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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Mycology and Phytopathology</journal-id><journal-title-group><journal-title xml:lang="en">Mycology and Phytopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Микология и фитопатология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0026-3648</issn><issn publication-format="electronic">3034-5421</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">655947</article-id><article-id pub-id-type="doi">10.31857/S0026364824030034</article-id><article-id pub-id-type="edn">viyttd</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>БИОРАЗНООБРАЗИЕ, СИСТЕМАТИКА, ЭКОЛОГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Seasonal dynamics of sporophore formation of <italic>Myxomycetes</italic> in Polistovo-Lovatskaya bog system (Pskov and Novgorod regions, Russia)</article-title><trans-title-group xml:lang="ru"><trans-title>Сезонность формирования спороношений миксомицетов (<italic>Myxomycetes</italic>) Полистово-Ловатской болотной системы (Псковская и Новгородская области, Россия)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gmoshinskiy</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Гмошинский</surname><given-names>В. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rubisco@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Borzov</surname><given-names>N. I.</given-names></name><name xml:lang="ru"><surname>Борзов</surname><given-names>Н. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>borzovnikita@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bortnikov</surname><given-names>F. M.</given-names></name><name xml:lang="ru"><surname>Бортников</surname><given-names>Ф. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>f.m.bortnikov@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Matveev</surname><given-names>А. V.</given-names></name><name xml:lang="ru"><surname>Матвеев</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>andrmatveev@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М.В. Ломоносова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Komarov Botanical Institute</institution></aff><aff><institution xml:lang="ru">Ботанический институт им. В.Л. Комарова РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-10-01" publication-format="electronic"><day>01</day><month>10</month><year>2024</year></pub-date><volume>58</volume><issue>3</issue><fpage>205</fpage><lpage>215</lpage><history><date date-type="received" iso-8601-date="2025-02-14"><day>14</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0026-3648/article/view/655947">https://journals.eco-vector.com/0026-3648/article/view/655947</self-uri><abstract xml:lang="en"><p>We investigated the seasonality of myxomycete fruiting body formation under natural conditions in the field during four years in the Polistovo-Lovatskaya bog system (Northwestern Russia). It was shown that the species diversity of myxomycetes peaks in mid-summer and gradually decreases afterwards. The species composition of myxomycetes varies depending on the season. There were five phenological groups distinguished: summer, early autumn, late autumn, spring and species without pronounced periods of mass formation of fruiting bodies. It is shown the list of identifiable taxa may significantly vary in different years and there are widespread species that do not form sporophores every year. Thus, when conducting field studies, it is necessary to make observations over several years and throughout the entire snowless period.</p></abstract><trans-abstract xml:lang="ru"><p>Представлены результаты четырех лет наблюдений за сезонностью формирования спороношений миксомицетов, выполненных на территории Полистово-Ловатской болотной системы. Показано, что наибольшее видовое разнообразие миксомицетов наблюдается в середине лета, после чего оно постепенно снижается. Видовой состав миксомицетов изменяется в зависимости от времени года. Выделены 5 фенологических групп: весенние, летние, раннеосенние, позднеосенние и виды без ярко выраженных периодов массового формирования спороношений. Показано, что в разные годы перечень выявляемых таксонов может значительно отличаться и существуют широко распространенные виды, которые формируют спороношения не каждый год. Таким образом, при проведении исследований в полевых условиях, необходимо планировать их в течение нескольких лет, а выезды осуществлять на протяжении всего бесснежного периода.</p></trans-abstract><kwd-group xml:lang="en"><kwd>biodiversity</kwd><kwd>methodology of field work</kwd><kwd>phenology</kwd><kwd>population dynamics</kwd><kwd>slime molds</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>биоразнообразие</kwd><kwd>динамика численности</kwd><kwd>методология полевых исследований</kwd><kwd>слизевики</kwd><kwd>фенология</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Правительство Российской Федерации</institution></institution-wrap></funding-source><award-id>12401310-0829-3</award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования РФ</institution></institution-wrap></funding-source><award-id>075-15-2021-1396</award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="en">Polistovsky nature reserve</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Полистовский заповедник</institution></institution-wrap></funding-source><award-id>1-22-66-3</award-id></award-group><funding-statement xml:lang="en">The work of the third author was supported by the state task “Taxonomic, ecological and structural-functional diversity of fungi and fungus-like protists”, 12401310-0829-3 (Komarov Botanical Institute RAS)</funding-statement><funding-statement xml:lang="ru">The work of the third author was supported by the state task “Taxonomic, ecological and structural-functional diversity of fungi and fungus-like protists”, 12401310-0829-3 (Komarov Botanical Institute RAS)</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Adl S.M., Bass D., Lane C.E. et al. 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