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Abstract <p>The most characteristic plant communities of the dwarf birches <i>Betula nana</i> and <i>B. humilis</i> were identified and described. The current range of <i>B. nana</i> and <i>B. humilis</i> in the Urals, Cis-Urals, and Trans-Urals was modeled using MaxEnt software, taking into account climatic and edaphic factors. The ecological optima of limiting factors for <i>B. nana</i> and <i>B. humilis</i> in the Urals are shown. The wider ecological range of <i>B.&#xa0;nana</i> compared to <i>B. humilis</i> allows this species successful adaptation to a wide range of altitudinal and latitudinal conditions, including mires of different trophic status. The dependence of <i>B. humilis</i> on the warm and cold quarters temperatures and the availability of groundwater determines its limited occurrence in the Ural Mountains.</p>

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Ecological Characteristics of Dwarf Birch Populations in Wetlands and Tundra in the Urals

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • S. O. Medvedeva,
  • A. D. Demin,
  • O. E. Cherepanova,
  • T. G. Ivchenko

摘要

Abstract

The most characteristic plant communities of the dwarf birches Betula nana and B. humilis were identified and described. The current range of B. nana and B. humilis in the Urals, Cis-Urals, and Trans-Urals was modeled using MaxEnt software, taking into account climatic and edaphic factors. The ecological optima of limiting factors for B. nana and B. humilis in the Urals are shown. The wider ecological range of B. nana compared to B. humilis allows this species successful adaptation to a wide range of altitudinal and latitudinal conditions, including mires of different trophic status. The dependence of B. humilis on the warm and cold quarters temperatures and the availability of groundwater determines its limited occurrence in the Ural Mountains.