https://dspace01.hit.no/handle/2282/534 (Fig. 2 shows the distribution of beavers in Russia, Mongolia and Kazakhstan, 2003))

http://link.springer.com/chapter/10.1007/978-1-4615-4781-5_4 about beavers in Russia and adjoining countries (1999)

http://link.springer.com/article/10.1023/A:1020911800651 (about their natural movements in Russia, 2002)

Thank You for information. I needed this information. Best regards

Hi Mirek!

Look this papers from some regions of Russia

http://cyberleninka.ru/article/n/sredoobrazuyuschaya-deyatelnost-bobra-v-razlichnyh-ekosistemah-tatarstana (THE STUDYING OF TERRITORIES NEAR BEAVER PONDS DURING ABNORMAL DROUGHT PERIOD)

http://cyberleninka.ru/article/n/analiz-metodov-izucheniya-dinamiki-chislennosti-populyatsii-bobra-castor-fiber (Zotov D.V. Analysis of methods of studying of dynamics of the beaver population number (Castor fiber))

Hi Denis, It's great that you sent me the paper. I'll have something to read, and I remember the Russian language :)

Thank You very much.

Best regards

Mirek, some data about beaver activity in NW Mongolia in attached Artikul. And see www.beaversymposium.com Pozdrawlaju