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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">10.35885/1684-7318-2021-3-272-292</article-id><article-id custom-type="elpub" pub-id-type="custom">sevin-277</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>Dactylorhiza incarnata (L.) Soó (Orchidaceae, Liliopsida) на северной границе ареала: структура популяций и семенная продуктивность</article-title><trans-title-group xml:lang="en"><trans-title>Dactylorhiza incarnata (L.) Soó (Orchidaceae, Liliopsida) on the northern border of its distribution area: Population structure and seed productivity</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7774-7709</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кириллова</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirillova</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кириллова Ирина Анатольевна - Отдел флоры и растительности Севера</p><p>167982, г. Сыктывкар, ул. Коммунистическая, д. 28</p></bio><bio xml:lang="en"><p>Irina A. Kirillova - Department of Flora and Vegetation of the North</p><p>28 Kommunisticheskaya St., Syktyvkar 16798228</p></bio><email xlink:type="simple">kirillova_orchid@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/0000-0002-6577-693X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кириллов</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirillov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кириллов Дмитрий Валерьевич</p><p>167982, г. Сыктывкар, ул. Коммунистическая, д. 28</p></bio><bio xml:lang="en"><p>Dmitriy V. Kirillov</p><p>28 Kommunisticheskaya St., Syktyvkar 167982</p></bio><email xlink:type="simple">kirdimka@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт биологии Коми научного центра Уральского отделения РАН<country>Россия</country></aff><aff xml:lang="en">Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>23</day><month>11</month><year>2021</year></pub-date><volume>0</volume><issue>3</issue><fpage>272</fpage><lpage>292</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кириллова И.А., Кириллов Д.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Кириллова И.А., Кириллов Д.В.</copyright-holder><copyright-holder xml:lang="en">Kirillova I.A., Kirillov D.V.</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/277">https://sevin.elpub.ru/jour/article/view/277</self-uri><abstract><p>Приведены результаты изучения некоторых аспектов популяционной биологии редкой орхидеи Dactylorhiza incarnata (L.) Soó на территории Республики Коми (северовосток Европейской России), где вид находится на северной границе своего ареала. Представлены данные о структуре популяций, морфометрических особенностях растений и репродуктивных характеристиках вида. Выявлено, что на территории региона размеры растений и количество цветков в соцветии этого вида меньше, чем в более южных частях его ареала. Численность популяций колеблется от 30 до 350 растений при средней плотности размещения от 0.7 до 3.7 особей на 1 м2 . Репродуктивный успех связан с погодными условиями второй декады июня (время цветения вида в регионе). Обнаружено, что размеры семян D. incarnata (в среднем 0.55×0.20 мм) на северной границе меньше, чем в других частях ареала вида. Семенная продуктивность довольно высокая, одна коробочка содержит в среднем 6.2 тыс. семян, реальная семенная продуктивность особи – 49.4 тыс. шт. Качество семян зависит от погодных условий – температуры во время цветения и количества осадков в момент формирования семян. Присутствие ювенильных особей во всех изученных популяциях свидетельствует об успешном семенном возобновлении вида на северном пределе ареала, несмотря на уменьшение семенной продуктивности, по сравнению с более южными его частями. </p></abstract><trans-abstract xml:lang="en"><p>The results of the study of the population biology of the rare orchid Dactylorhiza incarnata (L.) Soó on the territory of the Komi Republic (north-east of European Russia), where the species is located on the northern border of its range, are presented. Data on the population structure, morphometric features of plants, and reproductive characteristics of the species are given. It was found that the size of plants and the number of flowers in the inflorescence of this species in the region is lower than in the more southern parts of its range. The populations size ranges from 30 to 350 individuals with their average density of 0.7–3.7 per 1 m2 , and it is common for this species in other parts of its distribution area. Reproductive success is associated with the weather of the second decade of June because the flowering time of the species in the region happens in this time. It was found that the seed size of D. incarnata (0.55×0.20 mm) on its northern border is smaller than in other parts of the range. The seed productivity is rather high: one fruit contains an average of 6.2 thousands of seeds and one individual could produce about 49.4 thousands of seeds. Temperature during flowering time and precipitation during seed ripening may affect seed quality. The presence of juvenile individuals (%) in all the studied populations shows seed recruitment in populations of this species at the northern limit of the range, despite a lower seed set in comparison with southern populations. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>орхидные</kwd><kwd>структура популяций</kwd><kwd>завязываемость плодов</kwd><kwd>репродуктивный успех</kwd><kwd>семенная продуктивность</kwd><kwd>Республика Коми</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Orchidaceae</kwd><kwd>population structure</kwd><kwd>fruit set</kwd><kwd>reproductive success</kwd><kwd>seed productivity</kwd><kwd>Komi Republic</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена в рамках госзадания Института биологии Коми научного центра Уральского отделения РАН (№ АААА-А19-119011790022-1).</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">Андронова Е. 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