ecospat.co_occurrences

0th

Percentile

Species Co-Occurrences

Calculate an index of species co-occurrences.

Usage
ecospat.co_occurrences (data)
Arguments
data

A presence-absence matrix for each species (columns) in each location or grid cell (rows) or a matrix with predicted suitability values.

Details

Computes an index of co-occurrences ranging from 0 (never co-occurring) to 1 (always co-occuring).

Value

The species co-occurrence matrix and box-plot of the co-occurrence indices

References

Pellissier, L., K.A. Brathen, J. Pottier, C.F. Randin, P. Vittoz, A. Dubuis, N.G. Yoccoz, T. Alm, N.E. Zimmermann and A. Guisan. 2010. Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants. Ecography, 33, 1004-1014.

Guisan, A. and N. Zimmermann. 2000. Predictive habitat distribution models in ecology. Ecological Modelling, 135:147-186

Aliases
  • ecospat.co_occurrences
Examples
# NOT RUN {
matrix <- ecospat.testData[c(9:16,54:57)]
ecospat.co_occurrences (data=matrix)
# }
Documentation reproduced from package ecospat, version 3.0, License: GPL

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