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- Recommended Citation(s)*:
Center for International Earth Science Information Network - CIESIN - Columbia University, and NatureServe. 2008. Gridded Species Distribution, Version 1: Birds of the Americas Family Richness Grids. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). http://sedac.ciesin.columbia.edu/data/set/species-v1-americas-bird-family-richness. Accessed DAY MONTH YEAR.
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Grids representing an aggregation of the Presence Grids at the family level. For the Family Richness Grids each 30 arc-second grid cell represents a count of the number of species in that particular family.