion, i.e.,taxa counts at the taxonomic genus level can optionally be converted to the species level and (2) pooling: small samples are combined to bigger samples with a standardized size to (a) meet the data requirements of the AMBI, (b) generate comparable species richness values and (c) give a higher benthos signal to noise ratio.

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Version

Install

install.packages('BEQI2')

Monthly Downloads

3

Version

1.0-0

License

GPL (>= 3)

Maintainer

Dennis Walvoort

Last Published

April 16th, 2014

Functions in BEQI2 (1.0-0)

abundance

Abundance
readTWN

Read TWN Data
%inInterval%

Test if a Value is in an Interval
readERF

Read Ecotopes References File
readBEQI

Read BEQI input files
readITI

Read Infaunal Trophic Index File
BEQI2-pkg

Marine Benthic Ecosystem Quality Index
readSettings

Read BEQI Settings File
genusToSpecies

Genus to Species Conversion
speciesRichness

Species Richness
entropy

Shannon's Entropy
pool

Pooling
eqr

Ecological Quality Ratio (EQR)
BEQI2dir

Create BEQI-2 Directory Structure
readAMBI

Read AMBI Sensitivity Data
harmonize

Harmonize Case
rename

Renaming Taxon Names
beqi2

Perform BEQI-2 Analysis
stripSpaces

Remove Redundant Spaces
isAzoic

Test on Azoic Samples
readFIBI

Read Freshwater Inflow Biotic Index File