Revision of the Red Data Book of the Yamal-Nenets Autonomous Okrug has been completed and materials for a revised edition prepared. The regional Red Data Book includes articles on 140 species of flora and fauna. The Red Book contains state-of-the-art information about rare and endangered species of animals, plants and fungi, which exist within the territory of Yamal-Nenets Autonomous Okrug. Occurrence and distribution of rare and endangered species in the territory are estimated; threats to rare species populations and distribution limiting factors are characterized; and a status reports are drawn up on the rare and endangered species monitored over the last 10--15 years.

For each species, the regional Red Data Book provides illustrations (original drawings and photos), distribution maps, rarity ranks, a short description of morphology, distribution data (generally and specifically within the Okrug), data on population and limiting factors, data on protection measures required, and a comprehensive bibliography. The book is intended for experts in the nature conservancy field, for research workers, students and teachers, for nature-lovers and regional specialists. Threat status reports on endangered taxons will be assumed as the basis for providing updates to the Red Data Book, and will create a managerial decision-making rationale for appropriate nature conservation.