Published November 7, 2022 | Version v1
Dataset Open

Global squamate presence-absence matrix

  • 1. Oklahoma State University
  • 2. University of Toronto
  • 3. University of British Columbia
  • 4. University of Georgia
  • 5. Tel Aviv University
  • 6. Ben-Gurion University of the Negev
  • 7. University of Arizona


This dataset contains a global presence-absence matrix for 10,215 species of terrestrial squamates (lizards and snakes), constructed from the GARD 1.5 species range shapefiles. Suitable for global diversity analyses using the R package LetsR. It consists of a list including three elements (1) a presence-absence matrix for all 96x96 km global terrestrial grid cells (48800 grid cells have at least one species), (2) a raster summarizing global richness patterns, and (3) a list of species.


This dataset is designed for use with the R package LetsR (Vilela and Villalobos 2015). While the file can be opened with nearly any plain text editor, the organization of the file is such that it would be difficult to use outside of the R programming environment with LetsR. It can be read using the "readRDS" command from LetsR. If you wish to use elements of it in other programs or packages, it would be best to read the file using LetsR and then export the individual elements.

Funding provided by: United States-Israel Binational Science Foundation
Crossref Funder Registry ID:
Award Number: BSF 2021030


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