DIVA-GIS version 1.4 : A geographic information system for the analysis of biodiversity data, manual.
2001
Hijmans, R. | Cruz, M. | Rojas, E. | Guarino, L.
The DIVA-GIS version 1.4 software supports the analysis of genebank and herbarium databases to elucidate genetic, ecological and geographic patterns in the distribution of crops and wild species. It is aimed at scientists who cannot afford generic commercial geographic information system (GIS) software, or do not have the time to learn how to use these, and for anyone else who wants a GIS tailor-made for genetic resources. Coordinate data in genebank databases are often absent, and the records that do have coordinate data are sometimes inaccurate. This makes spatial analysis of genebank data more complicated. DIVA-GIS helps to improve data quality by the automated assigning of coordinates, using a large digital gazetteer. DIVA-GIS can also be used to check existing coordinates using overlays (simultaneous spatial queries) of the collection sites and administrative boundaries databases. Maps can then be made of the locations where accessions were collected. Analytical functions implemented in DIVA-GIS include mapping of richness and diversity; distribution of useful traits; and identification of areas with complementary diversity. DIVA-GIS can also extract climate data for all locations on land. These can be used for "retro-classification" of the environment of collection sites.
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