Niche Region and Niche Overlap Metrics for Multidimensional Ecological Niches

Implementation of a probabilistic method to calculate 'nicheROVER' (_niche_ _r_egion and niche _over_lap) metrics using multidimensional niche indicator data (e.g., stable isotopes, environmental variables, etc.). The niche region is defined as the joint probability density function of the multidimensional niche indicators at a user-defined probability alpha (e.g., 95%). Uncertainty is accounted for in a Bayesian framework, and the method can be extended to three or more indicator dimensions. It provides directional estimates of niche overlap, accounts for species-specific distributions in multivariate niche space, and produces unique and consistent bivariate projections of the multivariate niche region. The article by Swanson et al. (Ecology, 2015) provides a detailed description of the methodology. See the package vignette for a worked example using fish stable isotope data.


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install.packages("nicheROVER")

1.1.0 by Martin Lysy, 4 months ago


Browse source code at https://github.com/cran/nicheROVER


Authors: Martin Lysy [aut, cre] , Ashley D. Stasko [aut] , Heidi K. Swanson [aut]


Documentation:   PDF Manual  


GPL-3 license


Imports graphics, stats, utils

Suggests knitr, rmarkdown


See at CRAN