A presence-absence matrix for each species (columns) in each location or grid cell (rows) or a matrix with predicted suitability values.
Value
Details
Computes an index of co-occurrences ranging from 0 (never co-occurring) to 1 (always co-occuring).
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