downloadBII

Download a Biodiversity Intactness Index dataset from the Natural History Museum. Two subtypes: * "Phillips" (default) – Phillips et al. 2021 BII-BTE (doi:10.5519/he1eqmg1 ); country/region tables, 1970-2050 incl. SSPs. * "DePalma" – De Palma et al. 2024 NHM v2.1.1 (doi:10.5519/k33reyb6 ); global 5 arc-minute GeoTIFFs for 2000, 2005, 2010, 2015, 2020.

Usage

downloadBII(subtype = "Phillips")

Arguments

subtype

"Phillips" (default) or "DePalma".

Value

Metadata on the downloaded BII data.

Details

Both NHM resource URLs are behind Cloudflare and return HTTP 403 to non-browser clients, so both downloads use the portal's content-addressable /downloads/direct/<sha>.zip endpoint, which bypasses the challenge. Phillips uses the CSV resource (the .rds resource has no working direct URL); De Palma uses the v2.1.1 raster ZIP. If a URL becomes unreachable, download via a browser and place the file in this source folder.

See also

https://data.nhm.ac.uk/dataset/bii-bte, readBII

Author

Michael Crawford, Florian Humpenoeder

Examples

if (FALSE) { # \dontrun{
  downloadSource("BII")
  downloadSource("BII", subtype = "DePalma")
} # }