| multiplicativeBeta {velociraptr} | R Documentation |
Multiplicative Diversity Partitioning
Description
Calculates beta diversity under various Multiplicative Diversity Partitioning paradigms.
Usage
multiplicativeBeta(CommunityMatrix)
completeTurnovers(CommunityMatrix)
notEndemic(CommunityMatrix)
Arguments
CommunityMatrix |
a matrix |
Details
Takes a community matrix (see presenceMatrix or abundanceMatrix) and returns one of three types of multiplicative beta diversity.
Refer to Tuomisto, H (2010) "A diversity of beta diversities: straightening up a concept gone awry. Part 1. Defining beta diversity as a function of alpha and gamma diversity". Ecography 33:2-22.
multiplicativeBeta(CommunityMatrix):Calculates the original beta diversity ratio - Gamma/Alpha. It quantifies how many times as rich gamma is than alpha.completeTurnovers(CommunityMatrix):The number of complete effective species turnovers observed among compositonal units in the dataset - (Gamma-Alpha)/Alpha.notEndemic(CommunityMatrix):The proportion of taxa in the dataset not limited to a single sample - (Gamma-Alpha)/Gamma
Value
A numeric vector
Author(s)
Andrew A. Zaffos
Examples
# Download a test dataset of pleistocene bivalves from the Paleobiology Database.
# DataPBDB<-downloadPBDB(Taxa="Bivalvia","Pleistocene","Pleistocene")
# Create a community matrix with tectonic plates as "samples".
# CommunityMatrix<-abundanceMatrix(DataPBDB,"geoplate")
# "True local diversity ratio"
# multiplicativeBeta(CommunityMatrix)
# Whittaker's effective species turnover
# completeTurnovers(CommunityMatrix)
# Proportional effective species turnover
# notEndemic(CommunityMatrix)