Goslee, Sarah
(Ed.)
1. The geodiv r package calculates gradient surface metrics from imagery and other
gridded datasets to provide continuous measures of landscape heterogeneity for
landscape pattern analysis.
2. geodiv is the first open-source, command line toolbox for calculating many gradient surface metrics and easily integrates parallel computing for applications with
large images or rasters (e.g. remotely sensed data). All functions may be applied
either globally to derive a single metric for an entire image or locally to create a
texture image over moving windows of a user-defined extent.
3. We present a comprehensive description of the functions available through geodiv.
A supplemental vignette provides an example application of geodiv to the fields of
landscape ecology and biogeography.
4. geodiv allows users to easily retrieve estimates of spatial heterogeneity for a variety
of purposes, enhancing our understanding of how environmental structure influences ecosystem processes. The package works with any continuous imagery and
may be widely applied in many fields where estimates of surface complexity are
useful.
more »
« less
