README.md

In gfalbery/SpRanger:

SpRanger

Tools for deriving and manipulating IUCN species ranges and creating overlap matrices.

Get the ranges from here: https://www.iucnredlist.org/resources/spatial-data-download

Change them to rasters with this script:

RangePlot will plot (a list of) species' ranges on the earth.

Get proportional species overlaps with PairsWisely, which takes a rasterstack with one layer per species and returns a square overlap matrix where each row and column is a species and each cell is a proportion of raster grid cells that both species inhabit.

GetIntersects will take the rasterstack and iteratively produce a list of range overlap rasters, one range per species pair. I highly recommend using PairsWiselyfirst to get the range overlap matrix, then feeding that into the Predicate argument. It will save bags of time, as the function will avoid wasting time getting range overlaps for species that you already know don't overlap at all.

gfalbery/SpRanger documentation built on Nov. 25, 2022, 4:41 a.m.