EcoSimR 0.1.0

custom header test

Minimum size difference

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.

Description

Function to calculate the minimum absolute size difference between species within an assemblage.

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.

Examples

MinSizeDif <- min_diff(rgamma(20,shape=3,scale=2))