The article is devoted to the international project — “The Eurasian Chronicle of Nature: a large-scale analysis of changing ecosystems”, the history of the project from 2011 to 2019 is given. The significance of the long-term data of the “Annals of Nature” of the protected areas when studying the dynamics of the biological diversity of the biota of Eurasia, including the assessment of the effects of climate change, is emphasized.Non peer reviewe
