betapart.core {betapart} | R Documentation |
Computes the basic quantities needed for computing the multiple-site beta diversity measures and pairwise dissimilarity matrices.
betapart.core(x)
x |
data frame, where rows are sites and columns are species |
The function returns an object of class betapart
with the following elements:
sumSi |
the sum of the species richness values of all sites |
St |
the total richness in the dataset |
a |
the multiple-site analog of the shared species term |
shared |
a matrix containing the number of species shared between pairs of sites |
not.shared |
a matrix containing the number of species not shared between pairs of sites: b, c |
sum.not.shared |
a matrix containing the total number of species not shared between pairs of sites: b+c |
max.not.shared |
a matrix containing the total maximum number of species not shared between pairs of sites: max(b,c) |
min.not.shared |
a matrix containing the total minimum number of species not shared between pairs of sites: min(b,c) |
AndrĂ©s Baselga and David Orme
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 21, 1223-1232
beta.multi
, beta.pair
, beta.sample
, beta.temp
,
data(ceram.s)
ceram.core.s<-betapart.core(ceram.s)
ceram.dist.jac<-beta.pair(ceram.core.s, index.family="jac")
ceram.dist.sor<-beta.pair(ceram.core.s, index.family="sor")
ceram.multi.jac<-beta.multi(ceram.core.s, index.family="jac")
ceram.multi.sor<-beta.multi(ceram.core.s, index.family="sor")