A shapefile is downloaded and converted to a SpatialPolygonsDataFrame
with additional columns of data. The resulting file will be created
in the spatial data directory which is set with setSpatialDataDir()
convertTerrestrialEcoregions(nameOnly = FALSE, simplify = TRUE)
logical specifying whether to only return the name without creating the file
logical specifying whether to create a "_05" version of the file that is simplified to 5%
Name of the dataset being created.
https://www.worldwildlife.org/publications/terrestrial-ecoregions-of-the-world