NatureServe

About NatureServe: 

For nearly 50 years, NatureServe has been the authoritative source for biodiversity data throughout North America. With an international network of over 60 natural heritage programs across the United States, NatureServe is the leading source of information on rare and endangered species and threatened ecosystems. To protect threatened biodiversity, NatureServe works with over 500 conservation scientists to collect, aggregate, and standardize biodiversity statistics, providing comprehensive data to the public for strategic conservation efforts. NatureServe and its network programs develop and manage the most comprehensive data for over 100,000 species and ecosystems, answering fundamental questions about what the critical elements of biodiversity are, where they are found, and how they are doing.