turnover: Calculating species turnover
In spaa: SPecies Association Analysis

Description Usage Arguments Details Value Author(s) References See Also Examples

Calculating species turnover based on the mean value between focus quadrat and their neighbours.

1	turnover(lab.mat, dist.mat, type = c("quart", "octal"))

`lab.mat`	matrix of quadrat labels.
`dist.mat`	distance matrix between each pair of quadrats
`type`	"quart" indicates four neighbouring quadrats, "octal" indicate eight neighbouring quadrats.

species turnover based on the mean value between centred quadrat and its neighbours.

matrix with species turnover.

Jinlong Zhang jinlongzhang01@gmail.com

Lennon J. 2001 The geographical structure of British bird distributions - diversity, spatial turnover and scale Journal of Animal Ecology 70,966-979

XYname and lab.mat

##example turnover()
plotlab1 <- XYname(4,6)
xxx <- 1:240
dim(xxx) <- c(24, 10)
rownames(xxx) <- plotlab1
### Distance between each pair of plots
ddd <- dist(xxx)
### label matrix
labmat1 <- lab.mat(plotlab1)
yyy <- turnover(labmat1, ddd)