betapart (version 1.1-2)

beta.multi: Multiple-site dissimilarities

Description

Computes 3 multiple-site dissimilarities accounting for the spatial turnover and the nestedness components of beta diversity, and the sum of both values

Usage

beta.multi(x, index.family="sorensen")

Arguments

x

data frame, where rows are sites and columns are species. Alternatively x can be a betapart object derived from the betapart.core function

index.family

family of dissimilarity indices, partial match of "sorensen" or "jaccard".

Value

• The function returns a list with the three multiple site dissimilarity values. For index.family="sorensen" the three indices are:
• beta.SIM
  value of the turnover component, measured as Simpson dissimilarity
• beta.SNE
  value of the nestedness component, measured as Nestedness-resultant fraction of Sorensen dissimilarity
• beta.SOR
  value of the overall beta diversity, measured as Sorensen dissimilarity
• For index.family="jaccard" the three indices are:
• beta.JTU
  value of the turnover component, measured as turnover fraction of Jaccard dissimilarity
• beta.JNE
  value of the nestedness component, measured as Nestedness-resultant fraction of Jaccard dissimilarity
• beta.JAC
  value of the overall beta diversity, measured as Jaccard dissimilarity

encoding

utf8

References

Baselga, A. 2010. Partitioning the turnover and nestedness components of beta diversity. Global Ecology and Biogeography 19:134-143 Baselga, A. 2012. The relationship between species replacement, dissimilarity derived from nestedness, and nestedness. Global Ecology and Biogeography, in press

See Also

beta.pair, beta.sample, betapart.core, beta.temp

Examples

data(ceram.s)
ceram.beta<-beta.multi(ceram.s, index.family="sor")