Mexico occupies a very high position in biodiversity, especially for reptiles, mammals, amphibians, vascular plants and birds. The National Autonomous University of Mexico (UNAM) as well as other Mexican institutions, possess a treasure trove of collections gathered since the 19th century that keeps growing exponentially. Several research centers at UNAM and other academic institutions (such as the National Comission for Biodiversity (CONABIO) and the National Polytechnic Institute (IPN)) have developed Geographic Information Systems (GISs) concerning biodiversity and spatial information. As they have been developed independently, every GIS reflect both the idiosyncrasies of the software used in their implementation, and the peculiarities of each developing
institution.