niche.overlap.pair: Compute niche overlap index between two species

In spaa: SPecies Association Analysis

Compute niche overlap index between two species

Description

Compute niche overlap index between two species. This is an internal function, used niche.overlap instead.

Usage

niche.overlap.pair(vectA, vectB, method = c("pianka",
     "schoener","petraitis","czech","morisita", "levins"))

Arguments

vectA	A numeric vector containing species A's abundance or importance value
vectB	A numeric vector containing species B's abundance or importance value
method	Niche overlap index

Details

None

Value

The niche overlap index

Author(s)

Jinlong Zhang [e-mail]

References

Zhang Jin-tun,(2004 ) Quantitative Ecology, Science Press, Beijing

Nicholas J. Gotelli. 2000. Null model analysis of species co-occurrence patterns. Ecology 81:2606-2621. http://esapubs.org/archive/ecol/E081/022/EcoSim

See Also

niche.overlap

Examples

data(datasample)
niche.overlap.pair(datasample[,1],datasample[,2], method = "levins")

spaa documentation built on April 4, 2025, 2:41 a.m.