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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">sevin</journal-id><journal-title-group><journal-title xml:lang="ru">ПОВОЛЖСКИЙ ЭКОЛОГИЧЕСКИЙ ЖУРНАЛ</journal-title><trans-title-group xml:lang="en"><trans-title>Povolzhskiy Journal of Ecology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1684-7318</issn><issn pub-type="epub">2541-8963</issn><publisher><publisher-name>Федеральное государственное бюджетное учреждение науки Институт проблем экологии и эволюции им. А. Н. Северцова РАН; Товарищество научных изданий КМК.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35885/1684-7318-2022-3-268-278</article-id><article-id custom-type="elpub" pub-id-type="custom">sevin-366</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ARTICLES</subject></subj-group></article-categories><title-group><article-title>Оценка биомассы кормовых макрофитов на модельном участке обитания евроазиатского бобра (Castor fiber Linnaeus, 1758) (Castoridae, Mammalia) в Государственном природном заповеднике «Приволжская лесостепь»</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of the biomass of forage macrophytes in a model habitat of the Eurasian beaver (Castor fiber Linnaeus, 1758) (Castoridae, Mammalia) in the State Nature Reserve “Volga forest-step”</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кацман</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Katzman</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кацман Елена Александровна</p><p>119071, г. Москва, Ленинский просп., д. 33</p></bio><bio xml:lang="en"><p>Elena A. Katzman</p><p>33 Leninsky Prosp., Moscow 119071</p></bio><email xlink:type="simple">elenkz05@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт проблем экологии и эволюции им. А. Н. Северцова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>12</day><month>11</month><year>2022</year></pub-date><volume>0</volume><issue>3</issue><fpage>268</fpage><lpage>278</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кацман Е.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Кацман Е.А.</copyright-holder><copyright-holder xml:lang="en">Katzman E.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://sevin.elpub.ru/jour/article/view/366">https://sevin.elpub.ru/jour/article/view/366</self-uri><abstract><p>Статья посвящена вопросам ресурсной емкости местообитаний чужеродного вида евроазиатского бобра (Castor fiber L.). Недостаточное кормообеспечение является сдерживающим фактором для расширения ареала этого вида, активно расселяющегося на территории Евразии в последние десятилетия. Комплексы травянистых болотно-водных растений (макрофитов) в определенных условиях могут быть значительным источником кормов для этих животных. Однако в периферийной части ареала, которая на данный момент ограничивается на юге лесостепной зоной, недостаточность развития водных макрофитов может приводить к сдерживанию расселения этого вида. Показано, что проведенные исследования важны с точки зрения понимания прогноза устойчивости существования популяций е</p></abstract><trans-abstract xml:lang="en"><p>The paper is devoted to the resource capacity of habitats of the Eurasian beaver (Castor fiber L.), an invasive species. Insufficient forage supply is a deterrent to the expansion of the range of this species, which has been actively settling in Eurasia in recent decades. Complexes of herbaceous wetland plants (macrophytes) under certain conditions can be a significant source of feed for these animals. However, at the edge of the range, which is currently limited to the forest-steppe zone in the south, the lack of development of aquatic macrophytes could lead to containment of the settlement of this species. It is shown that the conducted studies are important from the viewpoint of forecasting the stability of populations of the Eurasian beaver in the forest-steppe zone, assessing changes in their structure and abundance, and determining the limits of possible expansion of the species' range.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>травянистые водно-болотные растения</kwd><kwd>макрофиты</kwd><kwd>Castor fiber</kwd><kwd>модельные участки водоемов</kwd><kwd>абсолютно сухая биомасса</kwd><kwd>лесостепная зона</kwd></kwd-group><kwd-group xml:lang="en"><kwd>herbaceous wetland plants</kwd><kwd>macrophytes</kwd><kwd>Castor fiber</kwd><kwd>model areas of reservoirs</kwd><kwd>absolutely dry biomass</kwd><kwd>forest-steppe zone</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках темы государственного задания Института проблем экологии и эволюции им. А. Н. Северцова РАН по теме «Экология и биоразнообразие водных со</funding-statement><funding-statement xml:lang="en">The study was conducted in framework of the state assignment of the A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences on themes “Ecology and Biodiversity of Aquatic Communities” (No. АААА-А18-118042490059-5, 0089-2021-0006).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Антипов В. В., Дворников М. Г. Мониторинг, перспективы сохранения и рационального использования евразийского бобра (Castor fiber Linnaeus, 1758) в Самарской области // Самарский научный вестник. 2021. Т. 10, № 3. С. 19 – 24.</mixed-citation><mixed-citation xml:lang="en">Antipov V. V., Dvornikov M. G. 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