a resource utilization matrix (rows = species, columns = discrete
resource states) filled with non-negative real numbers.
Value
Returns a random utilization matrix with the same dimensions as the
input matrix.
Details
The resource utilization matrix (rows = species, columns = discrete
resource categories) may include zeroes, but no negative numbers or missing
values. Relative resource within a species is first calculated, so the rows
need not sum to 1.0.
References
Kobayashi, S. 1991. Interspecific relations in forest floor
coleopteran assemblages: niche overlap and guild structure. Researches
in Population Ecology 33: 345-360.
Winemiller, K.O. and E.R. Pianka. 1990. Organization in natural
assemblages of desert lizards and tropical fishes. Ecological Monographs
60: 27-55.