Coleman Expected Accumulation

Compute the expected species accumulation curve using the Coleman method (Coleman et al. 1982). This is an analytical formula, no simulation needed.

Usage

coleman(x)

Arguments

x

A site-by-species matrix (presence/absence or abundance).

Value

A data.frame with columns: sites, expected, sd

References

Coleman, B.D., Mares, M.A., Willig, M.R. & Hsieh, Y.H. (1982). Randomness, area, and species richness. Ecology, 63, 1121-1133.