nicheROVER: 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.

Version: 1.1.0
Depends: R (≥ 1.9.0)
Imports: graphics, stats, utils
Suggests: knitr, rmarkdown
Published: 2021-06-03
Author: Martin Lysy [aut, cre], Ashley D. Stasko [aut], Heidi K. Swanson [aut]
Maintainer: Martin Lysy <mlysy at>
License: GPL-3
NeedsCompilation: no
CRAN checks: nicheROVER results


Reference manual: nicheROVER.pdf
Vignettes: An Ecologist's Guide to nicheROVER
Package source: nicheROVER_1.1.0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): nicheROVER_1.0.tgz, r-release (x86_64): nicheROVER_1.1.0.tgz, r-oldrel: nicheROVER_1.1.0.tgz
Old sources: nicheROVER archive


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