To provide a gridded version of existing vector maps of amphibian species distribution in which each grid cell is recoded to 1 (for present) or 0 (for not present) for use in modeling efforts.
Abstract:
The Global Amphibians Presence Grids of the Gridded Species Distribution, Version 1 is a reclassified version of the original grids of amphibian species distribution maps. The data include 1- kilometer presence/absence grids for individual species available in Geographic Coordinate System (GCS). The input vector layers were produced by a consortium led by NatureServe. The gridding and grid processing are done by the Columbia University Center for International Earth Science Information Network (CIESIN).
Recommended Citation:
Center for International Earth Science Information Network (CIESIN)/Columbia University, and NatureServe.
2008.
Gridded Species Distribution, Version 1: Global Amphibians Presence Grids.
Palisades,
NY:
NASA Socioeconomic Data and Applications Center (SEDAC).
http://sedac.ciesin.columbia.edu/data/set/species-v1-global-amphibian-presence. Accessed DAY MONTH YEAR.