Function to calculate the minimum absolute size difference
between species within an assemblage.
Usage
min_diff(m = runif(20))
Arguments
m
a vector of non-negative trait measures, one for each species
Value
Returns the minimum difference between adjacent, ordered values.
Details
Although this index is typically used to examine body size differences
in an animal assemblage, it could be used for any morphological index,
such as beak size, or for a phenological "trait", such as peak flowering time in a plant
assemblage.
References
Simberloff, D. and W.J. Boecklen. 1981. Santa Rosalia reconsidered: size
ratios and competition. Evolution 35: 1206-1228.