Within this site you will find maps of biodiversity across our world. Its original inspiration came during the preparation of the scientific paper, "Global patterns of terrestrial vertebrate diversity and conservation", published in the Proceedings of the National Academy of Sciences in 2013. Seeing a need for more widely accessible maps of where the many species on this planet live, I took the first steps in building what would become BiodiveristyMapping.org. The first map was for salamanders, created while sitting in the Macon County Public Library in Franklin, NC, which also happens to be in the center of global salamander diversity.
Current maps available are for terrestrial vertebrates and are based on species range maps from the IUCN (mammals and amphibians) and BirdLife International and NatureServe (birds). Use the menu on the left to view pages full of maps for each group. Maps are free for academic and other non-commercial use, although please cite the original source so that others can find the site too. If using the data for scientific research, please cite the PNAS paper.
Jenkins, CN, SL Pimm, LN Joppa (2013) Global Patterns of Terrestrial Vertebrate Diversity and Conservation. PNAS 110(28): E2602-E2610. doi: 10.1073/pnas.1302251110 (PDF)
For those interested in the GIS layers used for these maps, they are available in two formats.
An ArcGIS Map Package can be downloaded here. It requires at least version 10.0 with service pack 1.
A zip file with GeoTIFFs can be downloaded here.
As a complement to the biodiversity data, the Natural Earth site is a good source for GIS data on political and biophysical features.
A description of the methods used in preparing the biodiversity maps can be found here.