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Gridded Global Amphibian Species Distribution: Family Richness Grids
The Family Richness Grids of the Gridded Global Amphibian Species Distribution are aggregations of the presence grids data at the family level. They are available in 30-arc second (1 kilometer) resolutions. The cell values represent the number of species in a particular family. 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).
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