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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">10.35885/1684-7318-2020-3-318-335</article-id><article-id custom-type="elpub" pub-id-type="custom">sevin-213</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></article-categories><title-group><article-title>Структура ареала и динамика численности сурка (Marmota bobak Müller, 1776) (Sciuridae, Mammalia) в Саратовской области в конце ХХ – начале XXI столетий</article-title><trans-title-group xml:lang="en"><trans-title>Habitat Structure and Abundance Dynamics of Marmota bobak Müller, 1776 (Sciuridae, Mammalia) in the Saratov Region at the End of the 20th – Start of the 21st Centuries</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>Кондратенков</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondratenkov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>410028, Саратов, Рабочая, 24</p></bio><bio xml:lang="en"><p>24 Rabochaya St., Saratov 410028</p></bio><email xlink:type="simple">kondri60@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8575-5418</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Опарин</surname><given-names>М. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Oparin</surname><given-names>M. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>410028, Саратов, Рабочая, 24</p></bio><bio xml:lang="en"><p>24 Rabochaya St., Saratov 410028</p></bio><email xlink:type="simple">oparinml@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сухов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sukhov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>410012, Саратов, Университетская, 45/51</p></bio><bio xml:lang="en"><p>45/51 Universitetskaya St., Saratov 410012</p></bio><email xlink:type="simple">oparinml@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5581-4122</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Опарина</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Oparina</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>410028, Саратов, Рабочая, 24</p></bio><bio xml:lang="en"><p>24 Rabochaya St., Saratov 410028</p></bio><email xlink:type="simple">otis07@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Саратовский филиал Института проблем экологии и эволюции им. А. Н. Северцова РАН<country>Россия</country></aff><aff xml:lang="en">Saratov Branch of A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Комитет охотничьего хозяйства и рыболовства Саратовской области<country>Россия</country></aff><aff xml:lang="en">Committee of Hunting and Fishing of the Saratov Region<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>19</day><month>11</month><year>2020</year></pub-date><volume>0</volume><issue>3</issue><fpage>318</fpage><lpage>335</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кондратенков И.А., Опарин М.Л., Сухов С.В., Опарина О.С., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Кондратенков И.А., Опарин М.Л., Сухов С.В., Опарина О.С.</copyright-holder><copyright-holder xml:lang="en">Kondratenkov I.A., Oparin M.L., Sukhov S.V., Oparina O.S.</copyright-holder><license 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/213">https://sevin.elpub.ru/jour/article/view/213</self-uri><abstract><p>Представлены данные учетов численности степного сурка (Marmota bobak Müller, 1776), полученные в период с 1987 по 2019 гг. Все учеты были выполнены по одной методике, разработанной авторами в конце 1980-х гг. В ходе этих многолетних исследований была изучена структура ареала степного сурка в Саратовской области. Описана динамика его численности и выявлены ее тренды для отдельных групп районов, отличающихся тенденциями, временем появления новых поселений в результате реинтродукции после продолжительной депрессии численности, вызванной как распашкой степей, так и известными событиями 20-х, 30-х и 40-х гг. прошлого столетия, когда степной сурок обеспечивал выживание части населения. Установлено, что в коренных поселениях, которые существуют с конца плейстоцена – начала голоцена, пик численности пришелся на 1980 – 1990 гг. На территориях, где была проведена реинтродукция сурка, возникают новые поселения и продолжается рост численности вида. Это, в первую очередь, относится к западным склонам Приволжской возвышенности и Окско-Донской равнине, прежде заселенным сурком. Рост численности казахстанского подвида байбака наблюдается на восточной оконечности Сыртовой равнины и на отрогах Общего Сырта в саратовском Заволжье. Генетические исследования степных сурков, выполненные в правобережье Ульяновской области Р. В. Наумовым (2019), показали, что на обширной территории Поволжья обитает генетически однородное население. Это ставит под сомнение предположение о существовании подвида Marmota bobak Kozlovi на локальных территориях Воскресенского, Вольского и Хвалынского районов Саратовской области, послужившее основанием для его включения в новое издание Красной книги области, которое авторы статьи считают необоснованным (Постановление…, 2019).</p></abstract><trans-abstract xml:lang="en"><p>The paper presents data on the abundance of bobak marmot (Marmota bobak Müller, 1776), obtained from 1987 till 2019. All censuses were performed according to one technique developed by us in the late 1980s. During these long-term investigations, the structure of the bobak marmot areal in the Saratov region was studied. The dynamics of its numbers is described, and its trends for individual groups of districts were revealed, distinguished by trends, the time of the appearance of new settlements as a result of reintroduction after a prolonged depression in the numbers caused by both plowing of the steppes and the well-known events of the 1920s, 1930s and 1040s, when the bobak marmot provided the survival of some part of the population. It has been established that the population peak in the indigenous settlements that have been existing from the end of the Pleistocene – the beginning of the Holocene, was in 1980–1990. New settlements arise in the territories where the marmot was reintroduced, and the species abundance continues to grow. This, first of all, refers to the western slopes of the Volga Upland and the Oka-Don plain, formerly inhabited by marmots. An increase in the numbers of the Kazakhstan subspecies of the bobak is observed at the eastern end of the Syrt plain and on the spurs of the Common Syrt in the Saratov Trans-Volga region. The genetic studies of steppe marmots by R. V. Naumov (2019) on the right Volga bank of the Ulyanovsk region showed that a genetically homogeneous population lives on the vast territory of the Volga region. This casts doubt on the assumption of the existence of the Kozlovi subspecies of the bobak marmot in the local territories of the Voskresensk, Volsk and Khvalynsk districts of the Saratov region, which served as the ground for its inclusion into the new edition of the Red Data Book of the region, which we consider unreasonable (Resolution..., 2019).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>степной сурок</kwd><kwd>динамика численности</kwd><kwd>структура ареала</kwd><kwd>Саратовская область</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bobak marmot</kwd><kwd>population dynamics</kwd><kwd>habitat structure</kwd><kwd>Saratov region</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Абрамсон Н. И. Филогеография : итоги, проблемы, перспективы // Информационный вестн. ВОГиС. 2007. Т. 11, № 2. С. 307 – 331.</mixed-citation><mixed-citation xml:lang="en">Abramson N. I. 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