Tree counts in 1-ha plots from the Western Ghats mountains (South India)

Tree species counts are given in 50 one-hectare sampling plots (species by sample matrix). This only includes trees over 10 cm dbh (diameter at breast height) and species labels (row names) are numeric.

Usage

data(ghats)

Format

Data frame displaying 304 species counts over 50 one-hectare plots.

Source

Ecological Archives E088-149-A1. http://www.esapubs.org/Archive/ecol/E088/149/appendix-A.htm

References

Francois Munoz, Pierre Couteron, B. R. Ramesh, and Rampal S. Etienne 2007. “Estimating parameters of neutral communities: from one single large to several small samples.” Ecology 88(10):2482-2488.

Examples

data(ghats)
# Rank-abundance picture of plot 1 (column 1 in ghats)
plot(extant(count(ghats[,1])))


#histogram of optimal theta across the 50 plots:
hist(apply(ghats,2,optimal.theta),col='gray')